A London based Optical Network Integration Team is now looking for a Senior Optical System Engineer with passion and experience in experiments, prototyping and testing. Offered on a Hybrid working basis, you will collaborate closely with a range of Engineers, working on optical system and network systems using automated measurements, as well as modelling while interfacing with other teams towards product development. You will work iteratively through a series of prototypes to deliver a production-grade solution. Develop and execute test plans for high-speed optical transceivers across the full product lifecycle (prototype, validation, production). Now is an exciting time to join a developer of new technologies Experience: In this Senior role, you should have experience with the following: * Strong hands-on experience in optical communication systems development and testing, ideally at 100Gbps and above. * In addition you will have experience with OLT/ONT PON system testing and integration. Expertise in burst-mode transceiver characterisation. * A solid understanding of equalisation techniques (CTLE, FFE, DFE) for improving high-speed link performance is required. * 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. * Experience with automated test systems and scripting (e.g., Python, C++, C#). * Understanding of signal integrity, high-speed PCB design considerations, and packaging impacts on performance. Qualifications: You should have achieved an MSc or PhD Degree in Optical Communications, Physics, or other relevant fields or experience within the industry. Additional Information: Candidates MUST be eligible to work and live in the UK. Copies of Visa and Passport will be requested. Salary / Benefits: In addition to a Competitive Salary, my client offers a range of Benefits including Hybrid and Flexible Working, Stock Options, 25 days holiday, and relocation assistance. Skills:. Optical Systems, Optical Communication Systems, Development, Test, OLT, ONT, PON, CTLE, FFE, DFE, Python, Signal Integrity, High-Speed PCB Design To Apply Direct: Please send CV to Iona Mulligan