C# Developer Full Stack .Net AI

Client Server; Salfords; Hybrid; GBP 86,000 - 105,000; Full time

Benefits offered by this job

Hybrid working

Parental leave

25 days holiday

Pension

Health care

Life assurance

Training & career development

Social events

Buy days

Birthday off

Job summary

Client Server is seeking an experienced full stack developer to design, build, and enhance modern SaaS applications in a hybrid environment. You will work with AI tooling and agentic development to accelerate delivery while maintaining high engineering standards.

Expect collaboration with Product Owners, architecture ownership, and rigorous code reviews. The role emphasizes cloud-based SaaS delivery, strong C#/JavaScript/TypeScript skills, and agile practices.

Qualifications

• Experience building cloud-based SaaS applications.
• Strong full stack development experience with C# .Net and modern front end technologies such as JavaScript/TypeScript.
• Hands-on experience using AI coding assistants and agentic development tools.

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.

Skills

Full stack development

C#

JavaScript

TypeScript

ASP.NET

Cloud-based SaaS

AI tooling & agentic development

Agile delivery

Code review & quality

Prompt writing

Security

Tools

AI coding assistants

Agentic AI

CI/CD

Git

Job description

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.

• 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
• 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 37 week of 2026