We’re looking for a Senior Frontend Developer to join our partner’s growing R&D team and take a leading role in shaping high-impact, user-facing applications. You’ll be working with a modern stack centered around React and TypeScript, driving the evolution of their frontend ecosystem while helping migrate legacy JavaScript code to TypeScript. This is a hands-on position where you’ll craft high-performance, reliable, and elegant user experiences — while also influencing architecture decisions, improving code quality, and mentoring fellow developers in modern frontend best practices. Responsibilities * Develop, maintain, and optimize complex frontend applications using React + TypeScript * Lead the migration of existing JavaScript code to TypeScript, setting best practices and standards * Collaborate with Product, Design, and Backend teams to deliver user-facing features end-to-end * Own state management patterns with Redux and React Query, ensuring consistency and scalability * Improve performance, accessibility, and reliability across the frontend * Write clean, well-tested, and maintainable code with high test coverage * Mentor and support other developers, promoting best practices and continuous improvement * Contribute to technical discussions on architecture, tooling, and long-term frontend strategy.
Requirements * 5+ years of professional experience in frontend development * Strong expertise in React (including hooks, context, advanced component patterns) * Deep knowledge of TypeScript and experience migrating from JavaScript * Solid experience with state management (Redux, React Query, or equivalent) * Experience writing tests with frameworks like Jest, React Testing Library, or Cypress * Strong understanding of performance optimization, accessibility (a11y), and secure frontend practices * Excellent collaboration and communication skills
Will be a plus * Experience with build tools and bundlers (Webpack, Vite, Babel) * Familiarity with component libraries/design systems (Storybook, Material UI, Tailwind) * Knowledge of server-side rendering (Next.js) or micro-frontend architecture * Exposure to monitoring tools (Sentry, Datadog RUM) * Open-source contributions or prior mentorship experience
What we offer * Competitive salary and benefits package * Medical insurance * Top equipment kit * Full Remote * Collaborative and innovative work environment * Career growth and development opportunities * A chance to work with a talented and driven team of professional
About the project Our client is a fintech company tackling one of the biggest challenges for online businesses: unfair credit card disputes that threaten revenue. Using AI-powered tools, they help merchants handle chargebacks efficiently and fairly, turning a complex problem into a seamless process. With recent strategic funding, the company is growing rapidly, driven by a team of experts in fintech, eCommerce, and technology. They value innovation, practical solutions, and a mission to make online commerce more secure and predictable.
