Senior/Principal Software Engineer

Senior/Principal Software Engineer / Cambridge / High-Performance Engineering Team

A high-calibre engineering team is looking for a Senior/Principal Software Engineer to help build the next generation of a large-scale cloud platform powering mission-critical applications.

This is an opportunity to join an engineering-first environment where technical excellence is genuinely valued. You’ll work alongside exceptional engineers, solve complex distributed systems challenges, and play a leading role in shaping architecture, influencing technical direction, and delivering software at scale.

What you’ll be doing:

• Designing and building high-performance services using C#/.NET and cloud-native technologies
• Leading architectural decisions across APIs, microservices, and distributed systems
• Solving complex scalability, performance, and reliability challenges across a large-scale platform
• Working closely with product and engineering teams to deliver business-critical capabilities
• Championing engineering best practices across software design, testing, security, and CI/CD
• Mentoring talented engineers and helping raise the technical bar across the wider team

What’s in it for you:

• Join a world‑class engineering team that values technical excellence and clean software design
• Tackle complex engineering challenges at genuine scale using modern cloud technologies
• High levels of ownership with real influence over architecture and technical strategy
• Hybrid working with an engineering culture built around collaboration, knowledge sharing, and continuous learning
• Outstanding career progression with clear pathways into Principal and Technical Leadership roles
• Competitive salary, excellent benefits, and the opportunity to work alongside some of the strongest engineers in the industry

What they’re looking for:

• Strong commercial experience building high-quality software with C#/.NET or similar object-oriented technologies
• Experience designing scalable APIs, microservices, and distributed systems
• Strong understanding of cloud-native architecture and modern engineering best practices
• A passion for solving difficult technical problems and building elegant, maintainable software
• Excellent communication skills and experience mentoring or leading engineers
• Someone who thrives in a collaborative, engineering-led environment with a high technical bar

Senior Software Engineer / Cambridge / High-Performance Engineering Team

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