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Senior Frontend Developer 

Full Time

Remote

Job Description

We are looking for a Senior Frontend Developer to build the client-side of a new P2P payment platform, including the trading board / order book, personal cabinet, deal interface, and real-time chat. You will work on data-intensive, real-time interfaces where performance, reliability, and security are critical, and play a key role in shaping the frontend architecture from an early stage.

About the Client

Our client is building a new P2P payment system from the ground up — a fintech product enabling secure, fast, and scalable peer-to-peer transactions. The company is focused on creating reliable payment infrastructure, combining modern architecture with strong transactional guarantees to serve users at scale. 

What You Will Do

  • Develop the client-side of the platform: order book / trading board, personal cabinet, deal flow interface, and real-time chat.

  • Build and maintain real-time data updates using WebSockets / gRPC-Web.

  • Design and manage complex application state using Zustand / Redux Toolkit.

  • Build reusable, well-structured components and maintain a scalable frontend architecture using React and Next.js.

  • Ensure high performance and responsiveness of data-heavy, real-time UI (order books, live updates, notifications).

  • Implement client-side security best practices (XSS/CSRF protection, secure token storage and handling).

  • Collaborate closely with backend engineers to define API contracts and real-time data flows.

  • Participate in code reviews, contribute to frontend architecture decisions, and help establish best practices across the team.

  • Write clean, well-typed, maintainable TypeScript code.

  • Take ownership of frontend features from design through production, ensuring quality and reliability.

What We Are Looking For

  • Strong hands-on experience with TypeScript, React, and Next.js.

  • Experience with WebSockets / gRPC-Web for real-time data updates.

  • Solid experience managing complex application state (Zustand, Redux Toolkit).

  • Understanding of client-side security fundamentals (XSS, CSRF, secure token storage).

  • Experience building data-intensive, real-time interfaces (trading platforms, dashboards, chat applications, or similar) is a strong plus.

  • Good understanding of performance optimization techniques for React applications.

  • Ability to collaborate closely with backend teams and contribute to API design discussions.

  • Strong attention to detail and a product-oriented mindset.

  • Upper-Intermediate English level or higher (written and spoken) is a plus.

  • Prior experience in fintech, trading platforms, or high-load transactional products is a plus.

What You Can Expect

  • Opportunity to build the frontend of a payment platform from the ground up and shape its architecture.

  • Career growth opportunities with the potential to grow into a Lead Frontend Developer role.

  • Close collaboration with backend and product teams, with real influence over key technical and UX decisions.

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