Staff Software Engineer |Lead Engineer | Principal Engineer | £120K | Hybrid - London

We're working with a high-growth, tech-driven company undergoing a major platform modernisation and are looking for a Staff Software Engineer to join their mission-critical engineering team. This is a hands-on technical leadership role with high visibility and impact across the organisation.

You'll work on large-scale systems, contributing to the design and development of modern, scalable, cloud-native .NET applications. You'll collaborate closely with platform teams, influence tech strategy, mentor engineers, and help evolve systems that serve both public-facing and internal users.

• Enhance and modernise large .NET systems for performance, reliability, and scalability
• Lead architecture and development of Back End services using C#, ASP.NET, .NET Core
• Automate infrastructure, CI/CD pipelines, and cloud operations (AWS/Azure)
• Promote engineering best practices, security, and observability
• Mentor engineers and foster a culture of continuous improvement
• Contribute to technology direction, including adoption of tools like Go and Python

• Deep expertise in C#, .NET Core, ASP.NET
• Cloud experience with AWS (Lambda, DynamoDB) or Azure + DevOps
• Proficiency with IaC tools like Terraform
• Strong grasp of modern dev methodologies and design patterns
• Exposure to containerisation and CI/CD tooling
• Bonus: Familiarity with Go, Python, React, TypeScript, Node.js

Location: Hybrid - 2 days a week in London

This is a high-impact role in a growing company where your technical voice will be heard - and acted on.

Ready to build, lead, and transform? Let's connect!