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 a seasoned engineer who brings strong technical judgment and is still genuinely curious about learning new domains. 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>Design, develop, test and ship high-quality technical solutions that scale across multiple GitHub services.</li><li>Collaborate with cross-functional teams to define and implement innovative solutions.</li><li>Provide technical leadership, mentorship, pairing opportunities, and code reviews to encourage the growth of others.</li><li>Own and advocate for the health and quality of the systems that the team builds, including participating in on-call and first responder rotations</li><li>Write architecture briefs and proposals, carry out code experiments, and build prototypes to learn how we can achieve planetary scale with our systems.</li><li>Design and implement APIs to facilitate seamless integration between software components.</li><li>Utilize CI/CD tools to set up automated pipelines for continuous integration and delivery.</li><li>Become intimately familiar with the systems you build and take pride in writing maintainable code.</li></ul> QualificationsRequired Qualifications:<ul><li>6+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python</li><li>OR Associate s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 5+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python</li><li>OR Bachelor s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 4+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python</li><li>OR Master s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 2+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python</li><li>OR Doctorate in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field</li><li>OR equivalent experience.</li></ul>Preferred Qualifications:<ul><li>Minimum 2 years experience in one or more scripting languages (e.g., Bash, Python, or a similar language)</li><li>Minimum 2 years experience using general purpose programming languages (e.g., Go, Ruby, or a similar language).</li><li>Minimum 3 years experience with cloud environments and/or Cloud Native Compute Foundation (CNCF) concepts.</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 a seasoned engineer who brings strong technical judgment and is still genuinely curious about learning new domains. 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

Design, develop, test and ship high-quality technical solutions that scale across multiple GitHub services.
Collaborate with cross-functional teams to define and implement innovative solutions.
Provide technical leadership, mentorship, pairing opportunities, and code reviews to encourage the growth of others.
Own and advocate for the health and quality of the systems that the team builds, including participating in on-call and first responder rotations
Write architecture briefs and proposals, carry out code experiments, and build prototypes to learn how we can achieve planetary scale with our systems.
Design and implement APIs to facilitate seamless integration between software components.
Utilize CI/CD tools to set up automated pipelines for continuous integration and delivery.
Become intimately familiar with the systems you build and take pride in writing maintainable code.

Qualifications
Required Qualifications:

6+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering 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 5+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python
OR Bachelor s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 4+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python
OR Master s Degree in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field AND 2+ years experience in Software Engineering, Computer Science, or related technical discipline with proven experience maintaining and delivering production software coding in languages including, but not limited to, C, C++, C#, Java, JavaScript, Go, Ruby, Rust, or Python
OR Doctorate in Computer Science, Electrical Engineering, Electronics Engineering, Math, Physics, Computer Engineering, Computer Science, or related field
OR equivalent experience.

Preferred Qualifications:

Minimum 2 years experience in one or more scripting languages (e.g., Bash, Python, or a similar language)
Minimum 2 years experience using general purpose programming languages (e.g., Go, Ruby, or a similar language).
Minimum 3 years experience with cloud environments and/or Cloud Native Compute Foundation (CNCF) concepts.

