Test Engineer II - Manufacturing

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  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.

Job Description

The Role Join our team as a Manufacturing Test Engineer in our Livingston/Bathgate site, and take responsibility for the technical direction and successful validation of critical test and inspection equipment at our site. This is an opportunity to make a tangible impact by supporting electronic product testing solutions for high-stakes sectors, including Aerospace/Defence, Medical, and Industrial.

Key Responsibilities

Your role will be central to driving quality, process efficiency, and new product introduction:

Process and Training:
Develop and provide training on Assembly Build Instructions, ensuring adherence to global Standard Operating Procedures (SOPs) and work instructions.

Project Leadership:
Lead the technical introduction of new customers and products into the testing process.

Quality Management:
Implement Engineering Change Orders (ECO) for testing and contribute to the Advanced Product Quality Planning (APQP) process, including FMEA and Control Plans.

Continuous Improvement:
Improve test acceptance and yield processes, performing failure analysis and yield improvement actions on PCBAs and complete end products.

Customer & Quotation Support:
Interface directly with customers on technical testing matters and support test quote requests based on the RFQ process.

Validation:
Validate test systems/fixtures to ensure compliance with stringent industry standards, including ISO 13485 and FDA 21 CFR 820.Essential Technical Expertise Testing Lifecycle:
Proven experience in the lifecycle support of electronic product testing solutions across Aerospace/Defence, Medical, and Industrial sectors.

Test Strategy:
Proficiency in developing functional test strategies and providing practical manufacturing requirements input to regional test development projects.

Analysis & Diagnostics:
Experience performing failure analysis, utilizing problem-solving techniques like 8D corrective action, and analyzing data using software such as MS Excel and Minitab.

Instrumentation:
Expert use of electronic test and measurement instruments, including DVMs, PSUs, oscilloscopes, power meters, and network analyzers.

Technical Comprehension:
Ability to interpret and understand complex electronic schematics for PCBA and systems.

Compliance and Process Conducting test acceptance for both customer-provided and Plexus-developed test solutions.

Defining and supporting calibration and preventative maintenance processes.

Highly Desirable Educational Preference:
Degree or master's in electronics engineering or a related…