Crossing Hurdles

Backend Developer | $65/hr Remote

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 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>

Senior AI Engineer (LLM)

<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 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 Fullstack Ruby on Rails Developer&nbsp;to join one of our high-growth client teams. In this role, you will be a key driver of the application's lifecycle, writing clean, idiomatic Ruby code to build robust backend features while ensuring a smooth, highly interactive frontend user experience.
You will help the client leverage the "Rails way" to ship features quickly, without sacrificing long-term maintainability, testability, or performance. This is an ideal position for a developer who appreciates the elegant architecture of Rails but understands how to optimize database queries, scale background workers, and deliver a modern interface.
&nbsp;
&nbsp;
What we are looking for:
<ul>
<li>5+ years of production experience building and scaling applications using Ruby on Rails (Rails 6/7) and modern Ruby 3.x features.</li>
<li>Strong proficiency with frontend assets in Rails. This includes deep experience with Hotwire (Turbo/Stimulus) OR modern SPA frameworks like React.js or Vue.js connected via a Rails API.</li>
<li>Deep knowledge of PostgreSQL or MySQL, specifically in writing complex ActiveRecord queries, optimizing indexes, and managing database migrations safely at scale.</li>
<li>Extensive experience managing background jobs, race conditions, and heavy data processing using Sidekiq and Redis.</li>
<li>A strict habit of writing maintainable test suites using RSpec, Capybara, or FactoryBot to ensure high test coverage and stable deployments.</li>
<li>Proven track record of designing, securing, and documenting clean RESTful APIs.</li>
<li>Solid understanding of Git workflows, Docker containerization, and asset compilation pipelines (Propshaft, Webpacker, or Vite Ruby).</li>
</ul>
&nbsp;
&nbsp;
Nice-to-Have:
<ul>
<li>Experience migrating legacy Rails applications to newer versions.</li>
<li>Familiarity with cloud platforms (AWS, Heroku, or Render) and CI/CD pipelines.</li>
<li>Understanding of domain-driven patterns within Rails to keep large codebases decoupled.</li>
<li>Knowledge of web security best practices (OWASP Top 10, cross-site scripting prevention).</li>
</ul>
&nbsp;
&nbsp;
Responsibilities:
<ul>
<li>Design, architect, and implement clean, test-driven features across both the backend and frontend layers.</li>
<li>Profile and optimize slow queries, eliminate N+1 query bugs, and optimize frontend rendering paths to keep application response times low.</li>
<li>Participate in rigorous peer code reviews, championing idiomatic Ruby patterns, security protocols, and robust architectural choices.</li>
<li>Act as a technical sounding board for Product and Design teams, helping evaluate the technical feasibility of upcoming features.</li>
<li>Assist in maintaining and improving deployment workflows to ensure reliable, zero-downtime releases.</li>
</ul>
&nbsp;
What we offer:
&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 Fullstack Ruby on Rails Developer

<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)

<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 Senior Backend Rust Developer to join one of our high-growth client teams as a technical lead for their core systems. In an era where performance and memory safety are non-negotiable, you will be responsible for architecting and building low-latency, high-throughput services that serve as the backbone of the client's platform.
&nbsp;
You will lead the transition from legacy services to high-performance Rust microservices, leveraging the ownership model to eliminate data races and ensure memory safety. This is a role for a developer who loves "getting close to the metal" while maintaining the productivity of a modern web stack.