Senior Software Engineer

Selina Finance

<html><head></head><body>We re disrupting the antiquated, paper-based mortgage market by delivering better products and a superior customer experience. In your role, you will: Responsibilities<ul><li>Help design, shape and deliver a leading FinTech product and engineering team</li><li>Contribute to the team s work with high-quality, well-tested and scalable code</li><li>Develop high-class back-end code in a microservice architecture that builds the foundation of all Selina s tech products</li><li>Support the development of the software stack (e.g. code reviews, unit tests, CI) and documentation</li><li>Work closely with our team to understand our customers needs</li><li>You ll be right in the heart of the action here at Selina. We re looking for driven, detail-oriented team players. We win by placing customers' interests first!</li></ul> About you<ul><li>Strong knowledge of Java Core, including collections, generics, streams, concurrency basics, and modern Java features.</li><li>Good understanding of object-oriented design principles and clean code practices.</li><li>Commercial experience with Spring Boot and the Spring ecosystem</li><li>Experience building REST APIs, including an understanding of HTTP fundamentals</li><li>Experience with service-to-service communication and event-driven architecture, including messaging/streaming with Apache Kafka</li><li>Experience with unit and integration testing using tools such as JUnit and Mockito (Testcontainers or WireMock is a plus).</li><li>Understanding of web application security basics, including authentication, authorization, and OAuth 2.0 concepts.</li><li>Experience working with MongoDB or other NoSQL databases, including basic data modelling and indexing.</li><li>Experience with Git and standard collaborative workflows (pull requests, code reviews, resolving conflicts).</li><li>Ability to work independently on tasks, collaborate in a team, and deliver features from design to production.</li></ul> Nice to have<ul><li>Experience with Kotlin for backend development.</li><li>Experience with Keycloak or other Identity and Access Management solutions.</li><li>Experience with observability tools such as Grafana, Loki, Prometheus, and logging/monitoring systems.</li><li>Experience with Docker and Kubernetes.</li><li>Experience with Python and FastAPI for building backend services.</li></ul></body></html>

We re disrupting the antiquated, paper-based mortgage market by delivering better products and a superior customer experience. In your role, you will:

Responsibilities

Help design, shape and deliver a leading FinTech product and engineering team
Contribute to the team s work with high-quality, well-tested and scalable code
Develop high-class back-end code in a microservice architecture that builds the foundation of all Selina s tech products
Support the development of the software stack (e.g. code reviews, unit tests, CI) and documentation
Work closely with our team to understand our customers needs
You ll be right in the heart of the action here at Selina. We re looking for driven, detail-oriented team players. We win by placing customers' interests first!

About you

Strong knowledge of Java Core, including collections, generics, streams, concurrency basics, and modern Java features.
Good understanding of object-oriented design principles and clean code practices.
Commercial experience with Spring Boot and the Spring ecosystem
Experience building REST APIs, including an understanding of HTTP fundamentals
Experience with service-to-service communication and event-driven architecture, including messaging/streaming with Apache Kafka
Experience with unit and integration testing using tools such as JUnit and Mockito (Testcontainers or WireMock is a plus).
Understanding of web application security basics, including authentication, authorization, and OAuth 2.0 concepts.
Experience working with MongoDB or other NoSQL databases, including basic data modelling and indexing.
Experience with Git and standard collaborative workflows (pull requests, code reviews, resolving conflicts).
Ability to work independently on tasks, collaborate in a team, and deliver features from design to production.

Nice to have

Experience with Kotlin for backend development.
Experience with Keycloak or other Identity and Access Management solutions.
Experience with observability tools such as Grafana, Loki, Prometheus, and logging/monitoring systems.
Experience with Docker and Kubernetes.
Experience with Python and FastAPI for building backend services.

Mid Backend Engineer (UK Remote)

Galaxy

<html><head></head><body><img class="webfeedsFeaturedVisual" src="https://cryptojobslist.com/api/og/job/vp-protocol-backend-engineer-remote-us-at-galaxy.png" width="480px"> 

