Lemon.io

<html><head></head><body>Are you a talented Senior Developer looking for a remote job that lets you show your skills and get decent compensation? Look no further than <a href="https://lemon.io/for-developers/?utm_source=workingnomads&amp;utm_medium=job_ad&amp;utm_campaign=supply_en_react_node/python_mar_2026_job_ad" rel="nofollow" target="_blank">Lemon.io</a> — the marketplace that connects you with hand-picked startups in the US and Europe.
What we offer:
<ul>
<li>The rate depends on your seniority level, skills and experience. We've already paid out over $11M to our engineers.</li>
<li>No more hunting for clients or negotiating rates — let us handle the business side of things so you can focus on what you do best.</li>
<li>We'll manually find the best project for you according to your skills and preferences.</li>
<li>Choose a schedule that works best for you. It’s possible to communicate async or minimally overlap within team working hours.</li>
<li>We respect your seniority so you can expect no micromanagement or screen trackers.</li>
<li>Communicate directly with the clients. Most of them have technical backgrounds. Sounds good, yeah?</li>
<li>We will support you from the time you submit the application throughout all cooperation stages.</li>
<li>Most of our projects involve working in a fast-paced startup environment. We hope you like it as much as we do.</li>
<li>Through our community, we will connect you with the best developers from more than 71+ countries.</li>
</ul>
<h3>Requirements for the Senior React &amp; Python Position:</h3>
<ul>
<li>4+ years of software development experience.</li>
</ul>
Commercial experience:
<ul>
<li>
React.js 3+ years &amp; Python 3+ years
OR
</li>
</ul>
React.js 2+ years &amp; Python 5+ years
OR
React.js 5+ years &amp; Python 2+ years
<ul>
<li>Experience with AWS, GCP, or Azure is required.</li>
</ul>
<h3>Requirements for the Senior Node &amp; React Position:</h3>
<ul>
<li>5+ years of software development experience</li>
</ul>
Commercial experience:
<ul>
<li>React.js: 3+ years, Node.js: 5+ years, and Next.js: 2+ years</li>
</ul>
OR
React.js: 5+ years, Node.js: 3+ years, and Next.js: 2+ years
<ul>
<li>Expertise in TypeScript and AWS is a must.</li>
<li>Familiarity with Supabase is a huge plus.</li>
</ul>
Other requirements:
<ul>
<li>Strong technical skills: as a Senior Developer, you are expected to be able to create projects from scratch and have a deep understanding of application architecture.</li>
<li>Clear and effective communication in English — advanced ability to discuss business tasks, justify decisions, and communicate issues. Good self-presentation is also essential for upcoming client calls.</li>
<li>Strong self-organizational skills — ability to work full-time remotely with no supervision.</li>
<li>Reliability — we want to trust you and expect that you won’t let us and the client down.</li>
<li>Adaptability and Flexibility — the ability to onboard the project promptly after accepting it and start delivering results quickly.</li>
</ul>
Sounds good for you? Apply now and join the <a href="https://lemon.io/for-developers/?utm_source=workingnomads&amp;utm_medium=job_ad&amp;utm_campaign=supply_en_react_node/python_mar_2026_job_ad" rel="nofollow" target="_blank">Lemon.io</a> community!
NOT YOUR TECH STACK?
We have multiple projects available for Senior Developers. If you have 4+ years of commercial software development experience and are proficient in any of the following areas: AI Engineering, PHP &amp; Angular, React &amp; Java, Data Science, Blockchain (Web3/Solidity/Solana), React &amp; Python, React &amp; Node, React &amp; Golang, Data Analysis, React &amp; PHP, Symfony, PHP &amp; Vue, Vue &amp; Node.js, DevOps, Android &amp; iOS, Angular &amp; Node.js, Python &amp; Vue, MLOps, Rust, Golang, Shopify &amp; JavaScript, Unreal Engine &amp; C++, Python &amp; LLM, Unity, Vue &amp; Nuxt, Java &amp; Spring, ML Engineering, or Python &amp; Flask — we’d be happy to connect and match you with a suitable project.
If your experience matches our requirements, be ready for the next steps:
<ul>
<li>VideoAsk — watch a short video about our startup, up to 10 minutes</li>
<li>Complete your profile on our website</li>
<li>30-minute screening call</li>
<li>Technical interview</li>
<li>Feedback</li>
<li>Magic Box (we are looking for the best project for you).</li>
</ul>
We do not provide visa assistance, and our cooperation model does not include the benefits typically offered with direct hire.
P.S. We work with developers from 71+ countries in different regions: Europe, LATAM, the U.S (if you are an owner of W-9 ben form), Canada, Asia (Japan, Singapore, South Korea, Philippines, Indonesia), Oceania (Australia, New Zealand, Papua New Guinea), and the the UK. However, we have some exceptions.
At the moment, we don’t have a legal basis to accept applicants from the following countries:
<ul>
<li>European: Hungary, Iceland, Liechtenstein, Kosovo, Belarus, Russia, and Serbia.</li>
<li>Latin America: Cuba and Nicaragua</li>
<li>Most Asian countries and Africa.</li>
</ul>
We expand and shorten the list of exemptions regularly.
Do you represent a company with engineers who match the description and want to collaborate with us through staff augmentation? Then register <a href="https://lemon.io/for-developers/?utm_source=workingnomads&amp;utm_medium=job_ad&amp;utm_campaign=supply_en_react_node/python_mar_2026_job_ad" rel="nofollow" target="_blank">here</a>.
&nbsp;
&nbsp;
&nbsp;</body></html>

Are you a talented Senior Developer looking for a remote job that lets you show your skills and get decent compensation? Look no further than Lemon.io — the marketplace that connects you with hand-picked startups in the US and Europe.
What we offer:
The rate depends on your seniority level, skills and experience. We've already paid out over $11M to our engineers.
No more hunting for clients or negotiating rates — let us handle the business side of things so you can focus on what you do best.
We'

