Principal Systems Engineer
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Copello Active Vacancy

Principal Systems Engineer

Employer: Copello Location: High Wycombe Salary: £70,000 - £90,000/annum
Posted on
29 October 2026 (2 days ago)
Employment Type
Permanent
Closing Date
28 November 2026
Job Reference
225778248

About this role

Copello is recruiting a Principal Systems Engineer for an engineering business working across defence and aerospace, based in High Wycombe, with a salary of £70,000 to £90,000 per annum. You would take a next-generation product from early research through to delivery, leading a group of subject matter experts. Responsibilities include owning the technical plan, product roadmap and business case, working closely with sales and business development, researching and de-risking key technology areas, and guiding multidisciplinary development through to launch. You would also mentor junior engineers and develop senior ones, with a clear route into an Engineering Manager position.

Job Description

Copello is recruiting on behalf of an engineering business working across defence and aerospace, where you would take a next-generation product from early research through to delivery. Along the way you would lead a group of subject matter experts.

You would own the technical plan, the product roadmap and the business case behind both, working closely with sales and business development. There is a clear route into an Engineering Manager position for the right person.

What you'd be doing

  • Leading subject matter experts in defining the product vision and the technical solution.
  • Researching and de-risking the key technology areas, with a clear view of the future architecture.
  • Building the plan, team structure, estimates, schedule and risk register for the new product.
  • Working with sales and business development to build the business case and shape the product roadmap.
  • Guiding multidisciplinary development through to launch and delivery.
  • Identifying and documenting the company's intellectual property.
  • Mentoring junior engineers and developing senior ones.
  • Tracking delivery against plan, milestones and unit cost targets.

What you'll need

  • An engineering degree in a relevant discipline.
  • At least five years of technical development experience.
  • Demonstrable experience of leading a technical team.
  • A background in systems engineering or systems integration on radar, surveillance or similar complex products.
  • Confidence communicating in writing and in person with customers and end users.

Please note-you must be eligible for SC clearance.