Principal Systems Engineer

Matchtech; Maidenhead; On-site; GBP 90,000 - 130,000; Full time

Job summary

A leading defence systems company is seeking a Principal Systems Engineer to mentor engineers and lead Systems Engineering in complex defence projects. Responsibilities include developing high-quality system architectures and artefacts, ensuring compliance with standards, and providing technical direction. The ideal candidate holds a degree in Engineering, has a strong background in the full SE lifecycle, and possesses current SC clearance. This full-time role is pivotal for advancing secure communications technologies.

Qualifications

• Experience with ISO 15288, V-model, and ISO/IEEE/IEC standards.
• Background in hardware, software, or embedded firmware.
• Current SC clearance or eligible.

Responsibilities

• Lead Systems Engineering across major defence projects.
• Develop compliance SE artefacts for quality assurance.
• Provide technical direction to cross-discipline teams.

Skills

Full Systems Engineering lifecycle

Requirements management

System design

Technical documentation

Team leadership

Proficiency in DOORS

Education

Degree in Engineering/Maths/Physics or equivalent experience

Tools

DOORS

UML

SysML

Enterprise Architect

Job description

Principal Systems Engineer – Matchtech (UK Defence Market)

London, England, United Kingdom

Powering Decision. Protecting the Future.

Join the Cyber Team and help shape the next generation of defence and secure communication technologies. The team delivers advanced cryptographic and key‑management solutions that protect critical information at tactical and strategic levels.

The role

We're looking for a Principal Systems Engineer to lead Systems Engineering activities across complex defence projects. You’ll own SE work packages, assure ISO 15288 processes, guide multi‑discipline teams, and drive the development of high‑quality system architectures and artefacts.

What You’ll Do

• Lead and represent Systems Engineering across major projects.
• Develop SE artefacts and ensure compliance with standards.
• Provide technical direction across system, hardware, firmware & software teams.
• Lead internal and customer design reviews.
• Support bids, proposals, estimates, and supplier management.
• Mentor engineers and help grow systems capability across the business.

What You Bring

• Degree in Engineering/Maths/Physics or equivalent experience.
• Strong experience with full SE lifecycle, V‑model, and ISO/IEEE/IEC standards.
• Skilled in requirements, system design, and technical documentation.
• Proficient with DOORS, UML, SysML, Enterprise Architect.
• Background in hardware, software or firmware (embedded preferred).
• Team leadership or line management experience.

Desirable: INCOSE ASEP/CSEP, SME experience, familiarity with NCSC security processes.

Requirements

• Current SC clearance or Eligible
• UK travel and clean driving licence.

Join us and help shape the future of secure defence systems. Apply today.

Seniority level

• Mid‑Senior level

Employment type

• Full-time

Job function

• Defense and Space Manufacturing, Computer and Network Security, and Technology, Information and Media

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