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Senior React Developer (Banking / Trading Environment) - Warsaw - £300 - £400 Per Day
Overview:
We’re partnering with a global financial institution to hire an experienced Senior React Developer to join their Front-End Engineering team in Warsaw. You’ll work within a distributed team of 40+ UI Developers across Europe and Asia, building complex, high-performance applications in a highly transactional banking and trading environment.
This is an excellent opportunity to contribute to a cutting-edge front-end platform using React, TypeScript, and RxJS, where performance, scalability, and real-time data handling are critical.
Key Responsibilities:
- Design and develop scalable, high-performance front-end applications using React and TypeScript.
- Implement reactive programming patterns with RxJS to handle live, streaming, and transactional data.
- Collaborate with global teams (engineering, product, and UX) to deliver complex front-end solutions in a fast-paced financial environment.
- Ensure code quality through peer reviews, testing, and performance tuning.
- Contribute to architectural discussions and front-end best practices.
- Mentor junior developers and support continuous improvement across the team.
Required Skills & Experience:
- 5+ years’ experience building modern front-end applications with React and TypeScript.
- Strong background in JavaScript (ES6+), front-end build tools (Webpack, Babel, etc.).
- Hands-on experience with RxJS or similar reactive programming frameworks.
- Proven experience developing UI solutions for data-intensive, highly transactional systems (banking, trading, or similar).
- Solid understanding of performance optimisation, state management, and component design.
- Experience in agile teams and working with distributed/global teams.
- Fluent English (both written and spoken).
Desirable:
- Experience in front-office banking, electronic trading, or risk management systems.
- Familiarity with Redux, MobX, or other state-management frameworks.
- Exposure to GraphQL, WebSockets, or real-time data streams.
- Knowledge of Storybook, CI/CD, and component libraries.
Package:
- £300 - £400 Per Day
- 12 Month Contract
- 1 day a month in Warsaw.
Senior React Developer (Banking / Trading Environment) - Warsaw - £300 - £400 Per Day
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