Principal Systems Engineer

Principal Systems Engineer | Chichester, United Kingdom | On-site | Up to £58,000 + 10% bonus

This employer is a globally recognised leader in defence, aerospace, and security, pioneering advanced technology-led solutions. They are committed to shaping a safer future and offer an environment where careers can grow with purpose and limitless possibilities. As part of a valued colleague network, you'll contribute to innovation and protect what matters most.

The Role

• Apply Systems Thinking to understand problem spaces, manage constraints, and balance trade-offs.
• Manage requirements, including capturing, decomposing, and agreeing them, while maintaining traceability.
• Champion Model-Based Systems Engineering (MBSE) by modelling system behaviour, structure, and interfaces.
• Apply Problem Decomposition & Complexity Management to break down multi-domain challenges.
• Contribute to Lifecycle Delivery & Systems Integration, tailoring processes and planning integration.
• Provide technical leadership, act as a technical authority, and mentor engineers.

What You'll Need

• Strong experience applying systems engineering across the lifecycle, including requirements management, architecture definition, integration, MBSE, and V&V.
• Experience with high-level design methodologies (e.g., UAF, NAF, TOGAF, SysML, UML) and practical MBSE capability using tools like Enterprise Architect.
• Experience using requirements and interface management toolsets (e.g., DOORS).
• Knowledge of applying Systems Engineering standards and principles, such as ISO 15288.
• Exposure to system integration and verification activities.
• Degree-qualified (or equivalent experience) in a STEM or systems-related discipline, working towards CEng or operating at that level.

What's On Offer

• A career with purpose and limitless possibilities in an innovative industry.
• Lifelong learning opportunities and meaningful work where you can grow with confidence.
• Recognition for contributions and rewards tailored to individual needs.
• A supportive culture embracing sustainable working practices, fostering belonging and pride.

Apply via Haystack today!