Staff Systems Engineer - Aerospace & Defence

Posted:
6/4/2026, 5:00:00 PM

Location(s):
Scotland, United Kingdom ⋅ Livingston, Scotland, United Kingdom

Experience Level(s):
Senior

Field(s):
IT & Security

About us

At Plexus, our vision is to help create the products that build a better world.  By embracing an innovative culture of excellence, we pride ourselves on designing, manufacturing and servicing some of the world’s most transformative products. From life-saving medical technology and mission-critical defense solutions to sophisticated industrial automation, we’re proud to partner with our customers to bring their complex ideas to market. 


Visit Plexus.com to learn more about our unwavering commitment to our vision. 


Living Our Values

With a vision rooted in the wellbeing and inclusive engagement of our team members, our customers, their end users and our communities, people are the heart of what we do and who we are. Our values unite and guide us in everything that we do. 


Our values include: Growing our People, Building Belonging, Innovating Responsibly, Delivering Excellence and Creating Customer Success. 


As part of our team, you’ll do impactful work within an inclusive environment where everyone works together to achieve extraordinary outcomes. You’ll be empowered to reach your full potential through managing your own personalised development plan and access to our learning and development programs.


The Role

We are seeking a commercially-minded Systems Engineer with an Aerospace & Defense background to join our multidisciplinary team. In this role, you will navigate the full systems engineering life cycle, bridging the gap between technical complexity and business objectives across a diverse portfolio of projects.

Due to the nature of project work we require candidates to hold U.K. nationality or to either have, or be able to go through, U.K. national security vetting and clearance.

Key Responsibilities

  • System Architecture: Develop and maintain high-level architectures, requirements, and MBSE models. Lead design trade studies and performance modeling for complex systems.

  • Technical Leadership: Act as the primary technical interface for customers. Own the technical decision-making process.  Build cross-functional teams and lead technical programs from concept to delivery.

  • Strategic Growth: Partner with Business Development to capture new opportunities and cultivate "trusted advisor" relationships with key clients.

  • Operational Integration: Collaborate with manufacturing and supply chain partners to ensure seamless transitions from design to production.

Qualifications

  • Education: Bachelor’s degree in EE, ME, Aerospace, or Systems Engineering.

  • Experience: 8+ years in Systems Engineering with a proven track record in electronic product development (Analog, Digital, or Software).

  • Tooling: Proficiency in SysML, trade studies, and Model-Based Systems Engineering (MBSE).


Your Rewards and Wellbeing

We believe in rewarding your contribution with a comprehensive package designed to support your life both inside and outside of work. 

  • Growth: Bespoke development plans and volunteer time off
  • Health: Private medical insurance, Employee Assistance Program and vision care
  • Wealth: Enhanced pension contributions, life assurance, and group income protection
  • Lifestyle: Electric Vehicle and Cycle to Work schemes, plus 33 days of annual leave

Application Process

At Plexus, we don't look for culture fit, we look for culture add. We value the unique perspectives you bring and review every candidate holistically, balancing professional experience, education and individual journey. 


Accessibility and Accommodations

As a Disability Confident employer, we recruit purely on the basis of skills and merit, ensuring an equitable process for everyone. We are committed to providing reasonable accommodations for individuals with disabilities or special requirements. If you require support during the application process, please contact us at [email protected] with your contact information and a description of your needs.


Note: This inbox is dedicated to accommodation requests; please note that application status updates cannot be provided via this address.


Plexus

Website: https://www.plexus.com/

Headquarter Location: Neenah, Wisconsin, United States

Employee Count: 10001+

Year Founded: 1979

IPO Status: Public

Last Funding Type: Post-IPO Equity

Industries: Automotive ⋅ Business Development ⋅ Electronics ⋅ Enterprise Applications ⋅ Manufacturing ⋅ Supply Chain Management