&nbsp;
What we are looking for:
&nbsp;
<ul>
<li>Professional experience building production-grade applications in Rust. You should have a deep understanding of ownership, borrowing, lifetimes, and the Send/Sync traits.</li>
<li>Strong experience with the Tokio ecosystem and asynchronous programming patterns.</li>
<li>Proficiency with modern Rust web frameworks such as Axum, Actix-web, or Rocket.</li>
<li>Proven ability to design distributed systems using gRPC, Protocol Buffers, and message brokers like Kafka or RabbitMQ.</li>
<li>Advanced knowledge of SQL (PostgreSQL preferred) and experience with asynchronous ORMs or query builders like sqlx or Diesel.</li>
<li>Hands-on experience with containerization (Docker/K8s) and deploying Rust services to cloud environments (AWS/Azure/GCP).</li>
<li>Experience with profiling tools (e.g., flamegraph, valgrind) to identify and resolve bottlenecks in high-load scenarios.</li>
<li>Strong verbal and written English; comfortable leading technical discussions with cross-functional stakeholders.</li>
<li>Time zone: CET (+/- 3 hours). We are unable to consider applications from candidates in other time zones.</li>
</ul>
&nbsp;
Nice-to-Have:
&nbsp;
<ul>
<li>Experience with WebAssembly (Wasm) for edge computing or browser-based logic.</li>
<li>Knowledge of Infrastructure as Code (Terraform/Pulumi).</li>
<li>Familiarity with "Unsafe Rust" and when (and when not) to use it.</li>
<li>Background in low-level systems languages like C or C++.</li>
</ul>
&nbsp;
Responsibilities:
&nbsp;
<ul>
<li>Design and implement highly performant backend services that are robust, maintainable, and type-safe.</li>
<li>Lead the shift toward memory-safe distributed systems, ensuring zero-cost abstractions are utilized effectively.</li>
<li>Conduct rigorous code reviews, emphasizing idiomatic Rust ("Rustacean" style) and safety best practices.</li>
<li>Architect secure and scalable RESTful and gRPC APIs for consumption by frontend and mobile applications.</li>
<li>Maintain high code quality through comprehensive unit, integration, and property-based testing.</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 Rust Developer

<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 WordPress Developer to join one of our high-growth client teams. In this role, you will be the technical architect for complex web applications, pushing the boundaries of what WordPress can deliver in an enterprise environment.
You aren't just customizing themes; you are building bespoke Gutenberg blocks, managing Headless WordPress architectures via WPGraphQL, and optimizing high-traffic database schemas. You will lead the development lifecycle from custom backend logic to high-performance, interactive frontend components, ensuring every line of code is scalable, secure, and maintainable.
&nbsp;
<h4>What we’re looking for:</h4>
&nbsp;
<ul>
<li>Expert-level knowledge of PHP 8.x and the WordPress core (Hooks, Filters, REST API, and WP-CLI).</li>
<li>Deep experience with React.js, specifically for building custom Gutenberg blocks and dynamic editor interfaces.</li>
<li>Proven ability to build custom themes (FSE/Block-based) and sophisticated plugins from scratch without the bloat of page builders.</li>
<li>Expert-level understanding of REST API and WPGraphQL for decoupled/headless setups and third-party integrations.</li>
<li>Solid experience with MySQL optimization, object caching (Redis/Memcached), and achieving perfect Core Web Vitals.</li>
<li>Proficiency with Webpack/Vite, Composer, and Git-based deployment workflows.</li>
<li>A commitment to WordPress Coding Standards and building accessible (WCAG compliant) user experiences.</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 skills:</h4>
&nbsp;
<ul>
<li>Experience with the Roots stack (Sage, Bedrock, Trellis).</li>
<li>Familiarity with Next.js or Gatsby for headless frontend implementations.</li>
<li>Advanced knowledge of WooCommerce at the enterprise level.</li>
<li>Experience with unit testing frameworks (PHPUnit) and E2E testing (Playwright).</li>
</ul>
&nbsp;
<h4>Responsibilities:</h4>
&nbsp;
<ul>
<li>Lead the development of custom, end-to-end WordPress solutions, from backend logic to interactive frontend components.</li>
<li>Build advanced, user-friendly block patterns and custom blocks that empower content editors.</li>
<li>Support the transition from legacy "monolithic" WordPress setups to modern block-based or headless architectures.</li>
<li>Optimize server-side and client-side performance to ensure lightning-fast load times for high-traffic sites.</li>
<li>Conduct thorough code reviews, promoting a culture of technical excellence.</li>
</ul>
&nbsp;
<h4>What we offer: &nbsp;</h4>
&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 WordPress Developer (Fullstack)

Upscrolled

<html><head></head><body><div class="job_listing-description job-overview col-md-10 col-sm-12">
 <h2 class="widget-title widget-title--job_listing-top job-overview-title">Overview</h2>
 Backend Engineer
Level:&nbsp;Senior(L3)/ Lead (L4)&nbsp;&nbsp; • &nbsp;&nbsp;Location:&nbsp;Remote (Europe preferred) GMT/GMT+1 working hours&nbsp; &nbsp;• &nbsp;&nbsp;Employment Type:&nbsp;&nbsp;Full-time through EOR&nbsp;&nbsp; • &nbsp;&nbsp;Reporting to:&nbsp;Head of Engineering
&nbsp;
About UpScrolled
UpScrolled is an independent social media platform built on a simple idea: people should control what they see, say, and share online.
