Principal System Engineer

Copello Global
📍 maidenhead, maidenhead, United-Kingdom 💼 Full-time 🕒 Posted February 19, 2026

Job Description

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 multidiscipli...

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Job Details

  • Location maidenhead, maidenhead
  • Job Type Full-time
  • Category Other-General
  • Posted Date February 19, 2026
  • Application Deadline March 31, 2026