C# Developer Full Stack.Net Agentic AI

Client Server; Reigate; Hybrid; GBP 57,000 - 95,000; Full time

Benefits offered by this job

Hybrid working

Enhanced parental leave

25 days holiday

Pension

Health care

Life Assurance

Training and career development

Social events

Job summary

Client Server in Reigate is seeking a C# Developer / Full Stack Engineer to design, develop and enhance modern SaaS applications, with an AI-first mindset. You will build scalable software, write automated tests, and shape features from concept to production.

The role involves owning architecture and engineering best practices in an evolving AI-enabled environment, with hybrid work and in-office meet-ups in Reigate.

Qualifications

• Hands-on experience using AI coding assistants and agentic development tools.
• Strong understanding of software engineering best practices, architecture, testing and Agile delivery.
• Ability to review AI generated code for quality, security and maintainability.

Responsibilities

• Design, develop and enhance modern SaaS applications.
• Write automated tests and review code throughout the Agile lifecycle.
• Define technical solutions, write clear specifications, and review AI-generated code.

Skills

C# / .NET

Full stack

AI tooling

Agile

Testing

Job description

C# Developer / Full Stack Engineer (C# .Net Agentic AI) Reigate / WFH to £95k

Are you a technologist C# Developer with an AI first mindset and full stack development skills?

You could be progressing your career in a senior, hands-on role at a global InsurTech business that is producing game changing technology.

What's in it for you:

• Up to £95k salary plus bonus
• Hybrid working (3 days a week work from home)
• Enhanced parental leave
• 25 days holiday (plus buy days and your birthday off)
• Pension, Health Care and Life Assurance
• Training and career development
• Social events and a range of other perks

Your role:

As a C# Developer you'll design, develop and enhance modern SaaS applications, working closely with Product Owners to shape new features from concept through to production. You'll build scalable, high-quality software, write automated tests, review code and contribute throughout the Agile development lifecycle.

The business is embracing AI native software engineering, rather than simply using AI to generate code, you'll work in an evolving agentic development environment, using AI to accelerate delivery while taking ownership of architecture, quality, security and technical decision making.

As the platform evolves, you'll spend more time defining technical solutions, writing clear specifications, reviewing AI generated code, orchestrating AI workflows and helping establish engineering best practices across the team.

Location / WFH:

There's a flexible work from home hybrid model, you'll join colleagues in the Reigate office twice a week for team meet-ups and stakeholder meetings with the other three days work from home.

About you:

• You have hands-on experience using AI coding assistants and agentic development tools, with the ability to write effective specifications and prompts and confidently review AI generated code for quality, security and maintainability
• You have a genuine interest in applying AI to accelerate software delivery while maintaining high engineering standards
• You have a strong understanding of software engineering best practices, including architecture, testing, code quality and Agile delivery
• You are an analytical problem solver who thrives in fast-paced, evolving environments and enjoys continuously improving products, processes and engineering practices