Senior Full-stack Developer

Gravity9

<html><head></head><body>gravity9 is seeking a Technical Lead / Solution Architect to lead the design and build of a secure metadata catalogue platform for a UK public sector client. The platform will serve as a centralised index for discovering, governing, and controlling access to data distributed across multiple independent domains — enabling authorised parties to locate and retrieve data without the catalogue itself holding or having visibility of the underlying data.This is a greenfield build requiring strong architectural judgment, hands-on delivery capability, and the ability to work within a multi-vendor environment where the catalogue integrates with separate data storage and encryption services provided by other technology partners. Duration15 weeks CommitmentHalf-time for the first 4 weeks (design phase); full-time for the remaining 11 weeks (build and integration) Working modelMostly remote with periodic onsite attendance Security clearanceBPSS (Baseline Personnel Security Standard) required ResidencyUK resident required Technical ScopeThe contractor will be responsible for leading the design and delivery of the API layer and application logic. A dedicated database consulting engineer will handle MongoDB cluster configuration, schema design, indexing, and performance tuning — the contractor will collaborate closely with them but will own the application-layer delivery. ResponsibilitiesArchitecture &amp; Design (Weeks 1 4, half-time)<ul><li>Design the Attribute-Based Access Control (ABAC) model, including policy attributes (clearance level, nationality, group/role, context), enforcement points, and decision logic</li><li>Design the RESTful API architecture, including endpoint structure, request/response contracts, and error handling patterns</li><li>Map out query patterns, access flows, and integration touchpoints with external systems (data storage and encryption services provided by partner organisations)</li><li>Collaborate with the database consulting engineer on schema design, search strategy, and encryption approach to ensure the API layer aligns with the underlying data model</li><li>Contribute to Infrastructure as Code design for deployment (Terraform or similar)</li></ul>Build &amp; Implementation (Weeks 5 15, full-time)<ul><li>Build a RESTful API layer in Java implementing full catalogue functionality:<ul><li>CRUD operations for metadata records</li><li>Advanced search capability leveraging Atlas Search</li><li>ABAC enforcement on all API operations, ensuring search results and data retrieval are filtered by the requestor s access attributes</li><li>Secure storage and retrieval of encrypted key material (shard keys) via CS-FLE</li></ul></li><li>Implement unit tests to validate functional correctness</li><li>Build automated data load and stress testing harnesses for the combined API and cluster deployment</li><li>Perform integration testing against external partner systems (or appropriate stand-ins) to validate end-to-end data creation and retrieval flows</li><li>Produce API documentation and integration guides for consuming systems</li><li>Support knowledge transfer and handover activities in the final weeks of the engagement</li></ul> Essential<ul><li>Java development — strong hands-on capability building production RESTful APIs (Spring Boot or similar framework)</li><li>MongoDB — solid working experience with MongoDB, including querying, aggregation pipelines, and integrating MongoDB into Java application layers</li><li>Atlas Search — practical experience designing and implementing search solutions using Atlas Search (or Lucene-based search within MongoDB)</li><li>Security &amp; encryption — experience with Client-Side Field Level Encryption (CS-FLE) or equivalent application-layer encryption patterns; understanding of key management concepts</li><li>Infrastructure as Code — experience with Terraform or equivalent for deploying and managing application infrastructure</li><li>API design — ability to design clean, well-documented RESTful APIs suitable for integration by multiple consuming systems</li><li>Testing — experience with load/stress testing tools and approaches for validating API performance under realistic conditions</li><li>Technical leadership — proven ability to make architectural decisions, produce design documentation, and communicate technical trade-offs to both engineering and non-technical stakeholders</li></ul> Desirable<ul><li>Experience designing and implementing Attribute-Based Access Control (ABAC) systems; familiarity with policy-as-code frameworks (e.g. Casbin, OPA, or XACML-based systems)</li><li>Experience with metadata standards such as DCAT, Dublin Core, or IES</li><li>Experience working in UK public sector or defence environments</li><li>Familiarity with multi-classification or multi-tenancy access models</li><li>Experience with event-driven architectures and asynchronous processing patterns</li><li>Understanding of consistency patterns in multi-service architectures (e.g. saga pattern, eventual consistency)</li><li>Knowledge of data mesh or federated data architecture concepts</li><li>Experience integrating with third-party data storage APIs (e.g. S3-compatible interfaces)</li></ul></body></html>

gravity9 is seeking a Technical Lead / Solution Architect to lead the design and build of a secure metadata catalogue platform for a UK public sector client. The platform will serve as a centralised index for discovering, governing, and controlling access to data distributed across multiple independent domains — enabling authorised parties to locate and retrieve data without the catalogue itself holding or having visibility of the underlying data.
This is a greenfield build requiring strong architectural judgment, hands-on delivery capability, and the ability to work within a multi-vendor environment where the catalogue integrates with separate data storage and encryption services provided by other technology partners.

Duration
15 weeks

Commitment
Half-time for the first 4 weeks (design phase); full-time for the remaining 11 weeks (build and integration)

Working model
Mostly remote with periodic onsite attendance

Security clearance
BPSS (Baseline Personnel Security Standard) required

Residency
UK resident required

Technical Scope
The contractor will be responsible for leading the design and delivery of the API layer and application logic. A dedicated database consulting engineer will handle MongoDB cluster configuration, schema design, indexing, and performance tuning — the contractor will collaborate closely with them but will own the application-layer delivery.

