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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Software Developer - **Company:** Advanced Secure Technologies - **Location:** Saint Mellons, UK (Remote available) - **Experience:** Expert - **Salary:** £55,000.0 - £65,000.0 - **Contract:** Permanent contract - **Skills:** .NET Framework, Multitier Architecture, Unit Testing, Microsoft Azure, C Sharp (Programming Language), Software as a Service, Code Review, Elasticsearch, Open Web Application Security, Commercial Software, RabbitMQ, Redis, Software Tools, Blockchain, Secure Coding, SQL Databases, Test-Driven Development (TDD), Blazor, Event Driven Architecture, Kubernetes, Docker, Microservices - **Published:** May 21, 2026 - **Apply:** https://uk.indeed.com/viewjob?jk=39f51235620f09f6 ## About the Role Do you have experience in Test-driven development?, Are you an accomplished senior software developer with a proven track record in .NET?, * Proven experience operating successfully at senior developer/engineer level within commercial software teams, making strong hands-on technical contributions as a senior individual contributor. * 7+ years' commercial experience delivering modern C# .NET solutions. * Strong commitment to engineering best practices, including writing clean, maintainable and testable code, with experience applying unit and integration testing standards within modern development teams. * Experience of Clean Architecture or similar modern approaches, such as hexagonal or onion architecture, beyond traditional N-tier designs. * Strong problem-solving skills, attention to detail, excellent organisation and clear communication skills, with the ability to collaborate effectively across diverse engineering teams and the wider business. * Experience mentoring, guiding and supporting other developers, helping them grow through collaboration, technical guidance and knowledge sharing. Bonus points for: * Working with enterprise-scale software, microservices, event-driven architecture or SaaS product development. * Experience with TDD, DDD, secure coding/OWASP practices, Azure DevOps, CI/CD pipelines and cloud platforms like Azure. * Experience with some of the tech we use: .NET Blazor, EF Core, SQL, Redis, Elasticsearch, RabbitMQ, Docker, Kubernetes or Blockchain. * Experience using AI tools to improve developer effectiveness, team productivity and the quality or speed of software delivery. ## Description * Play a key role in the design and delivery of new features and platform improvements using .NET 10 and other modern technologies, contributing as a senior individual contributor within one of our collaborative engineering teams. * Share ideas, solve complex technical problems, and help shape the future technical direction, architecture and engineering standards of our products. * Take ownership of team sprint delivery, facilitating sprint activities, coordinating priorities, resolving blockers and helping ensure releases and wider project deliverables remain on track and delivered successfully. * Support and mentor other developers through technical guidance, collaboration, code reviews and sharing best practice, while also supporting their career development and contributing to a collaborative, high-performing engineering culture., We're an office-based team because our culture thrives on collaboration and hands-on support, especially as we grow quickly and onboard new team members. While we don't offer fully remote or fixed hybrid work, we're flexible when life happens - ad hoc home working is always an option. ## Related Videos - [Blazor Unleashed: The Future of .NET Web Development](https://www.wearedevelopers.com/videos/1564-blazor-unleashed-the-future-of-net-web-development) - [Navigating the Corporate Jungle: Life as a Developer in a large Company](https://www.wearedevelopers.com/videos/621-navigating-the-corporate-jungle-life-as-a-developer-in-a-large-company) - [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) - [Docker Compose: Rediscovered](https://www.wearedevelopers.com/videos/1978-docker-compose-rediscovered) - [Accelerating Authentication Architecture: Taking Passwordless to the Next Level](https://www.wearedevelopers.com/videos/733-accelerating-authentication-architecture-taking-passwordless-to-the-next-level) - [Docker build without Docker](https://www.wearedevelopers.com/videos/100114-docker-build-without-docker) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Dev Digest 121 - AI goes offline](https://www.wearedevelopers.com/magazine/456-dev-digest-121-ai-goes-offline) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Where To Find Software Engineering Jobs](https://www.wearedevelopers.com/magazine/396-where-to-find-software-engineering-jobs) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk)