C# Developer Full Stack .Net AI

Salary: £95,000 - 95,000 per year

Requirements:

• Strong full stack development experience with C# .Net and modern front end technologies such as JavaScript or TypeScript
• Experience building cloud-based SaaS applications
• Hands-on experience using AI coding assistants and agentic development tools
• Ability to write effective specifications and prompts
• Confidence reviewing AI-generated code for quality, security, and maintainability
• Genuine interest in applying AI to accelerate software delivery while maintaining high engineering standards
• Strong understanding of software engineering best practices, including architecture, testing, code quality, and Agile delivery
• Analytical problem-solving skills in fast-paced, evolving environments
• Ability to continuously improve products, processes, and engineering practices

Responsibilities:

• Design, develop, and enhance modern SaaS applications
• Work closely with Product Owners to shape new features from concept through to production
• Build scalable, high-quality software
• Write automated tests
• Review code and contribute throughout the Agile development lifecycle
• Work in an evolving agentic development environment using AI to accelerate delivery
• Take ownership of architecture, quality, security, and technical decision making
• Define technical solutions and write clear specifications
• Review AI-generated code
• Orchestrate AI workflows
• Help establish engineering best practices across the team

Technologies:

• AI
• C#
• Cloud
• JavaScript
• Security
• TypeScript
• ASP.NET
• Agentic AI
• Fullstack

More:

We are a global InsurTech business producing game-changing technology. We offer a senior, hands-on role with a salary of up to £95k plus bonus, hybrid working with three days from home each week, enhanced parental leave, 25 days holiday plus buy days and your birthday off, pension, health care, life assurance, training and career development, social events, and a range of other perks. You will join us in our Reigate office twice a week for team meet-ups and stakeholder meetings, with the other three days working from home.

last updated 36 week of 2026