Responsibilities
Architecture &amp; Design (Weeks 1 4, half-time)

Design the Attribute-Based Access Control (ABAC) model, including policy attributes (clearance level, nationality, group/role, context), enforcement points, and decision logic
Design the RESTful API architecture, including endpoint structure, request/response contracts, and error handling patterns
Map out query patterns, access flows, and integration touchpoints with external systems (data storage and encryption services provided by partner organisations)
Collaborate with the database consulting engineer on schema design, search strategy, and encryption approach to ensure the API layer aligns with the underlying data model
Contribute to Infrastructure as Code design for deployment (Terraform or similar)

Build &amp; Implementation (Weeks 5 15, full-time)

Build a RESTful API layer in Java implementing full catalogue functionality:
CRUD operations for metadata records
Advanced search capability leveraging Atlas Search
ABAC enforcement on all API operations, ensuring search results and data retrieval are filtered by the requestor s access attributes
Secure storage and retrieval of encrypted key material (shard keys) via CS-FLE

Implement unit tests to validate functional correctness
Build automated data load and stress testing harnesses for the combined API and cluster deployment
Perform integration testing against external partner systems (or appropriate stand-ins) to validate end-to-end data creation and retrieval flows
Produce API documentation and integration guides for consuming systems
Support knowledge transfer and handover activities in the final weeks of the engagement

Essential

Java development — strong hands-on capability building production RESTful APIs (Spring Boot or similar framework)
MongoDB — solid working experience with MongoDB, including querying, aggregation pipelines, and integrating MongoDB into Java application layers
Atlas Search — practical experience designing and implementing search solutions using Atlas Search (or Lucene-based search within MongoDB)
Security &amp; encryption — experience with Client-Side Field Level Encryption (CS-FLE) or equivalent application-layer encryption patterns; understanding of key management concepts
Infrastructure as Code — experience with Terraform or equivalent for deploying and managing application infrastructure
API design — ability to design clean, well-documented RESTful APIs suitable for integration by multiple consuming systems
Testing — experience with load/stress testing tools and approaches for validating API performance under realistic conditions
Technical leadership — proven ability to make architectural decisions, produce design documentation, and communicate technical trade-offs to both engineering and non-technical stakeholders

Desirable

Experience designing and implementing Attribute-Based Access Control (ABAC) systems; familiarity with policy-as-code frameworks (e.g. Casbin, OPA, or XACML-based systems)
Experience with metadata standards such as DCAT, Dublin Core, or IES
Experience working in UK public sector or defence environments
Familiarity with multi-classification or multi-tenancy access models
Experience with event-driven architectures and asynchronous processing patterns
Understanding of consistency patterns in multi-service architectures (e.g. saga pattern, eventual consistency)
Knowledge of data mesh or federated data architecture concepts
Experience integrating with third-party data storage APIs (e.g. S3-compatible interfaces)

Lead Java Developer/Solution Architect

AmbitionPad

<html><head></head><body>We are looking for a highly experienced, fully remote Principal Backend Engineer. You ll be UK or EU based and you ll be working in a team of backend engineers across MPG to drive the delivery and deployment of backend services for industry-leading game projects. You will act as a key engineering contact for external co-dev clients, collaborating with the Technical Director and Lead to architect solutions that balance technical idealism with production pragmatism.You will define the technical architecture for major game titles, ensure implementation quality, and mentor the engineering team. Requirements<ul><li>Experience in game development and having shipped multiple live games (or similar products) with a high concurrent user count</li><li>Proven experience architecting distributed applications with a high concurrent user base (hundreds of thousands), ideally proven with a released title or robust load tests</li><li>Production experience with at least one of Java, Golang, C#, C++, Kotlin; experience with Python, Node.js and React is desirable</li><li>Solid database experience, with the ability to work effectively with both SQL and NoSQL databases</li><li>Proven experience with cloud platforms: Amazon Web Services, Google Cloud and Microsoft Azure; having an AWS Certification (Professional level) would be advantageous</li><li>Proven experience building backend infrastructure using infrastructure as code tools, e.g. Terraform</li><li>Proven experience using Kubernetes and Docker to build products at scale</li><li>Ability to autonomously architect and design online services based on a specification</li><li>Ability to navigate changes calmly and manage multiple pieces of potentially confidential information</li><li>Excellent time management and ability to work autonomously</li><li>Clear and effective communicator with the ability to discuss technical strategy with non-technical stakeholders and adapt to client needs</li><li>Experience building CI/CD pipelines from scratch or improving existing client solutions</li><li>Awareness of security/cheating implications of technology choices</li><li>Experience using Gen AI for code generation</li></ul> Beneficial<ul><li>Deep expertise in at least one relevant area of backend technology, e.g. DevOps, Microservices, Cloud Architecture</li><li>Understanding of how a backend service integrates with the game - experience with Unreal or Unity would be useful but not required</li><li>An understanding of how to use LLMs to process and query structured and unstructured data</li></ul> Responsibilities<ul><li>Individual contribution: architect systems, write code, deployments, etc.</li><li>Act as the engineering contact point between MPG and the client, working alongside the Project Manager and Engineering Leadership</li><li>Translate client requirements into tasks for yourself and team members</li><li>Make the right trade-offs to design systems based on performance, time, and budget</li><li>Mentor and delegate pieces of work to other team members to help develop them as engineers</li><li>Create estimated cost spreadsheets for online services based on projected concurrent users</li><li>Cultivate engineering best practices across teams: modular design, code quality, testing</li><li>Work with the Lead and Production to communicate risks, benefits, and future roadmaps</li><li>Active mentorship of the engineering team towards professional accreditation (e.g., AWS Certification) and technical leadership.</li></ul></body></html>

We are looking for a highly experienced, fully remote Principal Backend Engineer. You ll be UK or EU based and you ll be working in a team of backend engineers across MPG to drive the delivery and deployment of backend services for industry-leading game projects. You will act as a key engineering contact for external co-dev clients, collaborating with the Technical Director and Lead to architect solutions that balance technical idealism with production pragmatism.
You will define the technical architecture for major game titles, ensure implementation quality, and mentor the engineering team.

