Principal Systems Engineer

Principal Systems Engineer | Southampton, United Kingdom | On-site | £58,000

This employer is a globally recognised leader in defence, aerospace, and security solutions, dedicated to pioneering progress and protecting what matters most. They offer opportunities to shape the future with advanced technology and a commitment to a safer world, from the ocean depths to outer space.

The Role

• Apply Systems Thinking to understand complex problem spaces, manage constraints, and balance trade-offs.
• Drive Requirements Leadership and Management, ensuring clear capture, decomposition, traceability, and change control.
• Champion Model-Based Systems Engineering (MBSE) by modeling system behavior, structure, and interfaces.
• Utilize Problem Decomposition & Complexity Management to break down multi-domain challenges and maintain decision records.
• Contribute to Lifecycle Delivery and Systems Integration, tailoring processes and planning integration activities.
• Provide Technical Leadership and Mentorship to junior engineers, promoting best practices.

What You'll Need

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

What's On Offer

• A career with purpose and limitless possibilities in a leading technology-driven industry.
• Opportunities for lifelong learning and professional development.
• A supportive culture that values diversity and inclusion.
• Recognition for contributions and rewards tailored to well-being.

Apply via Haystack today!