Senior React Developer

Are you a seasoned Frontend Engineer who thrives on building high-performance systems for the global financial markets? We are looking for a Senior React Developer to lead a front-end transformation for a global leader in financial infrastructure.

In this role, you will be responsible for rewriting and refactoring mission-critical UI applications—including Margin and Collateral Managers—integrating them into a unified, strategic workspace platform.

• Location: London, UK (Hybrid)
• Duration: 9–12 Months (likely extension)
• The Mission: Build a high-performance web interface for post-trade services, ensuring systemic resiliency and seamless integration with distributed microservices.

• Modernize Infrastructure: Rewrite existing UI applications using strategic workspace components to create a unified portal with a common look and feel.
• Architect for Scale: Design frontends that interact with scalable distributed APIs in an AWS environment.
• Uphold Excellence: Champion clean code and SOLID principles while meeting rigorous "quality gates" for systems handling up to 50 million messages per second.
• Collaborate: Partner closely with Java backend teams to ensure seamless interaction across the financial data ecosystem.

• Experience: 8+ years of software engineering experience.
• Technical Mastery: Expert-level proficiency in ReactJS and Type Script .
• Architecture: Proven ability to design frontends for scalable, distributed microservices.
• Domain Knowledge (Bonus): Understanding of collateral management for bilateral and cleared OTC derivatives is highly beneficial.