Provides hands-on technical support for semiconductor wafer test systems in an advanced manufacturing environment. Responsibilities include configuring and troubleshooting testers, probers, instrumentation, fixtures, and interfaces; investigating failures; analyzing test data and wafer-level yield; supporting corrective actions; commissioning new test systems; and developing test methods, scripts, and automation tools. The role collaborates with Test Development, Product, and Process Engineering teams to improve yield, reliability, test time, and equipment utilization.
Plessey are building next-generation MicroLED and optical interconnect technology. Join our Test Engineering team in Plymouth and give hands-on technical support for wafer test in an advanced manufacturing environment.
You will set up, troubleshoot and debug test systems, drive yield improvement, and help bring new test systems and products into production. You will work closely with the Test Development, Product and Process Engineering teams, keeping our test operations reliable and efficient.
Key Responsibilities
- Provide day-to-day technical support for wafer test systems, including setup, configuration and troubleshooting of testers, probers and associated instrumentation.
- Investigate test failures and anomalous results, find root causes and support corrective actions.
- Analyse test data and wafer-level yield to identify trends, anomalies and opportunities to improve yield and process.
- Support the introduction, commissioning and correlation of new test systems, hardware and methods, working with Test Development and Product Engineering.
- Develop or modify test methods, scripts and software tools for test analysis, automation and troubleshooting.
- Support test hardware and interfaces, including fixtures, load boards, cables and tester/prober interfaces, and help improve test time and equipment utilisation.
Skills, Knowledge and Expertise
- A degree or equivalent qualification in Electronic/Electrical Engineering, Test Engineering or a related discipline.
- 3+ years' experience in semiconductor test or electronics manufacturing, with practical troubleshooting and debugging skills.
- A good understanding of wafer test, measurement techniques, test data analysis and yield, and the ability to tell product, test-system and equipment issues apart.
- Some programming or scripting experience.
- A good understanding of electronic test hardware and instrumentation.
- Strong analytical, problem-solving, communication and documentation skills.
- A proactive, practical approach, and the ability to work independently and take ownership of technical issues.
Advantage
- RF test and measurement experience.
- Python, or experience with other programming languages, test automation tools or environments.
- Knowledge of MicroLED, semiconductor backplane technology or optical device testing.
- Exposure to optical interconnect, photonics or optoelectronic device characterisation.
Benefits
- Pension scheme
- Private medical & dental insurance
- 28 days’ holiday + bank holidays
- Free onsite meals
- Onsite gym
- Relocation support
- Visa support available
About
About PlesseyWe’re building the hardware foundation for next-era computing.Plessey is a world-leading technology company driving the next generation of photonic devices and systems. With over 70 years of innovation, we combine research, materials science, process engineering, and manufacturing under one roof. We’re recognised as a global authority in microLED displays and optical interconnects.Join us to work on breakthrough technologies shaping the future of light-based technology and computing.LeadWe don’t follow industry trends; we create them, pushing boundaries and setting standards others aspire to. Every team member has the power to make decisions, drive change, and deliver excellence. We support each other, challenge one another for the best solutions, and lead by example. Together, we build industries and technologies that shape the future and scale toward our vision of the next era of computing.GrowWe expand our capabilities every day — deepening our expertise, improving how we work, and pushing the boundaries of what’s possible. Curiosity fuels us: we question assumptions, explore new ideas, and innovate with light-based technologies. By investing in and empowering our people, we strengthen Plessey’s impact and help shape the future of optical technology.TrustWe operate like a family—honest, reliable, and supportive. We have each other’s backs, own our actions, and uphold the highest standards of integrity and safety. We trust each other to deliver, our customers to challenge us, and our expertise to guide the way. Together, trust enables the collaboration essential for breakthrough innovation and lasting impact.
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