Principal Systems Engineer - Defence. Requires SC Clearance to start and DV eligibility. Location - Berkshire 5 days per week. Salary - Competitive DoE.
We're supporting a leading organisation operating at the forefront of defence and secure systems engineering, looking to appoint an experienced Principal Systems Engineer to take a key leadership role across complex, high-impact programmes.
This is an opportunity to work on mission‑critical systems in a security‑sensitive environment, providing technical leadership across the full systems lifecycle while guiding multidisciplinary engineering teams.
The Role
* Lead the development, integration and delivery of complex systems across the full lifecycle
* Provide technical oversight and assurance, ensuring solutions meet stakeholder, safety and security requirements
* Manage and mentor multidisciplinary engineering teams
* Own and review requirements, architecture and technical documentation
* Ensure compliance with relevant industry and engineering standards
Essential Skills & Experience
* Extensive experience in systems engineering across the full lifecycle
* Strong working knowledge of requirements management and modelling tools (e.g. DOORS, UML, SysML, Enterprise Architect)
* Proven ability to produce and review high‑quality technical documentation
* Demonstrable leadership and team management experience
* Familiarity with industry standards such as ISO 15288, IEEE and IEC
Desirable
* INCOSE certification (ASEP / CSEP)
* Background in defence, aerospace or other safety‑ or security‑critical sectors
* Knowledge of security frameworks and standards, including NCSC requirements
Education & Background
* Degree in Engineering, Mathematics, Physics or a related discipline
* Significant industry experience delivering complex systems, ideally within secure environments
Additional Requirements
* Eligibility for DV security clearance
* Willingness to travel within the UK
* Full UK driving licence
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