Senior Full Stack Developer (React / .NET)

Adecco

Full-time computer-and-mathematical
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Location
London, London, United Kingdom
Posted
June 03, 2026

Job Description

Senior Full Stack Developer (React / .NET)

📍 London (Hybrid) | 📅 6 Months | 💼 Inside IR35

Our client, a leading global investment banking client is looking for a Senior Full Stack Developer with a strong front-end focus (React/JavaScript) to support the build-out of a new Engineering CoE.

Key Skills

React.js, JavaScript/TypeScript (essential, front-end heavy)
C# / .NET Core backend development
Microservices, APIs, and modern architecture
CI/CD, cloud (Azure preferred)
Strong engineering practices (code quality, testing, reusable components)

Desirable

Python or Power BI
Financial services experience

Role

Build scalable full stack applications with front-end emphasis
Develop APIs and contribute to engineering frameworks & best practices
Work within a fast-paced, global environmentIf the role aligns with your experience please apply with your updated CV