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Location:
Bristol Design Centre, Bradley Stoke (Hybrid Working Available)
Our Team
Join a world-class engineering team at Semtech’s
Bristol Design Centre, where we’re developing high-performance semiconductor solutions that enable
next-generation optical access networks. As a market leader in
PON ONU chipsets—supporting legacy GPON, current 10Gbps XG(S)PON, and future 25G/50G applications—we design advanced
APD/PIN TIAs, laser drivers, receivers, and integrated transceivers powering global fibre-to-the-home (FTTH) infrastructure. You'll work alongside
talented RF IC designers and engineers, collaborating across multiple disciplines to shape the future of high-speed connectivity.
Job Summary
This is a
hands-on, technically demanding role for an experienced engineer with a passion for
precision testing, signal integrity, and
cross-functional collaboration. As a
Senior Staff Characterisation Engineer, you’ll be responsible for the
bring-up, automation, and execution of test systems for high-speed mixed-signal ICs. Using state-of-the-art bench equipment (DCA, BERT, LCA, etc.) and Python-based automation, you'll measure, analyse, and report product performance across PVT conditions, supporting successful new product introductions from early development through to release.
If you thrive in a fast-paced R&D environment, love solving technical challenges, and want to work on products used in millions of homes worldwide, this is your opportunity.
Responsibilities
- Collaborate closely across functions—design, validation, test, product, and applications—throughout the full NPI lifecycle.
- Develop and execute detailed characterisation test plans for new mixed-signal/optical ICs.
- Specify and configure lab-based test equipment for high-speed optical/electrical characterisation.
- Design and implement test setups including PCBs, fixturing, and integration of test instruments.
- Develop Python-based automation software to streamline characterisation workflows.
- Perform hands-on lab testing using BERTs, DCAs, VNAs, and other high-frequency equipment.
- Analyse data and produce high-quality reports, presenting findings in formal design and review meetings.
- Troubleshoot unexpected results, identify root causes, and work proactively to de-bug and resolve issues.
- Prioritise and manage tasks effectively, ensuring delivery of characterisation results to schedule.
- Build and maintain strong cross-functional relationships to drive progress and ensure product success.
Minimum Qualifications
- BSc/MSc in Electrical/Electronic Engineering, or HNC/HND with equivalent industry experience.
- Proven ability to work under pressure in a fast-paced, dynamic R&D environment.
- Strong teamwork and communication skills—collaborative, reliable, and transparent.
- Excellent analytical thinking and attention to detail.
- Able to self-learn and independently acquire technical knowledge.
- Passion for problem-solving and creative innovation.
Desired Qualifications
- 5+ years of experience in the semiconductor or optical communications industry.
- Strong fundamentals in signal integrity and high-speed lab testing.
- Proficient in Python scripting for test automation.
- Experience with test instrumentation such as BERTs, DCAs, VNAs, and LCAs.
Career Growth Philosophy
At Semtech, we believe that
innovation starts with people. That’s why we’re committed to empowering your professional development—through access to
mentorship, learning resources, and a
collaborative, idea-rich environment. Our
pay-for-performance culture rewards initiative, encourages growth, and celebrates meaningful contributions.
Join us, and be part of a team that’s building the future of connectivity—together. 
