Javascript Developer

Contract – Senior JavaScript Developer (React/TypeScript) – Front Office Trading Platform

• Location: London – 1-2 Days Per Week (Can be flexible)
• Duration: 2 Years
• Industry: Global Investment Bank
• Daily Rate: £750 p/d Base Pay – £880 p/d PAYE

Overview:

Join a high-performing engineering team building a modern, real-time front-office trading platform for a global financial institution. This role focuses on delivering performant, modular, and scalable UI applications used in pricing and execution workflows.

Key Responsibilities:

• Design, develop, and maintain complex SPAs using React and TypeScript.
• Build real-time, event-driven UIs integrating with pricing and trading systems.
• Own full software lifecycle: design, implementation, testing, deployment, and L2 support.
• Collaborate with global teams (quants, product, backend, QA) in an Agile setup.
• Contribute to architectural decisions, platform evolution, and best practices.

Tech Stack:

• Core: JavaScript (ES6+), TypeScript, React, Redux, Webpack, CSS/SASS
• Architecture: Modular SPA, Micro-Frontends, Event-Driven UIs
• Protocols: REST, WebSocket
• Tooling: Git, Jira, Confluence, CI/CD (Jenkins, Docker)
• Bonus: RxJS, Java/Spring Boot, Kafka, Cassandra

You Have:

• Strong knowledge of UI performance, design patterns, and testing.
• Experience in low-latency or real-time systems.
• Exposure to financial markets, trading platforms, or derivatives (preferred).
• Strong communication, autonomy, and ownership mindset.

Bonus Points For:

• Full-stack experience (Java backend)
• Exposure to pricing engines, order management, or e-trading systems
• Background in financial services or capital markets tech

We are committed to fostering a diverse and inclusive recruitment process. We actively seek talented individuals from all backgrounds, perspectives, and experiences.

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