We exist because we were tired of social media that treats people like products. So we’re building the alternative: a platform where your data stays yours, your voice actually reaches your followers, and your feed belongs to you, not an algorithm.
We’re a small, fast-moving team with a big mission and a community of millions of UpScrollers who joined because they were done waiting for someone else to fix social media. We need people who care about that as much as we do. Come scroll differently with us.
&nbsp;
About the Role
We’re hiring a technical owner on the UpScrolled engineering team. UpScrolled is building a social media platform at pace, and the backend systems that power it need to be scalable, reliable, and built to last. You’ll lead the design, development, and ownership of our core platform services — combining hands-on development with technical leadership.
This is not a management-track role that has drifted away from the code. You’ll be building alongside the team, driving architectural decisions, and mentoring engineers — all at the same time. You’ve done this in a startup or high-growth environment before and you know how to hold a high engineering bar without slowing the team down.
&nbsp;
What You’ll Do
<ul>
<li>Lead the design, development, and deployment of scalable backend services and applications built with TypeScript and C#/.NET</li>
<li>Take full ownership of major engineering initiatives — from architecture and technical design through implementation, deployment, and long-term operation</li>
<li>Design and implement robust REST APIs supporting high-volume traffic and critical business workflows</li>
<li>Architect and maintain cloud-native, serverless systems on AWS designed for reliability, scalability, and operational simplicity</li>
<li>Mentor engineers through code reviews, design discussions, and ongoing technical guidance</li>
<li>Lead cross-team technical initiatives, helping break down complex problems and coordinate delivery across engineers</li>
<li>Improve engineering practices including automated testing, CI/CD pipelines, and operational reliability</li>
<li>Collaborate with product, design, and infrastructure teams to deliver maintainable and scalable systems</li>
<li>Identify and resolve performance, reliability, and scaling challenges across platform services</li>
<li>Participate in on-call coverage; respond to incidents, troubleshoot backend services, and support issue resolution with the team</li>
</ul>
&nbsp;
Technical Expertise
Backend &amp; Platform
<ul>
<li>Server-side JavaScript / TypeScript architecture</li>
<li>REST API design and implementation</li>
<li>High-availability backend services</li>
<li>Real-time systems and notification architectures</li>
</ul>
Cloud &amp; Infrastructure
<ul>
<li>AWS cloud services</li>
<li>Cloud-native and serverless architecture</li>
<li>Infrastructure as Code (Terraform, AWS CDK, CloudFormation)</li>
<li>CI/CD pipelines using GitHub Actions</li>
</ul>
Databases
<ul>
<li>PostgreSQL</li>
<li>MongoDB</li>
</ul>
Engineering Practices
<ul>
<li>Test-driven development</li>
<li>Deployment automation</li>
<li>Performance optimization</li>
<li>Observability and operational reliability</li>
</ul>
Nice to Have
<ul>
<li>Experience building frontend applications with React and/or Next.js</li>
<li>Experience developing cross-platform mobile applications using Flutter</li>
</ul>
&nbsp;
What Success Looks Like
<ul>
<li>Core platform systems are reliable, performant, and well-understood by the team</li>
<li>Engineers you’ve mentored are shipping with more confidence and fewer architectural mistakes</li>
<li>Technical decisions have clear rationale and are documented — no black boxes</li>
<li>The engineering team is building on a foundation that scales, not one that needs to be rebuilt</li>
</ul>
&nbsp;
What You Are
<ul>
<li>10+ years of professional software engineering experience with strong command of JavaScript and TypeScript</li>
