AI Engineer C# .Net JavaScript SaaS

Client Server; Reigate and Banstead; Hybrid; GBP 85,000 - 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 is seeking an experienced AI Engineer to design, develop and enhance modern SaaS applications using full stack C# in an AI-first environment.

You will collaborate with Product Owners to shape features from concept to production, build scalable software, write tests and review AI-generated code, while upholding architecture, quality, and security standards. Hybrid working with two days onsite in Reigate and three days remote.

Qualifications

• Senior AI-enabled software engineer with strong C# skills.
• Experience designing SaaS applications.
• Knowledge of AI tooling and modern dev practices.
• Excellent problem-solving and collaboration within Agile teams.

Responsibilities

• Design, develop and enhance SaaS apps in a fast-paced AI native environment.
• Write automated tests, review code and contribute through the full Agile lifecycle.
• Define technical solutions, write specifications and review AI-generated code.
• Collaborate with Product Owners and stakeholders to shape new features.

Skills

AI mindset

C# development

Job description

Salary: GBP85000 - GBP95000 per annum + bonus + benefits

Are you a technologist with an AI first mindset and full stack C# 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 an AI Engineer 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