Test & Characterisation Engineer

Test & Characterisation Engineer

Suffolk, UK Onsite working required

Key Responsibilities

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

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