Requirements

Experience in game development and having shipped multiple live games (or similar products) with a high concurrent user count
Proven experience architecting distributed applications with a high concurrent user base (hundreds of thousands), ideally proven with a released title or robust load tests
Production experience with at least one of Java, Golang, C#, C++, Kotlin; experience with Python, Node.js and React is desirable
Solid database experience, with the ability to work effectively with both SQL and NoSQL databases
Proven experience with cloud platforms: Amazon Web Services, Google Cloud and Microsoft Azure; having an AWS Certification (Professional level) would be advantageous
Proven experience building backend infrastructure using infrastructure as code tools, e.g. Terraform
Proven experience using Kubernetes and Docker to build products at scale
Ability to autonomously architect and design online services based on a specification
Ability to navigate changes calmly and manage multiple pieces of potentially confidential information
Excellent time management and ability to work autonomously
Clear and effective communicator with the ability to discuss technical strategy with non-technical stakeholders and adapt to client needs
Experience building CI/CD pipelines from scratch or improving existing client solutions
Awareness of security/cheating implications of technology choices
Experience using Gen AI for code generation

Beneficial

Deep expertise in at least one relevant area of backend technology, e.g. DevOps, Microservices, Cloud Architecture
Understanding of how a backend service integrates with the game - experience with Unreal or Unity would be useful but not required
An understanding of how to use LLMs to process and query structured and unstructured data

Responsibilities

Individual contribution: architect systems, write code, deployments, etc.
Act as the engineering contact point between MPG and the client, working alongside the Project Manager and Engineering Leadership
Translate client requirements into tasks for yourself and team members
Make the right trade-offs to design systems based on performance, time, and budget
Mentor and delegate pieces of work to other team members to help develop them as engineers
Create estimated cost spreadsheets for online services based on projected concurrent users
Cultivate engineering best practices across teams: modular design, code quality, testing
Work with the Lead and Production to communicate risks, benefits, and future roadmaps
Active mentorship of the engineering team towards professional accreditation (e.g., AWS Certification) and technical leadership.

Principal Backend Engineer

Proxify

<html><head></head><body><h3>About us:</h3>
&nbsp;
Talent has no borders. Proxify's mission is to connect top developers around the world with the opportunities they deserve. So, it doesn't matter where you are; we are here to help you fast-track your independent career in the right direction. 🙂
Since our launch, Proxify's developers have successfully worked with 1200+ happy clients to build their products and growth features. 5000+ talented developers trust Proxify and its network to fulfill their dreams and objectives.
Proxify is shaped by a global network of supportive, talented developers interested in remote full-time jobs. Our Glassdoor (4.5/5) and Trustpilot (4.8/5) ratings reflect the trust developers place in us and our commitment to our members' success.
&nbsp;
<h3>The Role:</h3>
&nbsp;
We are looking for a Senior Backend (Node.js / Nest.js) Developer to join our fast-growing network. You’ll be responsible for building modern and scalable web applications, working closely with backend developers and designers to create intuitive user experiences.
This is a long-term, full-time remote role with opportunities to work on innovative projects that make a difference.
&nbsp;
What we’re looking for:
<ul>
<li>5+ years with Node.js and 3+ past years with Nest.js</li>
<li>Strong expertise in Node.js and Nest.js frameworks.</li>
<li>Proven experience building REST and/or GraphQL APIs.</li>
<li>Strong knowledge of JavaScript (ES6+) and TypeScript.</li>
<li>Solid experience with relational and/or NoSQL databases (e.g., PostgreSQL, MySQL, MongoDB).</li>
<li>Familiarity with authentication/authorization mechanisms (JWT, OAuth2).</li>
<li>Experience with unit/integration testing (e.g., Jest, Mocha).</li>
<li>Proficiency with Git and version control workflows.</li>
<li>Located in CET timezone (+/- 3 hours), we are unable to consider applications from candidates in other time zones.</li>
</ul>
&nbsp;
Nice to Have:
<ul>
<li>Experience with cloud platforms (AWS, Azure, GCP).</li>
<li>Familiarity with CI/CD pipelines and DevOps practices.</li>
<li>Understanding of event-driven architecture and message brokers (e.g., RabbitMQ, Kafka).</li>
<li>Experience with Docker and containerized applications.</li>
<li>Knowledge of microservices and serverless architectures.</li>
</ul>
&nbsp;
Responsibilities:
<ul>
<li>Design and develop robust, scalable, and secure backend applications using Node.js and Nest.js.</li>
<li>Implement RESTful APIs, GraphQL endpoints, and microservices architectures.</li>
<li>Optimize application performance, scalability, and maintainability.</li>
<li>Integrate with databases (SQL/NoSQL) and external services via APIs.</li>
<li>Ensure code quality, security, and compliance with industry standards.</li>
</ul>
&nbsp;
<h3>What we offer:</h3>
&nbsp;
Get paid, not played
No more unreliable clients. Enjoy on-time monthly payments with flexible withdrawal options.
&nbsp;
Predictable project hours
Enjoy a harmonious work-life balance with consistent 8-hour working days with clients.
&nbsp;
Flex days, so you can recharge
Enjoy up to 24 flex days off per year without losing pay, for full-time positions found through Proxify.
&nbsp;
Career-accelerating positions at cutting-edge companies
Discover exclusive long-term remote positions at the world's most exciting companies.
&nbsp;
Hand-picked opportunities, just for you
Skip the typical recruitment roadblocks and biases with personally matched positions.
&nbsp;
One seamless process, multiple opportunities
A one-time contracting process for endless opportunities, with no extra assessments.
&nbsp;
Compensation
Enjoy the same pay, every month with positions landed through Proxify.</body></html>

About us:
 
Talent has no borders. Proxify's mission is to connect top developers around the world with the opportunities they deserve. So, it doesn't matter where you are; we are here to help you fast-track your independent career in the right direction. 🙂
Since our launch, Proxify's developers have successfully worked with 1200+ happy clients to build their products and growth features. 5000+ talented developers trust Proxify and its network to fulfill their dreams and objectives.
Proxify is 

Senior Backend Developer (Node.js / Nest.js)

