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Senior Software Engineer

📍 Location
Stevenage
⏰ Job Type
Full-time
📅 Posted
June 24, 2026

About the Role

Senior Software Engineer

Based in Stevenage

Salary up to £66,000 + Bonus, Overtime, Pension

Real-time simulation software. A modern stack. Engineering that actually matters.

This isn't a keep the legacy system limping along job. You'd be building new simulation software from the ground up, software that tests how some of the most advanced defence technology in the world performs before it ever leaves the ground.

If you're fluent in C# (.NET 9) and TypeScript, comfortable across modern frontend frameworks, and you genuinely like owning a problem from UI to distributed backend, this is worth five minutes of your time.

What you'd be doing:

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Designing and building new features in C# and TypeScript, across Svelte, Angular, Vue or React

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Architecting backend systems and working across SQL and NoSQL databases

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Running Linux-based CI/CD pipelines (GitLab-CI/Jenkins) for containerised dep...

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