Test Engineer in London

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.

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.

This role is responsible for continuously improving test performance, troubleshooting complex electro-mechanical hardware issues, and supporting test equipment installation and validation on our manufacturing lines. Working directly on high-volume production, the Test Engineer combines hands-on technical investigation (approx. 65%) with proactive cross-discipline problem-solving and customer support (approx. 35%) to keep lines running efficiently and eliminate tribal knowledge across the department.

• Key Job Accountabilities
• Manufacturing Solutions & Line Support: Develop, validate, and maintain high-quality manufacturing test solutions; rapidly troubleshoot line stops and test discrepancies to ensure customer delivery requirements are met.
• Hardware & HLA Diagnostics: Utilize appropriate tools and equipment (DMMs, oscilloscopes, power supplies) to perform root-cause debug on Higher-Level Assembly (HLA) and system-level electro-mechanical builds.
• Customer Interface & Collaboration: Act as a daily technical point of contact for customer engineering teams, translating line performance data and test findings into actionable engineering improvements.
• Documentation & Standards: Produce comprehensive project and quality documentation in accordance with Plexus change management procedures; establish technical best practices locally and collaborate with European sister sites.
• Continuous Improvement & Mentorship: Drive test yield optimization and cycle-time reduction, sharing knowledge across disciplines to build a resilient, cross-trained manufacturing team.

Education & Experience: Bachelor’s degree in Electrical/Electronic Engineering (or related technical discipline) with 2+ years of relevant experience, or an equivalent combination of education (HNC/HND) and hands-on manufacturing/test experience. Demonstrated background in board-level and system-level HLA test debug. Hands-on experience with standard laboratory test and measurement equipment.

Skills & Attributes:

• Analytical & Critical Thinking: Strong root-cause analysis mindset and practical problem-solving skills; Statistical Process Control (SPC) familiarity is a plus.
• Interpersonal & Communication: Proven ability to build collaborative working relationships across cross-functional shop-floor teams and directly with external customers.
• Software Tools (Advantageous): Exposure to or familiarity with automated test environments such as LabVIEW or TestStand (preferred, not essential).

Note: British nationality is not required; candidates must hold existing right to work in the UK.

Location & Lifestyle: Kelso, Scottish Borders This position is based at our Kelso facility, offering an alternative to city congestion and high living costs:

• Quality of Life: Located in the historic Scottish Borders, with world-class outdoor recreation—hill walking, cycling, fishing, and golf—directly accessible.
• Affordable Living: Highly accessible property market compared to major UK metro hubs, while maintaining straightforward transport links to Edinburgh and Newcastle.
• Relocation Support: We regularly welcome professionals relocating to the Borders who are seeking broader technical ownership paired with a scenic, balanced lifestyle.

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 GHQ.TA@plexus.com 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.