Senior Software Engineer (React.js/Node.js)

About Proxify

Proxify is a developer-focused network built to match talent with remote opportunities. Joining means becoming part of a vetted network where you can explore available options with top international companies in the USA, Sweden, Germany, the Netherlands, and beyond.

We believe that talent has no borders and value skills and experience above all else. Since our launch, Proxify has connected over 5,000 talented developers land their dream remote job, at over 1,200 companies.

The Role

We are looking for Senior Software Developers with strong React experience to join our fast-growing Network. You will play a key role in building modern web applications, collaborating with cross-functional teams, and helping shape the future of user experiences across various platforms.

This is a long-term, full-time remote engagement. You'll have the opportunity to work with cutting-edge technologies and deliver impactful features in real products.

Main responsibilities

• Architect, develop, and maintain high-quality web applications using React and Next.js
• Develop and maintain backend logic, APIs, and server-side functionality using Node.js
• Optimize application performance to ensure scalability, maintainability, and a seamless user experience across devices and browsers
• Contribute to frontend and Next.js architecture decisions, focusing on modular design and reusable UI patterns
• Write clean, maintainable, and testable code aligned with modern engineering standards
• Troubleshoot and debug issues, proactively improving functionality across both client and server layers
• Engage in agile workflows, providing input on sprints, backlog refinement, and continuous improvement
• Collaborate closely with designers, product managers, and backend engineers to deliver intuitive and responsive user interfaces
• Participate actively in code reviews, knowledge sharing sessions, and contribute to team best practices
• Stay up-to-date with emerging frontend technologies, frameworks, and best practices

Requirements

• 5+ years of demonstrable, production-level experience developing and architecting applications with React and its broader ecosystem
• 3+ years of hands-on experience with Next.js, including server-side rendering, routing, and performance optimization
• 3+ years of experience with Node.js for building server-side logic, APIs, and backend integrations
• Deep knowledge of JavaScript (ES6+), HTML5, CSS3, and modern CSS-in-JS or preprocessor solutions
• Experience with state management libraries (e.g., Redux, Zustand, Recoil) and understanding of their trade-offs
• Familiarity with modern build tools like Webpack, Vite, or equivalent
• Strong understanding of RESTful APIs, asynchronous operations, and frontend-backend integration
• Experience with unit and integration testing (e.g., Jest, React Testing Library)
• Good English communication skills and the ability to work in an agile environment

Nice to have

• Experience with backend technologies, databases, cloud services, and any tech stack beyond JavaScript
• Hands-on experience with TypeScript and building modular, reusable components using design systems, component libraries, and scalable UI patterns
• Knowledge of accessibility and performance optimization best practices
• Understanding of CI/CD pipelines and deployment workflows
• Familiarity with GraphQL, gRPC, or other modern API paradigms.
• Contributions to open-source projects and developer communities
• Experience in fast-paced startup environments or cross-functional teams
• Passion for creating exceptional user experiences and visually compelling interfaces

Why work remotely with Proxify?

• Accelerate your tech career - Discover exclusive long-term remote engagements at the world's most interesting product companies
• Find your dream role - Skip the typical recruitment roadblocks and biases with personally matched engagements
• Gain more freedom - All Proxify roles are 100% remote, no more long commutes and being restricted to the local job market
• Speedy application - You only need to apply to Proxify once, and, if successful, we’ll recommend you to jobs matching your profile. No more endless edits of your resume!