<html><head></head><body><h3>About us:</h3>
&nbsp;
Talent has no borders. Proxify's mission is to connect top developers around the world with opportunities they deserve. So, it doesn't matter where you are; we are here to help you fast-track your independent career in the right direction. 🙂
Since our launch, Proxify's developers have successfully worked with 1200+ happy clients to build their products and growth features. 5000+ talented developers trust Proxify and its network to fulfill their dreams and objectives.
Proxify is shaped by a global network of supportive, talented developers interested in remote full-time jobs. Our Glassdoor (4.5/5) and Trustpilot (4.8/5) ratings reflect the trust developers place in us and our commitment to our members' success.
 &nbsp;
<h4>The Role:</h4>
&nbsp;
We are looking for a Senior Fullstack Python Developer to join our fast-growing Network.
In this role, you’ll lead the design and implementation of scalable backend services and APIs using Python (FastAPI, Django, or Flask), while delivering polished, performant user interfaces using modern frontend frameworks such as React.js or Vue.js.
You will collaborate closely with product managers, designers, and other engineers to deliver end-to-end features, contribute to architectural decisions, and mentor junior developers.
This is a long-term, full-time remote engagement, with the opportunity to work with cloud platforms, CI/CD pipelines, and modern tooling to build real products used globally.
&nbsp;
<h4>What we are looking for:</h4>
&nbsp;
<ul>
<li>5+ years of professional software development experience with strong fullstack exposure.</li>
<li>3+ years of production experience with Python (FastAPI, Django, Flask).</li>
<li>Solid knowledge of JavaScript/TypeScript, HTML5, CSS3.</li>
<li>Strong experience with React.js or Vue.js (or similar modern frameworks such as Next.js/Nuxt.js).</li>
<li>Experience with relational databases (PostgreSQL, MySQL) and ORMs such as SQLAlchemy or Django ORM.</li>
<li>Strong understanding of RESTful API design and integration patterns.</li>
<li>Experience writing automated tests (unit, integration) for both backend and frontend.</li>
<li>Practical experience with Docker and familiarity with CI/CD pipelines (GitHub Actions, GitLab CI, CircleCI, etc.).</li>
<li>Experience deploying and operating services in the cloud (AWS, Azure, GCP).</li>
<li>Strong problem-solving skills and excellent English communication (written and spoken).</li>
<li>Ability to work independently and deliver high-quality results in a remote setup.</li>
<li>Located in CET timezone (+/- 3 hours), we are unable to consider applications from candidates in other time zones.</li>
</ul>
&nbsp;
<h4>Nice-to-have:</h4>
&nbsp;
<ul>
<li>Deep experience with TypeScript and modern frontend tooling (Vite, Webpack, Turbopack).</li>
<li>Familiarity with microservices, DDD, CQRS, or event-driven architectures.</li>
<li>Experience with GraphQL and schema design.</li>
<li>Knowledge of message brokers (RabbitMQ, Kafka, Redis Streams).</li>
<li>Experience with Kubernetes or other orchestration platforms.</li>
<li>Exposure to performance tuning, caching strategies, and observability (logs, tracing, metrics).</li>
<li>Security best practices (OWASP, auth flows, OAuth2/OpenID Connect).</li>
<li>Background in startups or fast-paced product environments.</li>
<li>Contributions to open-source projects or published technical content.</li>
</ul>
&nbsp;
<h4>Responsibilities:</h4>
&nbsp;
<ul>
<li>Design, implement, and operate scalable backend services using Python (FastAPI, Django, Flask).</li>
<li>Build and maintain responsive, accessible web UIs using React.js, Vue.js, or similar modern frameworks.</li>
<li>Design, document, and consume RESTful APIs (and optionally GraphQL).</li>
<li>Integrate backend systems with relational and NoSQL databases.</li>
<li>Ensure high code quality through unit/integration tests, code reviews, and automated pipelines.</li>
<li>Make architectural decisions across backend, frontend, and system integration (monolith vs microservices).</li>
<li>Collaborate with designers and product teams to translate requirements into technical solutions and excellent user experiences.</li>
<li>Troubleshoot production issues, optimize performance, and ensure reliability and security.</li>
<li>Mentor and guide other engineers, helping elevate team best practices.</li>
<li>Work in an agile environment and contribute to continuous process and delivery improvements.</li>
<li>Document architectural decisions, API contracts, workflows, and deployment procedures.</li>
</ul>
&nbsp;
&nbsp;
<h3>What we offer:</h3>
&nbsp;
Get paid, not played
No more unreliable clients. Enjoy on-time monthly payments with flexible withdrawal options.
&nbsp;
Predictable project hours
Enjoy a harmonious work-life balance with consistent 8-hour working days with clients.
&nbsp;
Flex days, so you can recharge
Enjoy up to 24 flex days off per year without losing pay, for full-time positions found through Proxify.
&nbsp;
Career-accelerating positions at cutting-edge companies
Discover exclusive long-term remote positions at the world's most exciting companies.
&nbsp;
Hand-picked opportunities, just for you
Skip the typical recruitment roadblocks and biases with personally matched positions.
&nbsp;
One seamless process, multiple opportunities
A one-time contracting process for endless opportunities, with no extra assessments.
&nbsp;
Compensation
Enjoy the same pay, every month with positions landed through Proxify.</body></html>

About us:
 
Talent has no borders. Proxify's mission is to connect top developers around the world with opportunities they deserve. So, it doesn't matter where you are; we are here to help you fast-track your independent career in the right direction. 🙂
Since our launch, Proxify's developers have successfully worked with 1200+ happy clients to build their products and growth features. 5000+ talented developers trust Proxify and its network to fulfill their dreams and objectives.
Proxify is shap

Senior Fullstack Developer (Python)

Global Force USA

Java backend developer - Initially Remote - CTH

Hello, my name is Angel Nikolov and I am the founder of <a href="https://remotefrontendjobs.com">https://remotefrontendjobs.com</a> and <a href="https://remotebackendjobs.com">https://remotebackendjobs.com</a>.
 
