Senior Software Engineer (.NET / React / AWS)

TL;DR

Senior Software Engineer (.NET / React / AWS): Building and scaling a modern React/Next.js application at the core of a greenfield high-traffic platform with an accent on micro-frontend architecture, .NET backend integration, and AWS deployment. Focus on API design, system integration, performant user experiences, and contributing to technical direction in a product-led squad.

Location: Manchester (Hybrid – 1–2 days per week)

£650/day (Inside IR35)

Company

Large-scale, technology-led business investing heavily in a greenfield platform build.

What you will do

• Build and scale modern React/Next.js application using micro-frontend architecture (Module Federation)
• Work closely with backend engineers on API design, data flow, and system integration
• Develop and integrate with .NET/C# backend services
• Deploy and support applications in AWS (CloudFront, S3, etc.)
• Design performant, scalable user experiences for high-traffic platform
• Stay hands-on while contributing to technical direction in your squad

Requirements

• Strong experience with React/Next.js in production environments
• Solid exposure to .NET/C# backend development (APIs, services, integrations)
• Experience with micro-frontend architectures or scalable frontend patterns
• Good understanding of AWS for application deployment
• Strong grasp of API-driven architecture and frontend/backend interaction
• Experience building scalable, high-performance platforms
• Comfortable as senior, hands-on engineer in product-led team

Culture & Benefits

• Greenfield build with no legacy constraints
• Modern engineering practices across frontend and backend
• Product-led squads with high ownership and autonomy
• Platform built at genuine scale