> Markdown version of [/jobs/ext/2856694-senior-software-engineer-c-net](https://www.wearedevelopers.com/jobs/ext/2856694-senior-software-engineer-c-net). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Senior Software Engineer C# .NET

- **Company:** Pave Talent Partners Limited
- **Location:** York, UK
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Clean Code Principles, ASP.NET, .NET Framework, Application Programming Interfaces (APIs), Business Software, C Sharp (Programming Language), Software Quality, Continuous Integration, Relational Databases, Elasticsearch, PostgreSQL, RabbitMQ, Redis, Standard Sql, Software Engineering, Systems Architecture, Systems Integration, Windows Desktop, Windows Forms, Datadog, Kubernetes, Codebase, Graphql, Code Restructuring, Docker, Legacy Systems, Microservices
- **Published:** September 12, 2026
- **Apply:** https://www.totaljobs.com/job/senior-software-engineer-c-net/pave-talent-partners-limited-job107971889

## About the Role

* Strong commercial experience with C#, modern .NET and ASP.NET Core
 * Strong understanding of system architecture, APIs, data and integrations
 * Experience working with SQL and relational databases
 * A solid understanding of software design, testing and maintainable code
 * Experience working with large or unfamiliar codebases
 * Experience modernising or migrating legacy systems
 * An interest in, or practical experience of, AI-assisted development
 * The confidence to make technical decisions, communicate them clearly and influence others

Bonus points for: Kubernetes, Docker, PostgreSQL, Redis, Elasticsearch, GraphQL, observability tooling, CI/CD, microservices or RabbitMQ.

## Description

A well-established software business is modernising a large Windows desktop platform into a modern web product, and they're looking for a Senior .NET Developer to play a key role in that transformation.

This is a hands-on role with real influence over back-end architecture, technical direction and delivery.

You'll work across C#/.NET, APIs, system design and legacy modernisation, while helping the wider team adopt better engineering practices and make effective use of AI-assisted development.

What your typical day will look like:

 * Building complex back-end services and APIs using C#, .NET and ASP.NET Core
 * Making pragmatic architectural and technical decisions
 * Modernising functionality from a large WinForms/legacy platform
 * Working closely with Engineering, Product and technical stakeholders
 * Using AI coding tools and agents across development, testing, refactoring and migration
 * Supporting high standards around testing, security, observability and code quality
 * Investigating complex technical issues and driving them through to resolution
 * Providing technical guidance and helping other engineers develop


## Related Videos

- [Practical tips for keeping your C# code base clean](https://www.wearedevelopers.com/videos/100149-practical-tips-for-keeping-your-c-code-base-clean)
- [Building Multi-Tenant ASP.NET Core Applications: Best Practices and Real-World Solutions](https://www.wearedevelopers.com/videos/1552-building-multi-tenant-asp-net-core-applications-best-practices-and-real-world-solutions)
- [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered)
- [Reducing LLM Calls with Vector Search Patterns - Raphael De Lio (Redis)](https://www.wearedevelopers.com/videos/1714-reducing-llm-calls-with-vector-search-patterns-raphael-de-lio-redis)
- [Architectures that we can use with .NET](https://www.wearedevelopers.com/videos/935-architectures-that-we-can-use-with-net)
- [Developing ASP.NET Core Microservices with Dapr: A practical guide](https://www.wearedevelopers.com/videos/1528-developing-asp-net-core-microservices-with-dapr-a-practical-guide)

## Related Articles

- [Dev Digest 120 - Apple and peers](https://www.wearedevelopers.com/magazine/455-dev-digest-120-apple-and-peers)
- [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline)
- [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers)
- [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs)
- [Software Engineer Salary London](https://www.wearedevelopers.com/magazine/252-software-engineer-salary-london)
- [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated)