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Senior Device Product Engineer

Plessey Semiconductors Ltd | plymouth, United-Kingdom | Posted June 17, 2026

Position Overview

£36,057 per year – estimated (full‑time position).

Responsibilities

  • Drive electrical and optical characterisation of devices and arrays, uncovering performance at the smallest scale through detailed measurement and analysis.
  • Get hands‑on with manual and semi‑automated probe stations, directly validating device behaviour and bridging the gap between lab and production.
  • Capture and interpret key performance indicators including IV behaviour, optical output, uniformity, efficiency, and defectivity.
  • Lead and support accelerated life testing and reliability studies, pushing devices to their limits to understand real‑world performance.
  • Investigate degradation pathways and failure mechanisms, turning data into insight on how and why devices evolve over time.
  • Track and interpret long‑term stability trends, ensuring robust performance from lab to production scale.
  • Dive deep into raw probes and test dataset...

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