 
 I recently noticed your posts on some remote job boards and wondered if you’d be interested into featuring an ad on mine.
 
 In fact, since both my sites are aggregating a lot of different sources some of your advertisements are already listed and you can see some of them here - <a href="https://remotefrontendjobs.com/cl96lgn8w64666snbwci4ub9gs?ref=marketing" target="_blank">Senior Software Engineer (Tripadvisor Plus)</a>.
 
 

Cutting right to the chase - in terms of visits I get over 3,000 visits per month and I have built a good size audience on twitter - <a href="https://twitter.com/remotefrontends" target="_blank"> https://twitter.com/remotefrontends </a> and <a href="https://twitter.com/remotebackends" target="_blank"> https://twitter.com/remotebackends </a>.
 
Let me know if like the idea of featuring a job post,
 
Angel Nikolov
 
Remote Frontend/Backend Jobs Founder

Hi, it's Angel Nikolov again!
	 
	I just wanted to follow up on my last email and ask you if you had time to review the the idea for featuring a job on <a href="https://remotefrontendjobs.com?ref=marketing">https://remotefrontendjobs.com</a> or <a href="https://remotebackendjobs.com?ref=marketing">https://remotebackendjobs.com</a>.
	 
	 
	I would appreciate any kind of feedback!
	 
 Thanks again!
 
 Angel

Tripadvisor

<html><head></head><body>We
re looking for a Senior Software Engineer to join our fast-growing team. This role is open to candidates based within a commutable distance (generally up to 2 hours) of one of our office hubs in London or Oxford. We embrace flexibility in where and how work gets done and also value meaningful in-person moments to connect and collaborate. You can expect a remote-first working model with periodic in-person gatherings at your closest office for team connection, planning, or other key moments.At Tripadvisor our Engineers are versatile and enjoy working on a variety of technical challenges. This is a full-stack position in which you will be working mostly on the backend with some front end projects from time to time.Within Tripadvisor we have a fun and friendly environment where the key objective is getting things done. Working closely alongside product managers and designers, our engineers are part of the full process from software design, to code, to test, to deployment and back again. Most of our engineers release code to production every few days and we have a daily release cycle.Tripadvisor's web stack includes Java, React, Typescript, GraphQL, Kubernetes, SQL and NoSQL databases, and runs on AWS. You don t need to have experience with everything listed and will be able to complete coding languages in any language of your choice. You do need to be hungry to learn and will learn our tech stack on the job, if you don't know it already. Requirements<ul><li>Based within a commutable distance (generally up to 2 hours) of one of our office hubs in London or Oxford</li><li>Versatile engineering skills across full-stack development, with a focus mostly on backend development and occasional front-end projects</li><li>Willingness and hunger to learn new technologies and programming languages on the job</li><li>Experience or interest in working with technologies such as Java, React, Typescript, GraphQL, Kubernetes, SQL and NoSQL databases, and AWS</li><li>Ability to work closely alongside product managers and designers, being involved in the full software development lifecycle from design to deployment</li></ul></body></html>

We
re looking for a Senior Software Engineer to join our fast-growing team. This role is open to candidates based within a commutable distance (generally up to 2 hours) of one of our office hubs in London or Oxford. We embrace flexibility in where and how work gets done and also value meaningful in-person moments to connect and collaborate. You can expect a remote-first working model with periodic in-person gatherings at your closest office for team connection, planning, or other key moments.
At Tripadvisor our Engineers are versatile and enjoy working on a variety of technical challenges. This is a full-stack position in which you will be working mostly on the backend with some front end projects from time to time.
Within Tripadvisor we have a fun and friendly environment where the key objective is getting things done. Working closely alongside product managers and designers, our engineers are part of the full process from software design, to code, to test, to deployment and back again. Most of our engineers release code to production every few days and we have a daily release cycle.
Tripadvisor's web stack includes Java, React, Typescript, GraphQL, Kubernetes, SQL and NoSQL databases, and runs on AWS. You don t need to have experience with everything listed and will be able to complete coding languages in any language of your choice. You do need to be hungry to learn and will learn our tech stack on the job, if you don't know it already.

Requirements

Based within a commutable distance (generally up to 2 hours) of one of our office hubs in London or Oxford
Versatile engineering skills across full-stack development, with a focus mostly on backend development and occasional front-end projects
Willingness and hunger to learn new technologies and programming languages on the job
Experience or interest in working with technologies such as Java, React, Typescript, GraphQL, Kubernetes, SQL and NoSQL databases, and AWS
Ability to work closely alongside product managers and designers, being involved in the full software development lifecycle from design to deployment

Senior Software Engineer

Apetan Consulting

Core Java Backend Developer /Remote

Bitso

<html><head></head><body><img class="webfeedsFeaturedVisual" src="https://cryptojobslist.com/api/og/job/senior-java-engineer-latin-america-at-bitso.png" width="480px"> 