 Tags: <a href="https://cryptojobslist.com">Web3 Jobs</a> • <a href="https://cryptojobslist.com/full-time">Cryptocurrency Full Time Jobs</a> • <a href="https://cryptojobslist.com/remote">Blockchain Remote Jobs</a> • <a href="https://cryptojobslist.com/developer">Web3 Developer Jobs</a> • <a href="https://cryptojobslist.com/backend">Blockchain Backend Jobs</a> • <a href="https://cryptojobslist.com/research">Cryptocurrency Research Jobs</a>Who We Are:Galaxy is a global leader in digital assets and data center infrastructure, delivering solutions that accelerate progress in finance and artificial intelligence. We believe that blockchain and digital asset innovation will transform how value moves through the world – and we’re building the products and services to make that future a reality.&nbsp;Our institutional digital assets platform spans trading, investment banking, asset management, staking, self-custody, and tokenization technology. We also invest in and operate cutting-edge data center infrastructure to power AI and high-performance computing, addressing the growing demand for scalable energy and compute in the U.S.&nbsp;We work at the intersection of finance and technology, helping institutions, startups, and developers navigate a digitally native economy. Led by CEO and Founder Michael Novogratz, our team blends deep crypto expertise with institutional experience and a shared commitment to shaping the future of Web3 and AI.&nbsp;Galaxy is headquartered in New York City, with offices across North America, Europe, the Middle East, and Asia.&nbsp;To learn more about our businesses and products, visit <a href="http://www.galaxy.com">www.galaxy.com</a>.What We Value:We are a diverse team of free thinkers, and fast movers united to help investors and creators energize the global economy. We are looking for individuals&nbsp;who&nbsp;thrive in a culture of builders and overachievers&nbsp;and&nbsp;embrace high performance, transparent feedback, and a mission-first approach. Our culture shapes our way of working and gets us where we want to be.<ul><li>Seek Excellence.</li><li>Be Selective To Be Effective.</li><li>Be Highly Aligned, Loosely Coupled.</li><li>Disagree Transparently.</li><li>Encourage Independent Decision-Making.</li><li>Build Dream Teams.</li></ul>What You’ll Do:<ul><li>Design, build, and maintain highly available, scalable, and secure blockchain products, systems and infrastructure related to our blockchain participation and custody offerings.</li><li>Collaborate with cross-functional teams to identify and implement improvements in infrastructure, monitoring, system automation, and incident response.</li><li>Identify &amp; implement solutions for your domain where process, automation or tooling can significantly improve our ability to operate our infrastructure.</li><li>Develop a present and forward looking view into what’s happening in each part of your domain and how it applies to the business. Establish and communicate views that inform leadership and organizational strategy.</li><li>Continuously research and stay up-to-date with emerging trends in the web3/blockchain space.</li><li>Identify, scope and build on new product opportunities that may bring value to the business</li><li>Debug complex distributed blockchains and protocols to improve our participation.</li><li>Implement monitoring, observability tools and best practices to ensure the health, performance, and stability of our blockchain infrastructure.</li><li>Participate in and make improvements to, domain specific on-call rotations to ensure the continued reliability and uptime of our services.</li><li>Work through others, to develop and maintain automation scripts and tools to streamline deployment, scaling, and recovery processes.</li></ul>What We’re Looking For:<ul><li>Prior software engineering or application development experience in modern programming language (.Net, Go, Rust, C/C++, Java, etc.)</li><li>Demonstrated experience working with blockchain infrastructure or strong knowledge of the blockchain domain (proof-of-stake consensus, web3, rpc, etc)</li><li>Strong concepts of custody key management, generation, HSMs and MPC technologies.</li><li>Experience or awareness in working with Chainlink systems, services or ecosystem.</li><li>Ability to script in a high-level scripting language like Python, Perl or bash coupled with an ability to identify human processes that can be scripted and automated.</li><li>Deep familiarity with compute-infrastructure systems, tooling, observability, debugging strategies along with research aptitude and a desire to never repeat the same problem twice.</li><li>Troubleshooting expertise of complex application flows which span multiple systems along with an ability to identify server, network, and application issues and apply measurable remediations.</li><li>Working knowledge of Linux systems, system performance optimization and command line tooling.</li><li>Expertise in cloud platforms (AWS, Azure, GCP) and virtualization technologies (VMWare, KVM, Docker or similar).</li><li>Hands-on experience with monitoring and observability tools (Prometheus, Grafana, ELK Stack, Datadog, LogDNA, etc.)</li><li>Conceptual knowledge of security best practices, including encryption, access control, and&nbsp;network security (firewalls, traffic filtering).</li><li>Strong written and verbal communication skills with an ability to distill information to both technical and non-technical audiences.</li><li>Strong problem solving skills and ability to identify problems, determine their root cause, and see them through to solution.</li></ul>Bonus Points:<ul><li>At-least 4 years of software engineering experience.</li><li>Hands on experience operating validator or RPC infrastructure solutions.</li><li>Experience with Kubernetes, or similar compute orchestration systems and a familiarity with container orchestration.</li><li>Skill in defining infrastructure as code with Terraform or other infrastructure orchestration tooling.</li><li>Experience participating in or reading/parsing on-chain activity.</li><li>Ability to build backend services in addition to infrastructure.</li></ul>What We Offer:<ul><li>Competitive base salary and discretionary bonus</li><li>Competitive paid time off</li><li>Company-paid health and protective benefits for employees and their eligible dependents</li><li>Free virtual coaching sessions through Headspace</li><li>Free daily snacks in-office</li><li>Opportunities to learn about the Crypto industry</li><li>Smart, entrepreneurial, and fun colleagues</li></ul>*Benefits may vary depending on location.Galaxy respects diversity and seeks to provide equal employment opportunities to all employees and job applicants for employment without regard to actual or perceived age, race, color, creed, religion, sex or gender (including pregnancy, childbirth, lactation and related medical conditions), gender identity or gender expression (including transgender status), sexual orientation, marital or partnership or caregiver status, ancestry, national origin, citizenship status, disability, military or veteran status, protected medical condition as defined by applicable state or local law, genetic information or predisposing genetic characteristic, or other characteristic protected by applicable federal, state, or local laws and ordinances.We will endeavor to make a reasonable accommodation to the known limitations of a qualified applicant with a disability unless the accommodation would impose an undue hardship on the operation of our business. If you believe you require such assistance to complete the application process or to participate in an interview, please contact Apply here 👉 <a href="https://cryptojobslist.com/jobs/vp-protocol-backend-engineer-remote-us-at-galaxy?utm_medium=RSS">VP, Protocol / Backend Engineer</a>
</body></html>

