April 8, 2026
Senior Front-End Developer (React / Next.js)
Senior • Hybrid
30,000 - 45,000 USD
Warsaw, MZ, Poland
Senior Front-End Developer (React / Next.js)
We are looking for a Front-End Developer to join a technology-focused team working on modern web applications. This role will play a key part in transforming an existing user interface into a modern, scalable front-end built with React and Next.js.
You will be responsible for delivering responsive, high-quality user interfaces and contributing to the long-term evolution of the UI platform. The position involves close collaboration with backend and data teams, as well as ownership of front-end standards and best practices within the team.
Responsibilities
Redesign and modernize an existing web interface using React and Next.js
Build reusable, maintainable UI components with TypeScript
Act as a front-end subject matter expert, supporting ongoing improvements to usability and performance
Integrate front-end applications with backend services via REST APIs (gRPC-Web knowledge is a plus)
Identify, troubleshoot, and resolve UI and performance issues
Contribute to code reviews, technical discussions, and CI/CD processes
Ensure high code quality through testing, documentation, and adherence to best practices
Required Skills & Experience
Min. 5 years of hands-on experience with React and Next.js
Strong proficiency in JavaScript/TypeScript, HTML, and CSS
Solid understanding of modern front-end architecture and development patterns
Experience working with RESTful APIs
Familiarity with front-end testing frameworks and build tools is an advantage
Experience in finances/banking - nice to have
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