Principal Engineer in St Helens, St. Helens
Posted by Maxwell Bond
£90,000 – £100,000 a year
St Helens · Permanent
Principal Developer
St Helens / Warrington
Hybrid
Picture this...
You're joining a business at the start of something new. A completely greenfield project, the freedom to make key technical decisions and the opportunity to build a platform from the ground up.
We're looking for a hands-on technical leader to take ownership of the architecture, lead a team of engineers and help shape how modern software is built using AI.
What's on offer?
- Build a brand-new platform without the constraints of legacy systems.
- Own architectural decisions and technical direction.
- Lead and mentor a team of backend and data engineers.
- Work with modern AI coding tools such as Claude Code, Cursor and GitHub Copilot.
- Tackle interesting challenges around large-scale data, distributed systems and real-time processing.
Who are we looking for?
This could suit an established Principal or Staff Engineer, Technical Architect, or an experienced Lead/Senior Developer ready to step up.
You'll ideally bring:
- Strong C#, .NET and Azure experience.
- Experience designing scalable, data-intensive systems.
- Knowledge of microservices, distributed systems and event-driven architecture.
- Exposure to Python and data engineering.
- Experience leading technical decisions and using AI coding agents.
- Experience with AWS, streaming data or machine learning would be a bonus.
Are you a Senior, Lead or Principal Engineer looking for your next challenge? I'd be keen to have a conversation
Application opens at the source listing. Free for jobseekers.