Tags: Web3 Jobs • Cryptocurrency Full Time Jobs • Blockchain Remote Jobs • Web3 Developer Jobs • Blockchain Backend Jobs • Cryptocurrency Research Jobs
Who We Are:Galaxy is a global leader in digital assets and data center infrastructure, delivering solutions that accelerate progress in finance and artificial intelligence. We believe that blockchain and digital asset innovation will transform how value moves through the world – and we’re building the products and services to make that future a r

VP, Protocol / Backend Engineer

Kubikware

<html><head></head><body><div>We are Kubikware, a digital agency with 20+ years of experience designing and developing web and mobile platforms, as well as video games, AR/VR apps, and AI/ML. We are headquartered in Miami, FL with a strong South American team, and have clients and partners in the US market of all sizes and verticals. Among other accolades, we are a 5-time Inc. 5000 Fastest Growing Companies in America honoree.</div><div> </div>We are looking to expand our amazing roster with a Senior Python, React &amp; AI Engineer, located in Latin America. You will join a fast-paced engagement focused on building and delivering a production-ready, AI-driven solution, with potential for long-term collaboration based on performance.We are looking for:<ul><li>6+ years of experience in software engineering (backend or full-stack roles)</li><li>Strong proficiency in Python (core requirement)</li><li>Solid experience with&nbsp;React</li><li>Hands-on experience building APIs and data pipelines</li><li>Experience working with LLMs or AI-driven workflows</li><li>Proven experience using AI-assisted development tools (e.g., Claude Code, Codex, or similar)</li><li>Ability to build and ship production-ready code quickly in fast-paced environments</li><li>Strong communication skills and ability to work in client-facing roles</li><li>Experience working in Agile/Scrum environments</li></ul><div>Nice to have:</div><ul><li>Experience with Azure (App Services, Blob Storage, etc.)</li><li>Background in document processing or structured data extraction</li><li>Familiarity with LLM validation patterns (e.g., LLM-as-judge)</li><li>Experience working on early-stage or fast-moving projects</li></ul><div>We offer:</div><ul><li>Fully remote position</li><li>Short-term engagement (6 weeks) with strong potential for long-term extension</li><li>Full-time&nbsp;</li><li>Collaboration with US-based teams (Central Time overlap required)</li><li>Compensation in US Dollars</li></ul>If you are as excited to learn more as we are to work with you, please submit your resume and let’s be in touch!Please, no agencies or C2C.</body></html>

We are Kubikware™, a digital agency with 20+ years of experience designing and developing web and mobile platforms, as well as video games, AR/VR apps, and AI/ML. We are headquartered...

