Defence IT Solutions Architect

Amentum; Cardiff; On-site; GBP 70,000 - 110,000; Full time

Benefits offered by this job

Free medical cover

Digital GP services

Enhanced family-friendly policies

Employee assistance programme

Matched funding schemes

Paid volunteering

Charitable contributions

Job summary

Amentum is seeking an experienced IT architect to bridge business needs and technical solutions for a UK defence project. You will define IT architecture, align designs with client goals, and ensure security and scalability across critical systems.

The role requires delivering architecture artefacts, guiding implementation, and collaborating with multi-disciplinary teams to meet stringent Defence standards. Amentum offers a competitive package and opportunities to influence major programmes.

Qualifications

• 5+ years designing and delivering complex IT systems, ideally within Defence or high-assurance environments.
• Proven experience owning solution architecture and delivering outcomes across the full systems engineering lifecycle.
• Experience working with UK MOD customers (e.g., DE&S, Defence Digital) or similar organisations.

Responsibilities

• Defining IT architecture: analyse business requirements, identify technical solutions, and create IT blueprints.
• Designing and developing IT systems: translate blueprints into software/applications, networks, and data systems.
• Overseeing system performance: monitor performance, identify bottlenecks, implement fixes.
• Enhancing security and compliance: apply Secure by Design, encryption, access controls.
• Communicating technical concepts to stakeholders, ensuring clear project updates.
• Stay up-to-date with new technologies and industry standards.

Skills

TOGAF

UML

SysML

Sparx EA

Tools

Sparx EA

Job description

Amentum is seeking an experienced IT architect to bridge business needs and technical solutions for a UK defence project. You will define IT architecture, align designs with client goals, and ensure security and scalability across critical systems.

The role requires delivering architecture artefacts, guiding implementation, and collaborating with multi-disciplinary teams to meet stringent Defence standards. Amentum offers a competitive package and opportunities to influence major programmes.