<li>Someone with proven ownership of large technical initiatives or platform components</li>
<li>A demonstrated leader who mentors engineers and guides architectural decisions — not just a senior IC</li>
<li>Experienced designing and operating scalable cloud-native systems on AWS in production</li>
<li>Strong experience with PostgreSQL, MongoDB, and modern data persistence patterns</li>
</ul>
&nbsp;
What You Are Not
<ul>
<li>Someone who has drifted fully into engineering management and no longer wants to write code</li>
<li>Someone who makes architectural decisions in isolation without bringing the team along</li>
<li>Someone who treats reliability and observability as post-launch concerns</li>
</ul>
&nbsp;
Compensation
We believe in transparent compensation. Our salaries vary depending on work location. Please see our zones and ranges below.
Netherlands, Ireland, UK, Germany:
Senior:&nbsp;67,916€/60,429£
Lead:&nbsp;81,499€/72,515£
Spain, Portugal, Poland:
Senior:&nbsp;52,426€
Lead:&nbsp;62,911€
We hire in all European countries and many others around the globe. If your location is not listed above, please still apply, and note your location. We will share salary information during the first interview if you are selected.
We offer health insurance to all employees, along with paid time off (vacation, sick, parental, etc.) in compliance with local labor regulations in the employee’s country of residence.
&nbsp;
Equal Opportunity
UpScrolled is an equal opportunity employer. We are committed to building a team that reflects the diversity of the people our product serves. We do not discriminate on the basis of race, color, religion, gender identity or expression, sexual orientation, national origin, disability, age, or any other protected characteristic. If you need accommodations at any stage of the hiring process, please reach out — we will work with you.
&nbsp;
Application Process
We will accept applications for this position until&nbsp;April 16, 2026. Once the application period closes, we review the entire candidate pool before moving forward with interviews.
Our process typically looks like this: a 30-minute introductory call with People Operations, followed by at least two additional interviews with the team. We aim to respond to all applicants within 5 business days of the application window closing.
If you need any adjustments to our process, please let us know.
Work Authorization
Candidates must have the legal right to work in their stated location. UpScrolled does not currently offer visa sponsorship.
Tagged as: JavaScript, next.js, parental leave, React, senior, Typescript
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Overview
Backend Engineer
Level:&nbsp;Senior(L3)/ Lead (L4)&nbsp;&nbsp; • &nbsp;&nbsp;Location:&nbsp;Remote (Europe preferred) GMT/GMT+1 working hours&nbsp; &nbsp;• &nbsp;&nbsp;Employment Type:&nbsp;&nbsp;Full-time through EOR&nbsp;&nbsp; • &nbsp;&nbsp;Reporting to:&nbsp;Head of Engineering
&nbsp;
About UpScrolled
UpScrolled is an independent social media platform built on a simple idea: people should control what they see, say, and share online.
We exist because we were tired of social media that treats people like products. So we’re building the alternative: a platform where your data stays yours, your voice actually reaches your followers, and your feed belongs to you, not an algorithm.
We’re a small, fast-moving team with a big mission and a community of millions of UpScrollers who joined because they were done waiting for someone else to fix social media. We need people who care about that as much as we do. Come scroll differently with us.
&nbsp;
About the Role
We’re hiring a technical owner on the UpScrolled engineering team. UpScrolled is building a social media platform at pace, and the backend systems that power it need to be scalable, reliable, and built to last. You’ll lead the design, development, and ownership of our core platform services — combining hands-on development with technical leadership.
