Full Stack Developer (React & C#) at Platinum Group, London/Remote, 9 Months, £Contract Rate

Full Stack (React & .NET) Developer - 9 months Contract

Location: London/Hybrid

About the Role:

Our capital markets practice is seeking a skilled and motivated Full Stack Developer with strong experience in React and .NET technologies and a passion for building scalable, cloud-native applications to work with a leading investment bank.

You will be responsible for designing, developing, and maintaining both Front End and Back End components of our clients enterprise-grade solutions, with a strong emphasis on Azure cloud services.

Split is 80% Front End - 20% Back End - Mainly UI Focused.

2-3 Days a week on site in London.

Key Responsibilities

• Refactor and enhance the data ingestion engine to improve flexibility, configurability, and auditability
• Build and maintain independent data pipelines for multiple HR systems (Workday, FieldGlass, VNDLY)
• Develop and extend Front End UI (React/Node.js) to improve operational visibility
• Support and enhance field mapping configurations for onboarding new data sources
• Contribute to validation logic and outbound data transformation to downstream systems.
• Explore and implement automated testing approaches (currently manual)
• Collaborate closely with the Technical Architect and wider team in an agile.

Technical Environment

• Back End: C#, .NET, Azure Functions
• Front End: React, Node.js (with C# APIs)
• Cloud: Microsoft Azure
• AI Tooling: GitHub Copilot, Claude (AI-assisted development is actively used)

Required Skills & Experience

• Strong full-stack development experience with a Front End focus (React/Node.js)
• Solid Back End experience with C#/.NET
• Experience working with data integration, ETL processes, or data pipelines
• Understanding of data transformation, validation, and system integration patterns
• Ability to work across both Front End and Back End as required
• Comfortable working in a fast-paced, evolving environment