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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Full Stack Engineer (AI) - **Company:** Insurtech - **Location:** Crawley, UK - **Experience:** Expert - **Salary:** £95,000.0 - **Contract:** Permanent contract - **Skills:** .NET Framework, Artificial Intelligence, Automation of Tests, Unit Testing, C Sharp (Programming Language), Software as a Service, Code Review, Programming Tools, Commercial Software, Software Engineering, Technical Debt, Backend, AngularJS, Front End Software Development, Software Coding - **Published:** August 12, 2026 - **Apply:** https://itjobpro.co.uk/job/senior-full-stack-engineer-ai ## About the Role Strong commercial software engineering experience with C# and .NET. Full-stack development experience, ideally including Angular or another modern frontend technology. Experience developing modern cloud/SaaS applications. Strong understanding of software design, testing, architecture and engineering quality. Commercial experience using AI coding assistants and/or agentic development tools as part of real software delivery. Able to demonstrate experience beyond basic Copilot usage, including how AI has been incorporated into your development workflow. Confidence reviewing AI-generated solutions and knowing when to trust, challenge, correct or override the output. Comfortable writing clear specifications/prompts that both engineers and AI agents can work from. Strong engineering judgement and the confidence to challenge how something has been designed or implemented. Comfortable operating in an environment where AI engineering practices are evolving quickly. Collaborative approach with the ability to share knowledge and raise engineering practices across a team.Why should I apply? ## Description We're working with an established InsurTech business that is entering an exciting stage in how it builds software. The team is moving beyond simply using AI coding assistants and towards a genuinely agentic software development lifecycle - where engineers increasingly define intent, orchestrate AI, review its output and apply the engineering judgement needed to deliver high-quality production software. You'll join an established engineering team working on a mature workflow automation platform used by 100+ clients. The product already has AI capabilities in production, with a wider roadmap focused on expanding how AI is incorporated into both the product itself and the way the engineering team develops software., Design and deliver end-to-end product features across a C#/.NET backend and modern frontend environment. Work closely with Product to define, refine and deliver the product roadmap. Use AI coding and agentic tools as part of day-to-day software engineering and delivery. Help evolve how AI is incorporated across specifications, development, PRs, code reviews, testing and QA. Critically review AI-generated code for quality, correctness, security, maintainability and architectural fit. Help turn successful individual AI practices into repeatable approaches that benefit the wider engineering team. Write and maintain unit tests, test frameworks and automated test cases. Identify defects, performance bottlenecks and technical debt. Contribute to the continued development of AI functionality within the product. Work in an environment where the focus is increasingly moving from simply writing code towards specification, design, orchestration and engineering judgement.Required Skills ## Related Videos - [Are Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data) - [How to Stop Choosing JavaScript Frameworks and Start Living](https://www.wearedevelopers.com/videos/118-how-to-stop-choosing-javascript-frameworks-and-start-living) - [Developing the Backend with Stefan Lingler, CTO at Shpock](https://www.wearedevelopers.com/videos/100360-developing-the-backend-with-stefan-lingler-cto-at-shpock) - [The AI-Ready Stack: Rethinking the Engineering Org of the Future](https://www.wearedevelopers.com/videos/1706-the-ai-ready-stack-rethinking-the-engineering-org-of-the-future) - [Build a CI/CD pipeline to automate code reviews and ensure code quality](https://www.wearedevelopers.com/videos/349-build-a-ci-cd-pipeline-to-automate-code-reviews-and-ensure-code-quality) - [Stand alone components in Angular](https://www.wearedevelopers.com/videos/656-stand-alone-components-in-angular) ## Related Articles - [Navigating the AI Shift](https://www.wearedevelopers.com/magazine/629-navigating-the-ai-shift) - [How to Become an AI Engineer](https://www.wearedevelopers.com/magazine/331-how-to-become-an-ai-engineer) - [What is Software Engineering in the Age of AI?](https://www.wearedevelopers.com/magazine/640-what-is-software-engineering-in-the-age-of-ai) - [What is Agentic Programming and Why Should Developers Care?](https://www.wearedevelopers.com/magazine/625-what-is-agentic-programming-and-why-should-developers-care) - [Transforming Software Development: The Role of AI and Developer Tools](https://www.wearedevelopers.com/magazine/527-transforming-software-development-the-role-of-ai-and-developer-tools) - [Will AI replace Software Engineers?](https://www.wearedevelopers.com/magazine/340-will-ai-replace-software-engineers)