Copello
Active Vacancy
Principal Systems Engineer
- 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.