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Senior Optical engineer

London
19 hours ago
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Senior Optical Validation Engineer Location: London (Hybrid) Salary: £60,000 – £80,000 + Benefits

Visa & Relocation: Support available for qualified candidates

This is an exciting and new opportunity to join a start-up involved with the research, development and design of optical / photonic technologies. Their technologies are designed to radically improve network speed and energy efficiency of AI / ML applications.

This role involves the test, prototyping, characterization and validation of their ultra-fast optical hardware products.

As a Senior Optical Engineer, you’ll take an active, hands-on role in lab-based experimentation, hardware integration, and system-level validation. Working closely with multidisciplinary design teams, you’ll bring together advanced electronics (SoC / high speed boards) and optical technologies, helping to move products from prototype to production readiness.

Typical involvements - Senior Optical Engineer / Hardware Validation Engineer

  • Integrate and test very high-speed optical and electronic hardware systems

  • Assess optical transmission and network performance for short-reach AI Networked Systems

  • Develop and execute test plans for high-speed optical transceivers across the full product lifecycle (prototype, validation, production).

  • Perform electrical and optical characterisation of transceivers, specifically in burst-mode Tx/Rx testing.

  • Analyse test data to identify performance margins, failure modes, and opportunities for design/manufacturing improvements.

  • Optimise receiver performance through equalisation tuning (CTLE, DFE, FFE) and characterise link margins.

  • Design and execute automated test and characterisation routines for prototypes and NPI systems.

  • Analyse and optimise system-level performance across electrical and optical domains.

    Candidates should be collaborative, analytical, and hands-on approach to solving complex engineering challenges

    Skills / Knowledge Required: Senior Optical Engineer / Hardware Validation Engineer

  • MSc or PhD degree in optical communications, photonics, physics, electronics engineering or other relevant areas

  • Proven experience working in industry on similar high-speed electronics / optical systems (e.g. >50 Ghz : >10Gbps)

  • Strong background in optical / photonic or high-speed electronic system testing, validation, or integration.

  • Understanding of signal integrity, high-speed PCB design considerations, and packaging impacts on performance.

  • Experience with fibre-optic communication systems testing (OLT, ONT, PON) and integration.

  • Expertise in burst-mode transceiver characterisation.

  • Solid understanding of equalisation techniques (CTLE, FFE, DFE) for improving high-speed link performance.

  • Proficiency in using high-speed measurement instruments (e.g., sampling oscilloscopes, BERTs, burst-mode analysers).

  • Familiarity with optical components (lasers, photodiodes, burst-mode APDs/TIAs, modulators) and transceiver architectures.

    Others (beneficial):

  • Strong hands-on experience in optical / photonic communication systems development and testing, ideally at 100Gbps and above.

  • Experience with automated test systems and scripting (e.g., Python, Matlab, C++, C#).

  • A strong and demonstrable interest in sustainable technologies, AI, ML and / or HPC would be preferred.

    This is a great opportunity to join a highly technical team driving innovation in next-generation AI / ML networking hardware.

    The Senior Optical Engineer opening is based in central London (hybrid). Assistance can be granted to obtain working visas

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