Python & React Engineer with AI (Remote, Latam)

Lemon.io

<html><head></head><body>Are you a talented Senior AI Engineer/Architect 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_ai_engineer/architect_jun_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 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 75 countries.</li>
</ul>
We have several AI-related roles; here are some of them.
Requirements - AI Engineer:
<ul>
<li>3+ years of commercial experience applying AI to practical technology solutions</li>
<li>A solid understanding of Python is a must; experience with other programming languages commonly used in AI is a plus</li>
<li>Experience with Vector Databases, Pinecone or Weaviate is required</li>
<li>2+ years of experience with large language models (LLMs), RAG, LangChain is mandatory</li>
</ul>
Requirements - AI Agent Architect:
<ul>
<li>3+ years of experience with Python</li>
<li>3+ years of experience with LLM</li>
<li>Experience with Multi-agent systems architecture, AI agent orchestration, AI telemetry is a must.</li>
</ul>
Requirements - AI Automation Architect:
<ul>
<li>1+ year of experience with Workflow Automation and Webhooks</li>
<li>3+ years with SQL is a must</li>
<li>Familiarity with AI API integration and Claude Cowork is a must</li>
<li>Knowledge of Make.com/n8n/Zapier</li>
</ul>
Other&nbsp;requirements ​:
<ul>
<li>Strong technical skills: as a Senior AI Engineer/Architect, 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_ai_engineer/architect_jun_2026_job_ad" rel="nofollow" target="_blank">Lemon.io</a> community!
NOT YOUR TECH STACK?
We have a variety of projects, so if you have 4+ years of commercial software development experience and are proficient in Site Reliability Engineering, Platform Engineering, React &amp; Python, React &amp; Golang, React &amp; Java, React &amp; Ruby, PHP &amp; Vue, Vue &amp; Node.js, React &amp; .NET, Android &amp; iOS, Blockchain (Web3/Solana), Angular &amp; Node.js, Vue &amp; .NET, Python &amp; Vue, DevOps with Azure DevOps, MLOps, Data Science, Angular &amp; PHP, Angular &amp; .NET, Symfony &amp; React, Symfony &amp; Vue, Symfony &amp; Angular, Symfony &amp; JavaScript &amp; Next.js &amp; TypeScript, Data Analysis, React &amp; PHP, Data Engineering, Project Management, React Native &amp; Node, Data Annotation, React &amp; Node.js, Svelte &amp; Python, Svelte &amp; Node.js, Svelte &amp; TypeScript, Rust, Shopify &amp; JavaScript, Vue &amp; Nuxt, PHP &amp; Laravel, UI/UX Design, Animation, Graphic Design, React &amp; Node &amp; React Native, .NET &amp; C#, Unreal Engine &amp; C++, Python &amp; LLM, Unity, or Machine Learning Engineering, we would be happy to connect with you and match you with a project that fits your experience.
We work with developers from 75+ countries across Europe, Latin America, North America (the U.S. and Canada), selected countries in Asia (Japan, Singapore, South Korea, the Philippines, Indonesia, Malaysia, Vietnam, Thailand, and Israel), Oceania (Australia, New Zealand, and Papua New Guinea), and Africa (including Morocco and South Africa).
&nbsp;</body></html>

Are you a talented Senior AI Engineer/Architect 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 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'll ma