 Tags: <a href="https://cryptojobslist.com">Web3 Jobs</a> • <a href="https://cryptojobslist.com/web3">Web3 Web3 Jobs</a> • <a href="https://cryptojobslist.com/research">Blockchain Research Jobs</a> • <a href="https://cryptojobslist.com/developer">Blockchain Developer Jobs</a> • <a href="https://cryptojobslist.com/trading">Web3 Trading Jobs</a> • <a href="https://cryptojobslist.com/engineering">Cryptocurrency Engineering Jobs</a> • <a href="https://cryptojobslist.com/non-tech">Blockchain Non Tech Jobs</a> • <a href="https://cryptojobslist.com/remote">Web3 Remote Jobs</a> • <a href="https://cryptojobslist.com/junior-level">Cryptocurrency Junior Level Jobs</a> • <a href="https://cryptojobslist.com/senior">Blockchain Senior Jobs</a> • <a href="https://cryptojobslist.com/community">Web3 Community Jobs</a> • <a href="https://cryptojobslist.com/engineering-manager">Blockchain Engineering Manager Jobs</a> • <a href="https://cryptojobslist.com/manager">Web3 Manager Jobs</a> • <a href="https://cryptojobslist.com/kubernetes">Cryptocurrency Kubernetes Jobs</a> • <a href="https://cryptojobslist.com/java">Cryptocurrency Java Jobs</a> • <a href="https://cryptojobslist.com/finance">Web3 Finance Jobs</a> • <a href="https://cryptojobslist.com/docker">Cryptocurrency Docker Jobs</a> • <a href="https://cryptojobslist.com/policy">Blockchain Policy Jobs</a> • <a href="https://cryptojobslist.com/full-time">Blockchain Full Time Jobs</a><h3>Working At Bitso</h3>We are a diverse team that takes pride in understanding the perspectives of others. We fully embrace working remotely and we are eager to act, improve and accelerate progress inside and outside of our organization.To drive revolutionary changes in society and make crypto useful, we delight our customers with world-class products, deep care, and intentional empathy.Your Purpose&nbsp;At Bitso, the Senior Java Software Engineer takes ownership of critical technical decisions, collaborating with the team to implement enhancements and ensure the highest quality in our systems. You will play a pivotal role in defining and delivering cutting-edge technical solutions, guiding and mentoring other engineers, and setting the technical direction and architecture of our applications. Your ongoing responsibilities include maintaining and continuously improving these solutions, ensuring they meet the demands of our growing user base.Reports ToThis Role will be reporting to the an Engineering Manager.&nbsp;Who You Are&nbsp;<ul><li>You are a professional with excellent verbal and written language communication skills (English language proficiency required)</li><li>You are experienced in Java development, with a proven track record of designing, developing, and maintaining robust Java applications.</li><li>You have deep technical expertise in core Java concepts, including multithreading, concurrency and optimization of the runtime.</li><li>You excel in designing scalable and high-performance architectures, with a focus on microservices, RESTful APIs, and cloud-native solutions.</li><li>You are a collaborative leader, with experience leading engineering teams, mentoring junior engineers, and driving best practices in software development.</li><li>You are committed to continuous improvement, staying updated with the latest trends and advancements in Java and related technologies.</li><li>You are expected to work independently with a proactive, "get it done" attitude.</li></ul>We expected solid knowledge of:<ul><li>Object-Oriented and Functional Programming: Strong design skills in Java and Spring, with a focus on API design, implementation, and testing.</li><li>Continuous Integration and Continuous Deployment: Experience with tools like Maven, Gradle, Jenkins, and Spinnaker, ensuring seamless build and deployment pipelines.</li><li>Software Architecture and System Design: Ability to architect scalable and efficient systems, with a deep understanding of software design principles.</li><li>Databases: Strong expertise in database management, including PostgreSQL, with hands-on experience in database migrations and schema evolution.</li><li>Cloud Architectures, Microservices, and Distributed Systems: Comprehensive understanding of modern cloud environments and the design of microservices and distributed systems.</li><li>Containerization: Proficiency with Kubernetes and Docker, enabling smooth deployment and orchestration of applications.</li><li>Domain Understanding: Quick to grasp and adapt to new domains, translating complex requirements into effective technical solutions.</li><li>Familiarity with Additional Technologies: Knowledge of PHP and Shell Scripting is a plus, enhancing versatility across different tech stacks.</li></ul>What You Will Do&nbsp;<ul><li>Architect Scalable Solutions: Design and implement scalable, high-impact improvements to our product that support rapid growth and high visibility.</li><li>Deliver High-Performance Code: Produce efficient, high-performance code that scales to meet the demands of hundreds of thousands of daily users.</li><li>Stay Hands-On: Maintain active involvement in coding, participating fully in the development process from start to finish.</li><li>Design and Implement Tests: Create comprehensive software tests to ensure robust and reliable systems.</li><li>Conduct Quality Code Reviews: Perform thorough and respectful code reviews, maintaining the highest quality standards across the team.</li><li>Resolve Issues Efficiently: Act quickly to debug and resolve issues, minimizing disruption and maintaining system integrity.</li><li>Champion Engineering Excellence: Advocate for best practices in engineering, promoting efficiency, continuous improvement, and innovation.</li><li>Foster Knowledge Sharing: Engage with the Bitso engineering community, contributing to knowledge sharing, innovation, and effective problem-solving.</li></ul><a href="https://hbr.org/2022/07/apply-to-a-job-even-if-you-dont-meet-all-criteria" rel="noopener noreferrer nofollow ugc" target="_blank">Research</a> in Diversity, Equity, and Inclusion suggests that individuals may hesitate to apply for jobs if they do not meet all the listed criteria. At Bitso, we value diversity and your unique strengths could be just what we're looking for. If this role excites you but you don't match every point in the description, we still want to hear from you.<h3>Who We Are</h3>With over 9 million users, Bitso is the leading cryptocurrency platform in Latin America. We are developing the cryptocurrency ecosystem in the region and enabling financial inclusion. We believe crypto is the future of finance, and we’re committed to making it useful by providing equal access to safe and intuitive financial products.When we hire people for our team, we specifically test for the following traits in addition to our cultural values:<ul><li>Mission-Driven: We seek individuals who are passionate about crypto and Bitso’s mission and resilient in facing industry challenges</li><li>High Sense of Urgency: We prioritize candidates who demonstrate a high sense of urgency and responsibility.</li></ul><ul><li>Exceptional Hard Skills: We seek individuals who possess exceptional skills in their respective fields, with no room for mediocrity.</li><li>Self-Management: We look for individuals who can independently manage their work, career, and professional development.</li></ul><h3>Compensation &amp; Benefits</h3>At Bitso, you are taking the front seat on the edge of crypto innovation, creating the next generation of crypto-powered products.So for those willing to commit, adapt and pioneer the most important change of the century we offer:<ul><li>Me Time program, including unlimited paid time off.</li><li>Remote-first work environment.</li><li>Employee Stock Option program.</li><li>Zero trading fees through our Bitso Alpha app.</li><li>Extended Family LeavePolicy: all birthing parents, non-birthing parents and adopting parents are eligible for a 4-months leave.</li><li>Premium health, dental and life insurances in Mexico, Gibraltar, Colombia, USA, Brazil and Argentina.</li><li>Monthly stipend for gym memberships, relaxation activities, sports equipment, cooking classes, books, entertainment and more.</li></ul>Want to leave an undoubtedly legacy with us? Fasten your seatbelt and join this spaceship, where you will find exponential growth and the opportunity to thrive!<ul><li>These are the applicable requisites, although equivalent competencies in any of the above will also be considered.</li><li>To see our Privacy Policy please click <a href="https://bitso.com/terms" rel="noopener noreferrer nofollow ugc" target="_blank">here</a>.</li></ul>Apply here 👉 <a href="https://cryptojobslist.com/jobs/senior-java-engineer-latin-america-at-bitso?utm_medium=RSS">Senior Java Engineer</a>
</body></html>

