Senior Software Architect - AI Development

Spectrum IT; Southampton; Hybrid; GBP 90,000 - 110,000; Full time

Benefits offered by this job

Bonus 8-10%

Pension

Medical insurance

Hybrid work with 2 office days

Job summary

Spectrum IT is looking for an experienced Senior Software Architect to guide AI-led development across a cloud platform. You will own architectural direction, ensure secure, scalable software, and shape how AI is applied in design, development and testing.

The role centers on C# and .NET with hybrid working—2 office days per week in Southampton area—and eligibility for UK Security Clearance. Competitive salary £90,000–£110,000 plus an 8–10% bonus, pension and medical insurance.

Qualifications

• Seasoned Software Architect with strong software engineering background.
• Experience designing cloud applications and scalable systems.
• Hands-on with AI tools and ability to explain value vs. human judgement.

Responsibilities

• Own architecture and design decisions for a complex cloud platform.
• Guide the development of secure, scalable, maintainable software.
• Apply AI tools across design, development and testing; review outputs.
• Collaborate with engineering and product teams to set technical direction.

Skills

Architectural design

Cloud architecture

AI integration

Software engineering

Tools

C#/.NET

AI tools

Job description

Senior Software Architect - AI-led Development

We're currently recruiting Senior & Lead Software Architects for an established technology business transforming its software platform through AI-led design and development.

This is an opportunity to own architectural direction and help shape how AI is used throughout software delivery, from initial design through implementation, testing and validation.

The core technology stack is C# and .NET, although the business is open to architects with transferable experience. Strong architectural judgement and practical use of AI matter more than an exact technology match.

The role

• Own architecture and design decisions for a complex cloud platform.
• Guide the development of secure, scalable and maintainable software.
• Apply AI tools across design, development and testing, critically reviewing their outputs.
• Work closely with engineering and product teams, sharing knowledge and setting technical direction.

About you

You'll be an experienced Software Architect with a strong software engineering background and experience designing cloud applications. You already use AI tools in your day-to-day work and can explain where they add value and where human judgement remains essential.

You don't need to be an AI specialist or hold formal AI qualifications. This is a hands-on individual contributor role, with opportunities at Senior or Lead Architect level depending on experience.

The package

£90,000 - £110,000 depending on experience, plus an 8-10% bonus, pension and medical insurance. Hybrid working includes 2 office days each week in Southampton, near Eastleigh, Fareham, Whiteley.

Applicants must be eligible for UK Security Clearance. The two-stage interview process includes a practical session using AI tools.