Senior AI Engineer / Architect

TechMagic

<html><head></head><body>We are looking for a Senior Python Engineer to join our client – the worldwide frontrunner in identity security. By emphasising intelligent privilege controls, they deliver the most extensive security solutions for any identity within business applications, distributed workforces, hybrid cloud environments, and throughout the entire DevOps lifecycle.&nbsp;In this role you will be using AWS serverless architecture, AWS CDK &amp; Python to design, develop, test, secure &amp; deploy services from planning to production. The team works in full collaboration with security architects, product managers and other development teams.What We’re Looking For<ul><li>4+ years of experience in Python development</li><li>Desire to use new technologies and understand them in depth</li><li>Passionate about code design and high-quality code</li><li>Proactive by nature; internal drive for excellence and improvement</li><li>Good communication skills, fluent in English, good writing skills</li><li>Autodidact, like to learn new things and share with the team</li></ul>Bonus Points For<ul><li>Experience in enterprise scale application development in cloud/SaaS environment (AWS serverless architecture is a definite advantage)</li><li>Experience with AWS/CDK/Python</li><li>Solid understanding of security and networking implementation and best practices</li><li>Experience with micro service/event-oriented design and development</li><li>Experience with modern CI/CD tools, in particular GitHub, Jenkins and Artifactory</li></ul>What You’ll Do<ul><li>Deliver E2E features and enhancements while keeping the highest quality and security standards</li><li>Practice all software development life cycle in agile oriented environment</li><li>Research and implement sophisticated Cyber security mechanisms</li><li>Explore new technologies and tools to keep us using cutting edge solutions</li><li>Help guide and contribute to feature design and implementation to bring the product to the next level</li><li>Participate in continuous and iterative engineering cycles with emphasis on code quality, supportability, scalability, and performance</li></ul>Work ScheduleFull-time working day, full remote or work from our offices in Lviv and KyivInterview Stages<ol><li>HR interview with our recruiter</li><li>Technical Interview</li><li>Interview with Client’s PM</li></ol><h2>Our Benefits</h2><ul><li>Projects with modern stack&nbsp;</li><li>Work from anywhere (fully remotely or in our office)&nbsp;</li><li>Paid vacations and sick-leaves, additional days-off, relocation bonus</li><li>Wellness: Medical insurance/ sport compensation/ health check-up+flu vaccination at your choice</li><li>Education: regular tech-talks, educational courses, paid certifications, English classes</li><li>Fun: own football team, budget for team-lunches, branded gifts</li><li>One of the best IT employers in Lviv based on DOU rating</li></ul>Recruiter <a href="https://www.linkedin.com/in/anastasiya-matveyeva-882095147/" rel="nofollow ugc noopener" target="_blank">Anastasiya Matveyeva</a></body></html>

We are looking for a Senior Python Engineer to join our client &#8211; the worldwide frontrunner in identity security. By emphasising intelligent privilege controls, they deliver the most extensive security...

Senior Python Developer

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 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;
The Role:
&nbsp;
We are looking for a Senior Python Developer (Fullstack, Backend-Heavy) to join one of our high-growth client teams as a core software architect. In this role, you will be responsible for designing, scaling, and maintaining high-throughput backend systems while having the fullstack dexterity to build out the corresponding frontends.
&nbsp;
You will handle everything from high-performance asynchronous API design and background task orchestration to state management on the client side. This is an ideal role for an engineer who loves the clean syntax and processing capabilities of Python but values the completeness of delivering a seamless end-to-end user experience.
&nbsp;
What we are looking for:
&nbsp;
<ul>
<li>5+ years of production experience with modern Python, with a deep understanding of advanced concepts (metaclasses, generators, decorators) and asynchronous programming (asyncio).</li>
<li>Mastery of FastAPI for high-performance microservices or Django (including Django REST Framework) for robust, feature-rich monolithic web applications.</li>
<li>Solid, hands-on experience with modern frontend development using TypeScript and React.js (or Vue.js) to connect backends to reactive interfaces.</li>
<li>Strong background in handling long-running background tasks and event-driven processing using Celery, Redis, or RabbitMQ.</li>
<li>Deep knowledge of relational databases (PostgreSQL preferred) including query profiling, optimization, indexing, and object-relational mapping (SQLAlchemy or Django ORM).</li>
<li>Experience containerizing applications with Docker and deploying services into cloud infrastructure (AWS or Azure) via automated CI/CD pipelines.</li>
<li>Dedication to writing highly testable code, utilizing pytest for comprehensive unit and integration test coverage.</li>
</ul>
&nbsp;
Nice-to-have:
&nbsp;
<ul>
<li>Familiarity with vector databases (Pinecone, ChromaDB) or integrating LLM workflows.</li>
<li>Experience with frontend state management libraries (Redux Toolkit, Zustand).</li>
<li>Knowledge of Infrastructure as Code tools like Terraform.</li>
<li>Understanding of clean architecture and domain-driven design (DDD).</li>
</ul>
&nbsp;
Responsibilities:
&nbsp;
<ul>
<li>Design, implement, and deploy robust Python backends alongside clean, responsive frontend applications.</li>
<li>Design self-documenting, clean, and secure RESTful or GraphQL APIs that serve as predictable contracts for the frontend.</li>
<li>Profile, benchmark, and optimize Python applications to eliminate performance bottlenecks and improve memory management.</li>
<li>Conduct detailed, constructive peer code reviews, championing type-hinting, PEP 8 standards, and structural best practices.</li>
<li>Collaborate closely with Product Managers, UI/UX designers, and cross-functional engineers to break down complex requirements into technical milestones.</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 Python Developer (Fullstack, BE-Heavy)

