Sanderson - Javascript Developer

Developer is needed in London, United Kingdom.

Client: Sanderson

Location: London, United Kingdom

Contract: Contractor

Job Description

Contract - Senior JavaScript Developer (React/TypeScript) for a Front Office Trading Platform located in London. The role requires 1-2 days in the office (with flexibility), lasts for 2 years, and is within the Global Investment Bank industry. The daily rate is £750 p/d Base Pay, rising to £880 p/d PAYE.

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

Key Responsibilities

• Design, develop, and maintain complex Single Page Applications (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

Requirements

• 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.

Diversity and Inclusion

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