System Software Engineer

Defence Software Systems Engineer

Location: Bristol, UK

Security Clearance: SC Clearance (or eligible to obtain)

Full-time | Permanent

Are you a detail-oriented Systems Engineer ready to take on a key role in developing complex systems that meet mission-critical demands? Join our collaborative team in Bristol, where innovation meets precision and your work will directly impact the performance, reliability, and integrity of our cutting-edge solutions.

About the Role

We’re looking for a Software Systems Engineer with strong technical capability and a passion for delivering high-quality systems across the full engineering lifecycle. You’ll be instrumental in writing, managing, and deriving system requirements, performing integration and validation activities, and collaborating with internal and external stakeholders to ensure we exceed customer and regulatory expectations.

Key Responsibilities

• Derive and manage system requirements from customer needs and business objectives
• Write design documents and functional requirements in line with industry and internal standards
• Collaborate closely with cross-functional teams to ensure smooth system development
• Conduct system integration and testing activities to verify and validate functionality
• Evaluate interfaces and integration plans using electrical and software ICDs
• Prepare and maintain system engineering plans, procedures, and test reports
• Recommend system enhancements and ensure continuous improvement

About You

We’re looking for someone who is:

• A strong communicator and collaborator
• Analytical and detail-focused with a passion for problem-solving
• Self-driven, proactive, and organised with excellent planning skills
• Able to work effectively in multidisciplinary teams
• Eligible for or already holds SC-level security clearance

Skills & Experience

• Experience across the full Software systems engineering lifecycle
• Strong background in writing and managing technical requirements
• Hands-on experience with system integration and testing
• Familiarity with tools such as DOORS, Cameo, or similar modelling platforms

Experience working on complex, multi-disciplinary engineering projects (preferably in defence, aerospace, or transport domains)

• Work on high-impact, real-world projects
• Collaborate with leading engineers and industry experts
• Be part of a supportive, forward-thinking team culture
• Competitive salary and benefits package
• Opportunities for professional growth and development