<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;
The Role:
&nbsp;
We are looking for a&nbsp;Senior AI Engineer&nbsp;to lead the development and scaling of our LLM-powered solutions. While your foundation is in Python, this role is specifically designed for an expert who understands the nuances of the generative AI lifecycle—from prompt engineering and RAG architecture to fine-tuning and production-grade deployment. You will be responsible for transforming raw model capabilities into robust, reliable, and scalable backend services.
&nbsp;
What we are looking for:
&nbsp;
<ul>
<li>Expert-level Python skills with a deep understanding of asynchronous programming and backend architecture.</li>
<li>Proven experience building and deploying production-level applications using Large Language Models (LLMs).</li>
<li>Strong experience with SQL and NoSQL databases, specifically optimized for high-dimensional vector search.</li>
<li>Familiarity with deploying AI models in cloud environments (AWS, GCP, or Azure) and managing CI/CD for AI services.</li>
<li>A "first-principles" approach to solving the unique challenges of non-deterministic AI outputs</li>
<li>Experience with fine-tuning open-source models using techniques like LoRA or QLoRA.</li>
<li>Knowledge of agentic frameworks and autonomous AI agents.</li>
<li>A background in traditional NLP (Spacy, NLTK) or classic Machine Learning.</li>
</ul>
&nbsp;
Responsibilities:
&nbsp;
<ul>
<li>Architect and implement complex AI workflows using frameworks like&nbsp;LangChain,&nbsp;LlamaIndex, or&nbsp;Haystack.</li>
<li>Design and optimize Retrieval-Augmented Generation (RAG) pipelines, including vector database management (Pinecone, Weaviate, or Milvus) and advanced indexing strategies.</li>
<li>Evaluate and implement strategies for model selection (OpenAI, Anthropic, or Open Source like Llama 3) based on latency, cost, and performance requirements.</li>
<li>Develop high-performance Python backends (FastAPI or Flask) to serve AI features to our global user base.</li>
<li>Build robust evaluation frameworks to measure LLM accuracy, reduce hallucinations, and monitor production performance using tools like&nbsp;LangSmith&nbsp;or&nbsp;Arize Phoenix.</li>
<li>Work closely with product and engineering teams to identify high-impact AI opportunities and navigate the technical trade-offs of generative AI.</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 AI Engineer (LLM)