This is not a management-track role that has drifted away from the code. You’ll be building alongside the team, driving architectural decisions, and mentoring engineers — all at the same time. You’ve done this in a startup or high-growth environment before and you know how to hold a high engineering bar without slowing the team down.
&nbsp;
What You’ll Do
Lead the design, development, and deployment of scalable backend services and applications built with TypeScript and C#/.NET
Take full ownership of major engineering initiatives — from architecture and technical design through implementation, deployment, and long-term operation
Design and implement robust REST APIs supporting high-volume traffic and critical business workflows
Architect and maintain cloud-native, serverless systems on AWS designed for reliability, scalability, and operational simplicity
Mentor engineers through code reviews, design discussions, and ongoing technical guidance
Lead cross-team technical initiatives, helping break down complex problems and coordinate delivery across engineers
Improve engineering practices including automated testing, CI/CD pipelines, and operational reliability
Collaborate with product, design, and infrastructure teams to deliver maintainable and scalable systems
Identify and resolve performance, reliability, and scaling challenges across platform services
Participate in on-call coverage; respond to incidents, troubleshoot backend services, and support issue resolution with the team
&nbsp;
Technical Expertise
Backend &amp; Platform
Server-side JavaScript / TypeScript architecture
REST API design and implementation
High-availability backend services
Real-time systems and notification architectures
Cloud &amp; Infrastructure
AWS cloud services
Cloud-native and serverless architecture
Infrastructure as Code (Terraform, AWS CDK, CloudFormation)
CI/CD pipelines using GitHub Actions
Databases
PostgreSQL
MongoDB
Engineering Practices
Test-driven development
Deployment automation
Performance optimization
Observability and operational reliability
Nice to Have
Experience building frontend applications with React and/or Next.js
Experience developing cross-platform mobile applications using Flutter
&nbsp;
What Success Looks Like
Core platform systems are reliable, performant, and well-understood by the team
Engineers you’ve mentored are shipping with more confidence and fewer architectural mistakes
Technical decisions have clear rationale and are documented — no black boxes
The engineering team is building on a foundation that scales, not one that needs to be rebuilt
&nbsp;
What You Are
10+ years of professional software engineering experience with strong command of JavaScript and TypeScript
Someone with proven ownership of large technical initiatives or platform components
A demonstrated leader who mentors engineers and guides architectural decisions — not just a senior IC
Experienced designing and operating scalable cloud-native systems on AWS in production
Strong experience with PostgreSQL, MongoDB, and modern data persistence patterns
&nbsp;
What You Are Not
Someone who has drifted fully into engineering management and no longer wants to write code
Someone who makes architectural decisions in isolation without bringing the team along
Someone who treats reliability and observability as post-launch concerns
&nbsp;
Compensation
We believe in transparent compensation. Our salaries vary depending on work location. Please see our zones and ranges below.
Netherlands, Ireland, UK, Germany:
Senior:&nbsp;67,916€/60,429£
Lead:&nbsp;81,499€/72,515£
Spain, Portugal, Poland:
Senior:&nbsp;52,426€
Lead:&nbsp;62,911€
We hire in all European countries and many others around the globe. If your location is not listed above, please still apply, and note your location. We will share salary information during the first interview if you are selected.
We offer health insurance to all employees, along with paid time off (vacation, sick, parental, etc.) in compliance with local labor regulations in the employee’s country of residence.
&nbsp;
Equal Opportunity
UpScrolled is an equal opportunity employer. We are committed to building a team that reflects the diversity of the people our product serves. We do not discriminate on the basis of race, color, religion, gender identity or expression, sexual orientation, national origin, disability, age, or any other protected characteristic. If you need accommodations at any stage of the hiring process, please reach out — we will work with you.
&nbsp;
Application Process
We will accept applications for this position until&nbsp;April 16, 2026. Once the application period closes, we review the entire candidate pool before moving forward with interviews.
