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Backend Engineer

Blackweir, Cardiff💼 Full-time🗓 2026-05-12 → 2026-08-07

Core

Build and evolve C# microservices and API-driven backend services, while also developing modern React user interfaces and end-to-end features.

Role type

Senior IC backend engineer (C#/.NET/React)

Builds

API-driven microservices, scalable systems, and React-based product features

Domain

Enterprise software development

Deliverable

production ML models | product features

Required skills

C#, .NET, React, API design, microservices architecture, troubleshooting, code quality ownership

Preferred skills

Experience with legacy systems, architectural decision-making, mentoring junior developers

Technologies

C#, React, .NET

Responsibilities

Build and evolve C# microservices and API-driven backend services; Develop modern React user interfaces and end-to-end features; Troubleshoot across the stack and deliver pragmatic, customer-focused solutions; Contribute to architectural decisions and technical discussions; Support production systems and help resolve defects and performance issues; Mentor junior developers through pairing, reviews, and knowledge sharing

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