Test & Characterisation Engineer

Test & Characterisation Engineer

Suffolk, UK Onsite working required

Key Responsibilities

• Design, build, and execute complex optical and electrical test setups, including automated measurement systems.
• Develop effective Design of Experiments (DoE) methodologies and perform advanced measurements to support product development.
• Create and implement modular characterisation protocols and test methods aligned with project requirements.
• Analyse and interpret device performance data to extract key metrics, identify trends, and determine failure modes.
• Produce clear technical reports summarising verification and characterisation results, providing recommendations for future development.
• Collaborate closely with design, process, test, and reliability engineering teams.
• Contribute to the development of test strategies for new device platforms and emerging technologies.
• Support continuous improvement initiatives relating to laboratory workflows, automation, engineering processes, and best practices.
• Assist with additional technical activities as required to support project and business objectives.

To be considered you will need the following:

• Degree in Physics, Optoelectronics, Photonics, or a related discipline (Masters or PhD preferred).
• Experience designing and operating laboratory test setups for photonic or optoelectronic device characterisation.
• Strong understanding of III-V optoelectronic device physics.
• Experience with optical characterisation techniques, including:
  • Optical power measurements
  • Spectral analysis
  • Optical coupling and alignment
  • Laser and fibre-optic instrumentation
• Proficiency in electrical characterisation methods, including:
  • DC and pulsed IV measurements
  • High-speed modulation testing
  • RF probing techniques
• Strong data analysis and programming skills using tools such as Python, MATLAB, and database systems.
• Ability to analyse complex datasets and communicate technical findings effectively through reports and presentations.
• Knowledge of semiconductor fabrication processes, cleanroom environments, or wafer-level testing.
• Experience with automated test systems and instrument control frameworks such as LabVIEW or NI TestStand.
• Experience in high-speed photonics, including GHz-range modulation, eye diagram analysis, and S-parameter measurements.
• Understanding of photonics packaging, integration, and reliability testing.
• Additional programming experience in LabVIEW, C++, or C#.