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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Experienced Full Stack .NET Engineers - **Company:** Biller Genie - **Location:** Belfast, UK - **Experience:** Experienced - **Salary:** £52,874.0 - **Contract:** Permanent contract - **Skills:** ASP.NET, HTML, Java (Programming Language), JavaScript (Programming Language), .NET Framework, Artificial Intelligence, Amazon Web Services, Microsoft Azure, Bootstrap (Software), C Sharp (Programming Language), Cascading Style Sheets (CSS), Cloud Computing, Computer Programming, Continuous Integration, Database Development, Software Design Patterns, Entity Framework, JQuery, Team Foundation Server, Model View Controller (MVC), Object-Oriented Software Development, Systems Development Life Cycle, Software Engineering, Subversion, Strategies of Testing, Web Services, .NET Core, Git, Build Management, Information Technology, Codebase, Front End Software Development, Code Restructuring, Software Version Control, Serverless Computing, Web Api - **Published:** August 5, 2026 - **Apply:** https://www.adzuna.co.uk/jobs/details/5826534905 ## About the Role * BSc or MSc in Computer Science / related qualification OR commercial experience of developing in C#, Java or other OO programming languages * Minimum 5 years of hands-on commercial experience programming on the .NET platform using C#, including ASP.NET (MVC) * Experience with Design Patterns, refactoring, OO Design and related areas * Practical hands-on experience with AI coding assistants and agentic engineering workflows, and a genuine appetite to work primarily through agents - owning architecture, review, and quality rather than typing every line * Exposure to building web services using Web API * An understanding of database design and development * Hands-on experience with HTML, JavaScript, CSS including jQuery * Strong attention to detail and work ethic * Strong analytical and problem-solving skills * Excellent communication (both written and verbal) and interpersonal skills * Experience of cloud technologies such as Azure/AWS/GCP * Previous experience working with source control tools (TFS, SVN, or GIT) * Legal right to work in the UK Desirable Criteria: * Experience with Azure Functions and Queues * Experience building custom agent skills, harnesses, MCP servers, or prompt libraries * Experience defining evals, guardrails, or review practices for AI-generated code * Experience in testing methodologies * Experience of LEAN software development practices * Knowledge of CI/CD systems and implementation practices * Hands-on experience with front-end frameworks such as Bootstrap * Knowledge on .NET Core and Entity framework Code First migrations * Proficient with Claude or Claude Code * Experience in Financial services industry ## Description Position Overview: We are seeking experienced AI-enabled .NET full-stack engineers who can quickly understand our existing codebase and significantly contribute to the development of complex, innovative solutions in our fast-paced fintech environment. As a key member of our engineering team, you will take ownership of significant features, driving them from conception to deployment. We need a versatile 'Swiss Army Knife'-a engineer who is comfortable across the entire SDLC, from architectural design and implementation to testing and deployment. Your experience and expertise will be vital in delivering high-quality, robust solutions. Join our growing team and make a substantial impact on our platform!, * Design & build future-proof solutions to support growing business needs while thoroughly considering the system impact * Work closely with our senior engineers to develop solutions from idea to implementation by estimating, planning, tracking and managing progress, risks, and dependencies. * Gather and refine requirements, and release software in a timely fashion * Be adaptive and strike a good balance between speed and efficiency * Work with our technical support team to identify, reproduce, and remediate bug tickets * Build and deliver features through agentic tooling - designing, iterating on, and improving our custom skills, agents, and harnesses as part of the work * Contribute prompts, skills, and workflow improvements back to the team so our AI-enabled developer experience compounds * Perform other duties required by Management ## Related Videos - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [The Resilience of the World Wide Web](https://www.wearedevelopers.com/videos/1281-the-resilience-of-the-world-wide-web) - [WeAreDevelopers LIVE - the weekly developer show with Chris Heilmann and Daniel Cranney](https://www.wearedevelopers.com/videos/1309-wearedevelopers-live-the-weekly-developer-show-with-chris-heilmann-and-daniel-cranney) - [Agentic employees in world's most downloaded FinTech app](https://www.wearedevelopers.com/videos/100123-agentic-employees-in-world-s-most-downloaded-fintech-app) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) - [Meta Harnesses: What the JS Framework Wars Teach Us About What Is Next for AI Agents](https://www.wearedevelopers.com/videos/100353-meta-harnesses-what-the-js-framework-wars-teach-us-about-what-is-next-for-ai-agents) ## Related Articles - [The 12 Best Jobs for Software Engineers](https://www.wearedevelopers.com/magazine/401-the-12-best-jobs-for-software-engineers) - [Fullstack Developer Salary UK](https://www.wearedevelopers.com/magazine/251-fullstack-developer-salary-uk) - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs) - [Data Engineer Salary UK](https://www.wearedevelopers.com/magazine/253-data-engineer-salary-uk)