Tags: Web3 Jobs • Web3 Web3 Jobs • Blockchain Research Jobs • Blockchain Developer Jobs • Web3 Trading Jobs • Cryptocurrency Engineering Jobs • Blockchain Non Tech Jobs • Web3 Remote Jobs • Cryptocurrency Junior Level Jobs • Blockchain Senior Jobs • Web3 Community Jobs • Blockchain Engineering Manager Jobs • Web3 Manager Jobs • Cryptocurrency Kubernetes Jobs • Cryptocurrency Java Jobs • Web3 Finance Jobs • Cryptocurrency Docker Jobs • Blockchain Policy Jobs • Blockchain Full Time Jobs
Working At

Senior Java Engineer

GitHub

<html><head></head><body>GitHub's Billing team builds and maintains the systems behind how millions of developers and organizations pay for GitHub. This includes payment processing, billing infrastructure, abuse detection, and compliance. The kind of work where getting it right really matters.As part of a platform that supports everything from individual developers to Fortune 500 enterprises, you'll work on systems that process transactions at scale, integrate with broader commerce infrastructure, and directly impact GitHub's revenue and trust. It's a space where engineering decisions carry real financial and compliance consequences, and where you'll build deep expertise in a domain that's increasingly valuable across the industry.We're a remote-first, distributed team looking for someone early in their career who's curious about this space and eager to learn. You don't need to be a payments expert, but you should be excited about working on systems that handle real money, protect customers from fraud, and keep GitHub's billing experience reliable and trustworthy. Responsibilities<ul><li>Build and maintain billing and payment systems that serve millions of GitHub users.</li><li>Help detect and mitigate billing abuse, contributing to the signals and tooling that keep our platform safe.</li><li>Work across the stack, from backend services to APIs, and occasionally touch frontend where needed.</li><li>Participate in code reviews, pairing sessions, and on-call rotations. You'll learn from the team and contributing to the quality of what we ship.</li><li>Write clear, maintainable code and help keep our systems well-documented.</li><li>Use AI-assisted development tools like GitHub Copilot to work effectively and help the team figure out where they're most useful.</li><li>Collaborate with partner teams across GitHub and Microsoft on shared problems.</li></ul> QualificationsRequired Qualifications:<ul><li>2+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python<ul><li>OR Associate s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 1+ year(s) experience</li><li>OR Bachelor's Degree in Computer Science or related field</li><li>OR equivalent experience.</li></ul></li></ul>Preferred Qualifications:<ul><li>Hands-on experience with Ruby and/or Go in a production environment.</li><li>Experience with JavaScript and frontend frameworks like React.</li><li>Interest in or exposure to payments, billing systems, fraud detection, or compliance.</li><li>Experience with cloud platforms such as Azure.</li><li>Familiarity with or curiosity about AI-assisted development workflows (GitHub Copilot, LLM-based tooling).</li><li>Strong async communication skills (PRs, design docs, team discussions) and comfort working transparently in a distributed team.</li></ul></body></html>

GitHub's Billing team builds and maintains the systems behind how millions of developers and organizations pay for GitHub. This includes payment processing, billing infrastructure, abuse detection, and compliance. The kind of work where getting it right really matters.
As part of a platform that supports everything from individual developers to Fortune 500 enterprises, you'll work on systems that process transactions at scale, integrate with broader commerce infrastructure, and directly impact GitHub's revenue and trust. It's a space where engineering decisions carry real financial and compliance consequences, and where you'll build deep expertise in a domain that's increasingly valuable across the industry.
We're a remote-first, distributed team looking for someone early in their career who's curious about this space and eager to learn. You don't need to be a payments expert, but you should be excited about working on systems that handle real money, protect customers from fraud, and keep GitHub's billing experience reliable and trustworthy.

Responsibilities

Build and maintain billing and payment systems that serve millions of GitHub users.
Help detect and mitigate billing abuse, contributing to the signals and tooling that keep our platform safe.
Work across the stack, from backend services to APIs, and occasionally touch frontend where needed.
Participate in code reviews, pairing sessions, and on-call rotations. You'll learn from the team and contributing to the quality of what we ship.
Write clear, maintainable code and help keep our systems well-documented.
Use AI-assisted development tools like GitHub Copilot to work effectively and help the team figure out where they're most useful.
Collaborate with partner teams across GitHub and Microsoft on shared problems.

Qualifications
Required Qualifications:

2+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python
OR Associate s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 1+ year(s) experience
OR Bachelor's Degree in Computer Science or related field
OR equivalent experience.


Preferred Qualifications:

Hands-on experience with Ruby and/or Go in a production environment.
Experience with JavaScript and frontend frameworks like React.
Interest in or exposure to payments, billing systems, fraud detection, or compliance.
Experience with cloud platforms such as Azure.
Familiarity with or curiosity about AI-assisted development workflows (GitHub Copilot, LLM-based tooling).
Strong async communication skills (PRs, design docs, team discussions) and comfort working transparently in a distributed team.

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