Hardware Validation & Debug Engineer - DDR

About the Position

Hardware Validation & Debug Engineer - DDR

Location: Bristol, UK

Validate the memory and system interfaces that keep advanced AI compute reliable under real product conditions.

As a Validation and Debug Engineer, you will help prove Graphcore silicon and platforms work across the conditions our customers need. You will build a deep understanding of our devices, boards, and system behavior.

You will create and execute validation and debug plans for new hardware platforms. Your focus will include LPDDR5-9600, slow-speed interfaces, PCB issues, power behavior, and signal integrity.

This is hands-on lab work with real ownership. You will investigate failures, tune memory subsystems, and turn complex findings into clear actions across hardware and firmware.

Responsibilities

• Validate memory and system interfaces for advanced AI compute reliability
• Build deep understanding of devices, boards, and system behavior
• Create and execute validation and debug plans for new hardware platforms
• Focus on LPDDR5-9600, slow-speed interfaces, PCB issues, power behavior, and signal integrity
• Investigate failures and tune memory subsystems
• Turn complex findings into clear actions across hardware and firmware

Requirements

• Strong hands-on hardware debug experience, including board bring-up and subsystem debug
• Experience validating and tuning LPDDR memory subsystems, ideally including LPDDR5
• Ability to debug PCB, power, signal integrity, and interface issues through to root cause
• Knowledge of DDR training, timing optimization, margin analysis, eye diagrams, and stability validation
• Confident use of lab instrumentation, including high-bandwidth oscilloscopes, BERT systems, and VNA/TDR equipment
• Ability to work independently, take responsibility, and drive issue resolution across hardware and firmware teams

We Offer

• 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

About the Company

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 validate the hardware foundations of next-generation AI compute, we’d love to hear from you. Apply now to join Graphcore.