Hardware Validation & Debug Engineer

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 you

About the job 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 deep understanding of our devices, boards and system behaviour. 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 behaviour 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. The team and culture You will work with Architecture, Silicon Engineering, Hardware Engineering, Firmware, PCB design, power and signal integrity teams. Progress comes through lab evidence, practical judgement and clear debug reports. The team moves quickly because the problems are real and often complex. You will own bring-up activity, drive root cause analysis and keep issues moving across teams. Decisions are made close to the data. You will be expected to speak up, challenge assumptions and help teams choose the right corrective action. What we’re looking for · 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 optimisation, 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 While we have outlined a set of requirements, we value transferable skills and diverse experiences. If you meet most of

About us 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. Job Summary Reporting to Senior Director of Post Silicon Validation, the Debug Validation Engineer will drive post-silicon debug and validation activities for next-generation AI compute silicon and systems. You will lead teams passionate about identifying, reproducing, analyzing, and resolving complex silicon, firmware, and system-level issues during bring-up, characterization, and product readiness. This role combines deep technical debugging expertise with strong cross-functional collaboration across multiple engineering fields. The Team The Post-Silicon Debug and Validation team manages bring-up, fault diagnosis, and validation of Graphcore silicon and systems. Our team participates throughout the entire product lifecycle, supporting initial silicon bring-up, subsystem validation, system integration, and production readiness tasks. We coordinate closely with hardware, firmware, software, and systems teams to examine complex failures, develop debug strategies, and advance validation infrastructure. Responsibilities and Duties Lead post-silicon debugging and validation efforts for AI compute silicon and platform technologies Contribute to debug and validation activities across multiple projects and achievements Analyze and address intricate sili

About the job Design the high-speed signal paths that let advanced AI compute systems perform at datacentre scale. As a Signal Integrity Engineer, you will shape the electrical performance of Graphcore hardware platforms. Your work will help 112Gbps and 224Gbps SERDES, DDR and processor interfaces operate within demanding system budgets. You will develop, extract and simulate PCB structures across production systems and test boards. You will define launches, via structures, transmission lines, stack-ups and low-loss materials for future designs. This role spans simulation, lab validation and practical design influence. You will work from concept through prototype bring-up, debug, validation and support for manufacture. The team and culture You will join the Hardware Engineering team, working closely with PCB, package substrate, system architecture and supplier teams. Work moves through simulation, design review, lab evidence and practical trade-offs. You will be expected to own signal integrity decisions across complex board and package interfaces. The team values careful analysis, pace and clear communication when problems need action. Decisions are made close to the engineering detail. You will challenge designs, guide constraints and help teams reach the best performance possible. What we’re looking for · Strong experience in high-speed digital circuit development, with deep signal and power integrity knowledge · Experience with high-frequency SERDES design and validation, including tens of GHz operation · Expertise using tools such as ANSYS SIWave, HFSS, Mentor HyperLynx or similar · Ability to design BGA and connector launches, via structures and transmission lines for GHz signals · Hands-on lab experience using VNAs, high-speed oscilloscopes and signal generators · Rigorous approach to design, debug and validation, with strong ownership and communication skills While we have outlined a set of requirements, we value transferable skills and diverse experiences.

About the job Design the high-speed signal paths that let advanced AI compute systems perform at datacentre scale. As a Signal Integrity Engineer, you will shape the electrical performance of Graphcore hardware platforms. Your work will help 112Gbps and 224Gbps SERDES, DDR and processor interfaces operate within demanding system budgets. You will develop, extract and simulate PCB structures across production systems and test boards. You will define launches, via structures, transmission lines, stack-ups and low-loss materials for future designs. This role spans simulation, lab validation and practical design influence. You will work from concept through prototype bring-up, debug, validation and support for manufacture. The team and culture You will join the Hardware Engineering team, working closely with PCB, package substrate, system architecture and supplier teams. Work moves through simulation, design review, lab evidence and practical trade-offs. You will be expected to own signal integrity decisions across complex board and package interfaces. The team values careful analysis, pace and clear communication when problems need action. Decisions are made close to the engineering detail. You will challenge designs, guide constraints and help teams reach the best performance possible. What we’re looking for · Strong experience in high-speed digital circuit development, with deep signal and power integrity knowledge · Experience with high-frequency SERDES design and validation, including tens of GHz operation · Expertise using tools such as ANSYS SIWave, HFSS, Mentor HyperLynx or similar · Ability to design BGA and connector launches, via structures and transmission lines for GHz signals · Hands-on lab experience using VNAs, high-speed oscilloscopes and signal generators · Rigorous approach to design, debug and validation, with strong ownership and communication skills While we have outlined a set of requirements, we value transferable skills and diverse experiences.

About the job Build the hardware that turns new AI processors into working systems. As a Hardware Development Engineer, you will design circuit solutions for Graphcore processor systems and validation platforms. You will turn system requirements into schematics, layout constraints, and testable hardware. Your work will shape production systems and test boards used across development, validation, and customer enablement. You will help prove performance, margin, and reliability before designs move into volume production. Alongside silicon, architecture, software and PCB CAD specialists, you will make design decisions grounded in evidence. You will define validation plans, run lab campaigns, debug prototypes, and interpret results with firmware and architecture teams. This role suits someone who likes owning problems from first schematic to mass production readiness. Few roles connect board design, bring-up, validation, and production so directly. The team and culture Hardware Engineering builds production systems and test hardware around Graphcore processors. The team works close to silicon, architecture, firmware, software, and PCB CAD from the first requirement onwards. Engineers own designs through definition, schematic capture, layout support, bring-up, validation, and production transfer. Work moves quickly because problems are handled close to the lab, not passed between silos. The team makes decisions through evidence: measurements, design reviews, margin data, and open technical challenge. You will speak up, take responsibility, and help the team move with confidence. What we're looking for · Strong digital circuit design and validation skills, including DCDC regulators, power delivery, resets, clocks, and control interfaces. · Experience developing processor-based systems and working with interfaces such as Ethernet, PCIe, DDR, USB, QSPI and JTAG. · Practical lab depth in bring-up, debug, margin testing, and validation using oscilloscopes, logic analysers and