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Senior Software Engineer (C# / .Net)

LineTenLondon, United Kingdom
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We 2 80 99re hiring a Senior Software Engineer who treats software as a craft, not a checklist. You 2 80 99ll join a small, high-trust team where ownership is expected, curiosity is encouraged, and outcomes matter more than activity. This is not a ticket-factory role: you 2 80 99ll be expected to think critically, challenge assumptions, design robust solutions, and take responsibility for their long-term success.

You 2 80 99ll work across backend services, distributed systems and frontend integrations, with a strong focus on correctness, maintainability and architectural clarity. You 2 80 99ll also use AI-assisted development tools responsibly, understanding that speed only matters when paired with strong design, testing and review discipline.


How You 2 80 99ll Work

  • Operate with high ownership in a low-process environment
  • Proactively look for what can be improved rather than waiting for direction
  • Value correctness, clarity and maintainability over 9cit just works 9d
  • Work outside strict role boundaries when needed, without feeding burnout culture
  • Communicate technical decisions clearly and push back constructively when required

Core Technical Skills

  • C# / .NET 8+, Entity Framework Core, async/await, MediatR / CQRS
  • Strong understanding of distributed systems: consistency models, event-driven patterns, idempotency, race conditions
  • Experience with Redis caching, Azure Blob Storage, and data-modelling trade-offs
  • API design: RESTful contracts, versioning, webhooks, long-running operations (202 Accepted patterns)
  • Real-time & frontend integration: SignalR / WebSockets, SPA frameworks (Vue / Nuxt or similar), TypeScript

What Good Looks Like

  • You leave systems clearer, more correct, and easier to evolve
  • Problems are solved at the right level, not patched over
  • Trade-offs are explicit and understood
  • Other engineers trust your judgement and the quality of your code

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FAQ

Is the Senior Software Engineer (C# / .Net) position at LineTen remote?
Yes. This role was posted on Remote Frontend Jobs, a job board that lists exclusively fully remote positions.
When was this Senior Software Engineer (C# / .Net) job posted?
This listing was posted on May 11, 2026 and is still open for applications.
How do I apply for the Senior Software Engineer (C# / .Net) position at LineTen?
Use the apply button on this page — it takes you directly to the employer’s application page.

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