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.
The Opportunity
* Role:
Senior React Developer (Contract)
* Location:
London, UK (Hybrid)
* Duration:
9–12 Months (likely extension)
* Rate:
£675 p.d (inside ir35)
* The Mission:
Build a high-performance web interface for post-trade services, ensuring systemic resiliency and seamless integration with distributed microservices.
What You'll Do
* 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.
Your Profile
* Experience:
8+ years of software engineering experience.
* Technical Mastery:
Expert-level proficiency in
ReactJS
and
TypeScript
.
* 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.