Our process typically looks like this: a 30-minute introductory call with People Operations, followed by at least two additional interviews with the team. We aim to respond to all applicants within 5 business days of the application window closing.
If you need any adjustments to our process, please let us know.
Work Authorization
Candidates must have the legal right to work in their stated location. UpScrolled does not currently offer visa sponsorship.
Tagged as: JavaScript, next.js, parental leave, React, senior, Typescript
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Senior Backend Engineer (Remote in Europe)

Stellar Development Foundation

<html><head></head><body><img class="webfeedsFeaturedVisual" src="https://cryptojobslist.com/api/og/job/backend-engineer-integrations-apis-at-stellar-development-foundation-1.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">Cryptocurrency Remote Jobs</a> • <a href="https://cryptojobslist.com/developer">Web3 Developer Jobs</a> • <a href="https://cryptojobslist.com/backend">Cryptocurrency Backend Jobs</a> • <a href="https://cryptojobslist.com/research">Cryptocurrency Research Jobs</a>Interested in working on cutting-edge blockchain technology and creating equitable access to the global financial system? Since 2014, the mission-driven team at the Stellar Development Foundation (SDF) has helped fuel the tremendous growth of the Stellar blockchain network, an open-source platform that operates at high-scale today. Developers and companies around the world build on it, and the SDF team is expanding to support the rapidly growing and changing Stellar ecosystem.About the Project &amp; Team:At the SDF, a small team of roughly 8 engineers is incubating a novel distributed systems prototype. Not a blockchain as you know it, something new. This is a rare opportunity for a zero-to-one build where much of the infrastructure and tooling does not exist yet. You will be building it.To be clear: this is not a maintenance role for our existing network, nor is it an academic research project. We are actively building a high-performance platform designed to handle real value.We operate as a fast-moving, highly technical team with no layers of management. You will work directly with the protocol architect and core systems engineers to take this completely greenfield project to production. If you thrive on the urgency of a new launch and want the agility of an early-stage startup with the stability of SDF, this is the place to be.About the Role:We need a Backend/Systems Engineer who owns the critical layer between our core infrastructure and the outside world. The public API, indexing, data pipelines, and everything that makes the system usable by developers and partners.Today, nobody owns this layer end-to-end. Pieces exist, but the JSON-RPC endpoint, transaction status tracking, analytics pipelines, and data services are a greenfield waiting for an owner. This role benefits enormously from someone who has already been through a complex infrastructure launch (like a testnet or mainnet). You know what breaks, what gets skipped and regretted later, and what "production-grade" actually means for infrastructure that handles real value.What the First Few Months Look Like:<ul><li>Month 1: Understand the system architecture end-to-end. Get the full stack running locally. Own the JSON-RPC spec and start building.</li><li>Month 2-3: Working RPC endpoint. Submit a transaction, query its status, check a balance. Indexer serving the block explorer. Transaction lifecycle fully instrumented.</li><li>Beyond: Data pipelines, partner integrations, API hardening, load testing. Bake in the production readiness that comes from having done this before.</li></ul>In this role, you will:<ul><li>Public API Layer: Design and build the JSON-RPC endpoints that external tools, SDKs, and wallets use to communicate with the core network (transaction submission, status queries, account state).</li><li>Transaction Lifecycle: Own the full path from client to consensus and back. Status tracking, error reporting, and timeout handling.</li><li>Indexer &amp; Query Backend: Build the data backend that powers the block explorer, partner integrations, and historical state queries.</li><li>Data &amp; Observability: Build out analytics pipelines (e.g., BigQuery population) and implement robust metrics and event logging using tools like Prometheus, Clickhouse, and Sentry.</li><li>Cross-Functional Impact: Work across service boundaries, getting comfortable reading code in components you don't own to understand how they behave.</li></ul>You have:<ul><li>Strong systems or backend programming experience in Rust, C++ or both (our codebase uses both).