Strong Middle / Senior Front-end Developer

Position: Front-end Developer ( Strong Middle / Senior )

Format: Remote (Ukraine) or Hybrid (Poland)

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About the Project:

A high-load real-time fintech trading platform with dashboards, bot controls, account management, and fast-updating data tables. The system relies on WebSocket integrations, trading charts, and real-time performance.

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What You’ll Do:

 • Develop and maintain real-time dashboards and data grids

 • Integrate WebSocket streams for live updates

 • Build modular front-end architecture

 • Implement secure login and two-factor authentication

 • Optimize UI/UX responsiveness and performance

 • Collaborate with back-end developers and UI/UX designers

 • Participate in code reviews and write unit tests

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Required Skills:

 • React.js (must-have)

 • Strong experience with WebSockets and real-time data

 • Proficient in REST APIs and JSON

 • Styling with Tailwind CSS or similar frameworks

 • Experience with complex, interactive charts and dashboards

 • Real-time tables (100–500 rows updating every 200–500ms)

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Nice to Have:

 • Redux or Zustand

 • TypeScript

 • OAuth2 / JWT, 2FA

 • Web3.js, Ethers.js

 • Fintech or trading platform experience

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Tech Stack:

 • Frontend: React.js, TypeScript

 • Backend: Node.js

 • DevOps: Docker, Kubernetes

 • Trading Systems: CEX and DEX integrations (architectural level)

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Hiring Process:

 1. HR screening interview

 2. Technical interview with Front-end Tech Lead

 3. Final interview with CEO / PM