<html><head></head><body><h2>About us:</h2>
&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;
<h2>The Role:</h2>
&nbsp;
We are looking for a Senior Python Developer for one of our clients. You are a perfect candidate if you are growth-oriented, you love what you do, and you enjoy working on new ideas to develop exciting products.
&nbsp;
<h3>What we are looking for:</h3>
&nbsp;
<ul>
<li>
<h4>5+ years of experience building products with Python and Django.</h4>
</li>
<li>
High proficiency in SQL with experience using databases like PostgreSQL.
</li>
<li>
Experience scaling cloud infrastructures with Docker or Kubernetes is a plus.
</li>
<li>
Experience managing cloud infrastructures, specifically AWS or GCP.
</li>
<li>
You follow the best practices and conventions.
</li>
<li>
Relevant experience in CI/CD and related tools.
</li>
<li>
Ability to work with minimal supervision.
</li>
<li>
Intermediate-advanced English level.
</li>
<li>
You can communicate well with both technical and non-technical clients.
</li>
<li>
Time zone: CET (+/- 3 hours). We are unable to consider applications from candidates in other time zones.
</li>
</ul>
&nbsp;
<h3>Responsibilities:</h3>
&nbsp;
<ul>
<li>
Ability to build libraries and frameworks of reusable efficient code.
</li>
<li>
Competence in designing and implementing low-latency, stable and performing applications.
</li>
<li>
Capacity to effectively collaborate with other team members and stakeholders remotely.
</li>
<li>
Ability to implement data protection systems.
</li>
<li>
Competence in data storage solutions.
</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>

Senior Backend Developer (Python)

Anyone AI

<html><head></head><body>Anyone AI is recruiting skilled Python Developers to work on a project with a leading AI lab. Responsibilities<ul><li>Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing</li><li>Write clear natural-language specifications and reference implementations</li><li>Develop and extend unit and integration test suites</li><li>Review peer-generated tasks for correctness, clarity, and realism</li><li>Identify edge cases, ambiguities, and potential failure modes</li><li>Ensure alignment between specifications, code, and expected outputs</li></ul>Contributors will design and evaluate realistic software engineering tasks, including bug resolution, feature implementation, refactoring/migration, and test generation. Work includes both creating complex coding scenarios and reviewing peer submissions for quality and accuracy. Requirements<ul><li>Advanced professional written proficiency in English</li><li>3–7 years of professional software engineering experience</li><li>Strong proficiency in Python and JavaScript/TypeScript; working knowledge of Java, C#, or Go</li><li>Backend or full stack development experience in production systems</li><li>Experience with testing frameworks (e.g., pytest, Jest, JUnit, xUnit, Go testing)</li><li>Proven ability to debug and navigate large, multi file codebases</li><li>Experience with code reviews, refactoring, and production migrations</li></ul>Engagement: Part-time, project-based expert evaluation workWork Type: RemoteThis is a project-based consultant role. Consultants will be paid on a per-project basis; hourly rates are estimates based on anticipated completion time. Consultants control their own schedule, provide their own tools, and may simultaneously provide services to other vendors/employers (subject to those vendors allowances).</body></html>

Anyone AI is recruiting skilled Python Developers to work on a project with a leading AI lab.

Responsibilities

Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing
Write clear natural-language specifications and reference implementations
Develop and extend unit and integration test suites
Review peer-generated tasks for correctness, clarity, and realism
Identify edge cases, ambiguities, and potential failure modes
Ensure alignment between specifications, code, and expected outputs

Contributors will design and evaluate realistic software engineering tasks, including bug resolution, feature implementation, refactoring/migration, and test generation. Work includes both creating complex coding scenarios and reviewing peer submissions for quality and accuracy.

Requirements

Advanced professional written proficiency in English
3–7 years of professional software engineering experience
Strong proficiency in Python and JavaScript/TypeScript; working knowledge of Java, C#, or Go
Backend or full stack development experience in production systems
Experience with testing frameworks (e.g., pytest, Jest, JUnit, xUnit, Go testing)
Proven ability to debug and navigate large, multi file codebases
Experience with code reviews, refactoring, and production migrations

Engagement: Part-time, project-based expert evaluation work
Work Type: Remote
This is a project-based consultant role. Consultants will be paid on a per-project basis; hourly rates are estimates based on anticipated completion time. Consultants control their own schedule, provide their own tools, and may simultaneously provide services to other vendors/employers (subject to those vendors allowances).

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