About the job
Debug the high-speed interfaces that decide whether advanced AI systems perform in the real world.
As a Validation and Debug Engineer, you will help prove Graphcore silicon and platforms work across real product conditions. You will build deep knowledge of our devices, boards and system behaviour.
You will own hands-on validation and debug in the lab, focused on SerDes, PCIe Root Complex and Ethernet. Your work will help resolve complex issues across silicon, hardware, firmware and architecture teams.
This role is for someone who enjoys getting close to the hardware. You will tune links, investigate failures and turn difficult lab findings into clear engineering decisions.
The team and culture
You will work closely with Architecture, Silicon Engineering, Hardware Engineering and Firmware. Progress comes through practical evidence, clear communication and fast problem solving.
The team expects ownership without daily oversight. You will drive bring-up, debug issues and help teams reach decisions based on data.
You will be trusted to speak up when something is unclear or risky. The best ideas can come from anyone close to the problem.
What we’re looking for
· Strong hands-on hardware validation experience, including board bring-up and subsystem debug
· Experience validating and debugging Ethernet, PCIe Root Complex and SerDes systems
· Confident use of lab instrumentation, including oscilloscopes, BERT systems, VNA/TDR equipment and PCIe protocol analysers
· Ability to debug signal integrity, protocol-level and interface issues through to root cause
· Experience with PCIe bring-up, LTSSM analysis, link training, equalization tuning and interoperability testing
· Ability to work independently, take responsibility and drive issue resolution across teams
While we have outlined a set of requirements, we value transferable skills and diverse experiences. If you meet most of our essential criteria, we encourage you to submit an application and showcase how your background makes you a strong candidate.
Benefits
· Flexible working: Balance your work and personal life with greater flexibility
· Generous leave: Take time to rest, recharge and enjoy life outside of work
· Retirement planning support: Up to 5% matched pension
· Phantom equity: Share in Graphcore’s success
· Workplace experience: Enjoy thoughtfully designed office spaces for collaboration, with free food and an on-site barista to support your day
· Peace of mind protection: Income protection and life assurance to provide financial security for you and your loved ones
· Flexible benefits: Tailor your benefits package with a choice of additional options, including private medical insurance and dental cover
· Optional benefits: Dental cover, health cash plan, private medical insurance, cycle to work scheme, give as you earn
We welcome people from all backgrounds and experiences and are committed to building an inclusive environment where everyone can do their best work.
We’re an equal opportunity employer and recognise that everyone brings different strengths and perspectives. If you need any adjustments during the interview process, just let us know - we’re happy to support you.
Sponsorship
Applicants must have the legal right to work in the UK. Unfortunately, we are unable to provide visa sponsorship or support visa applications for this role.
Join the Team at Graphcore
Graphcore is one of the world’s leading innovators in Artificial Intelligence compute. It is developing hardware, software and systems infrastructure that will unlock the next generation of AI breakthroughs and power the widespread adoption of AI solutions across every industry.
As part of the SoftBank Group, Graphcore is a member of an elite family of companies responsible for some of the world’s most transformative technologies. Together, they share a bold vision: to enable Artificial Super Intelligence and ensure its benefits are accessible to everyone.
Graphcore’s teams are drawn from diverse backgrounds and bring a broad range of skills and perspectives. A melting pot of AI research specialists, silicon designers, software engineers and systems architects, Graphcore brings together deep expertise to solve complex problems and deliver meaningful progress in AI compute.
If you want to help validate the hardware foundations of next-generation AI compute, we’d love to hear from you. Apply now to join Graphcore.
Skills Required
- Strong experience validating and debugging complex hardware systems.
- Hands-on expertise with PCIe Root Complex bring-up, debug, and protocol analysis.
- Experience debugging Ethernet SerDes systems and high-speed interfaces.
- Proficient using oscilloscopes, BERT systems, VNA/TDR equipment, and protocol analysers.
- Strong root-cause analysis skills across signal integrity and subsystem issues.
- Ability to work independently and drive technical issues across multiple teams.
What the Team is Saying
Graphcore Compensation & Benefits Highlights
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Healthcare Strength — Private medical insurance, comprehensive dental/vision, a health cash plan, and mental wellbeing support are listed as standard, with day-one coverage and Spring Health/EAP support noted for the U.S. Life assurance and income protection add further protection for serious illness or injury.
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Leave & Time Off Breadth — Flexible working hours and “unlimited annual leave” are explicitly stated. U.S. materials also note flexible PTO and 11 paid holidays.
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Retirement Support — Retirement programs include a U.K. pension match up to 5% and a U.S. 401(k) with a 100% company match up to 6% (with a year-end true-up). These provisions signal a meaningful employer contribution toward long-term savings.
Graphcore Insights
What We Do
At Graphcore, we’re building the future of AI compute. We’re a team of semiconductor, software and AI experts, with deep experience in creating the complete AI compute stack - from silicon and software to infrastructure at datacenter scale. As part of the SoftBank Group, backed by significant long-term investment, we are delivering key technology into the fast-growing SoftBank AI ecosystem. To meet the vast and exciting AI opportunity, Graphcore is expanding its teams around the world. We are bringing together the brightest minds to solve the toughest problems, in a place where everyone has the opportunity to make an impact on the company, our products and the future of artificial intelligence.
Why Work With Us
Our team is at the forefront of the machine intelligence revolution, enabling innovators from all industries to build AI-native products to expand human potential. What we do at Graphcore really makes a difference.
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Graphcore Offices
Hybrid Workspace
Employees engage in a combination of remote and on-site work.
At Graphcore, we value wellbeing and flexibility to support a healthy work/life balance. Our hybrid approach encourages office-based colleagues to work onsite three days a week, with trusted flexibility built on trust and transparency for everyone.
