Staff Software Engineer (.NET, Golang, Python, NodeJS)– Greenfield Tech refresh project

Fleet (Hybrid: 2 days per week onsite) | Up to £105,000 + 10% Bonus + Excellent Benefits

Are you a passionate Staff or Principal Engineer looking to lead modernisation initiatives and shape the next generation of systems for a scaling tech-led business?

We’re working with a cutting-edge technology company that is overhauling its legacy .NET systems and moving toward a modern, cloud-native, event-driven architecture with Go and other modern software development languages. They're on the lookout for an experienced Staff Engineer, who has worked on similar modernisation and migration projects to play a pivotal role in this transformation journey.

What You’ll Be Doing:

• Lead the migration of large-scale, legacy .NET systems to a modern stack (Golang, Python, NodeJS).
• Own key architecture and platform decisions to improve system performance, reliability, and scalability.
• Champion DevOps best practices: CI/CD, automation, IaC (Terraform), observability and security.
• Collaborate across teams, build strong engineering practices, and foster a culture of continuous improvement.
• Mentor and guide engineers, shaping both tech strategy and team capability (70% hands on, 30% mentoring/leadership)

What They’re Looking For:

• Deep experience working on and leading major migration or modernisation projects.
• Strong hands-on engineering background with languages like C#/.NET, Golang, Python, or NodeJS.
• Cloud experience (AWS preferred; Azure experience also welcome), including serverless tech like Lambdas.
• Solid understanding of containerisation (Docker, Kubernetes), infrastructure as code (Terraform), and modern software design patterns.
• Exposure to front-end technologies like React, TypeScript, or Astro is a bonus.
• Proactive, collaborative mindset with the ability to influence and lead through change.

Whats on offer?

• Up to £105,000 salary + 10% discretionary bonus
• 7.5% matched pension
• 27 days holiday rising to 32 with service + bank holidays
• Free Gym
• Enhanced Maternity and Paternity
• Long service awards
• Private medical
• ​L&D Hybrid
• working model: 2 days per week onsite in Fleet, potential for flexibility.
• 30 days work-from-anywhere policy, annual pay reviews
• Work from home budget

If this sounds like you then please click apply now!

Software Engineer (.NET, Golang, Python, NodeJS)