</li><li>Proven track record of designing and building robust RPC/API services that handle real-world, high-scale traffic.</li><li>Deep understanding of database architecture, indexing, and query patterns.</li><li>You are a builder who takes ownership of production infrastructure, not just prototypes.</li></ul>Bonus Points if:<ul><li>Prior experience building or operating blockchain infrastructure (nodes, RPC layers, indexers) in production.</li><li>Experience with a testnet or mainnet launch.</li></ul>We offer competitive pay with a base salary range for this position of $140,000 - $210,000 depending on job-related knowledge, skills, experience, and location. In addition, we offer grants along with the following perks and benefits:USA Benefits/Perks:<ul><li>Competitive health, dental &amp; vision coverage with most plans covered at 100% for the employee + any dependents</li><li>Flexible time off + 15 company holidays including a company-wide holiday break</li><li>Generous paid parental leave for all parents, plus paid pregnancy disability leave for birthing parents</li><li>Gym reimbursement ($80 per month)</li><li>Life &amp; ADD (up to $50K)</li><li>Short &amp; Long term disability</li><li>401K with 4% match</li><li>Health &amp; Dependent Care FSA Accounts</li><li>Commuter benefits with $250/month employer contribution</li><li>Health Savings Account (HSA) with monthly employer contribution</li><li>Family building benefits through Kindbody</li><li>Wellbeing benefits (One Medical, Rightway, Headspace)</li><li>L&amp;D budget of $1,500/year</li><li>Daily lunch and snacks in office</li><li>Company retreats</li></ul>About StellarStellar is more than a blockchain. Powered by a decentralized, fast, scalable, and uniquely sustainable network made for financial products and services and a thriving and passionate ecosystem that includes a non-profit organization driven by a mission, Stellar is paving the path to unlock the world’s economic potential through blockchain technology. Built with speed and low costs in mind, the Stellar network provides builders and financial institutions worldwide a platform to issue assets, and to send and convert currencies in real time creating real world utility. Founded in 2014, the Stellar Development Foundation (SDF) supports the continued development and growth of the Stellar network and also serves the ecosystem of NGOs, corporations, universities, small businesses, governments, and solo entrepreneurs building on the Stellar network through tooling, funding and strategic collaborations. Together, Stellar is where blockchain meets the real world.About the Stellar Development FoundationThe Stellar Development Foundation (SDF) is a non-profit organization focused on working with and supporting change-makers to create equitable access to the global financial system through blockchain technology. SDF provides grants, investments, funding, and other awards to builders and organizations. SDF also develops resources and tooling on the Stellar network to help unlock real world utility. As a nonprofit foundation, SDF puts the health of the Stellar network and the Stellar ecosystem and its mission above all else.We look forward to hearing from you!Privacy PolicyBy submitting your application, you are agreeing to our use and processing of your data in accordance with our <a href="https://www.stellar.org/privacy-policy?locale=en" rel="noopener noreferrer nofollow ugc" target="_blank">Privacy Policy</a>.SDF is committed to diversity in its workforce and is proud to be an equal opportunity employer. SDF does not make hiring or employment decisions on the basis of race, color, religion, creed, gender, national origin, age, disability, veteran status, marital status, pregnancy, sex, gender expression or identity, sexual orientation, citizenship, or any other basis protected by applicable local, state or federal law.Apply here 👉 <a href="https://cryptojobslist.com/jobs/backend-engineer-integrations-apis-at-stellar-development-foundation-1?utm_medium=RSS">Backend Engineer, Integrations &amp; APIs</a>
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Tags: Web3 Jobs • Cryptocurrency Full Time Jobs • Cryptocurrency Remote Jobs • Web3 Developer Jobs • Cryptocurrency Backend Jobs • Cryptocurrency Research Jobs
Interested in working on cutting-edge blockchain technology and creating equitable access to the global financial system? Since 2014, the mission-driven team at the Stellar Development Foundation (SDF) has helped fuel the tremendous growth of the Stellar blockchain network, an open-source platform that operates at high-scale today. Develo

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