About Graphcore 

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  

The Product Test and Diagnosis team requires more expertise and experience in the area of board / PCBA hardware test as part of our mission to deliver the high quality manufacturing test solutions that our advanced technology products require. The role requires close interaction with the hardware design team and other parts of the PTD team in order to define and develop appropriate test solutions using techniques such as boundary scan and embedded functional test.   

The Team

The Product Test and Diagnosis team’s role is to detect and manage hardware defects that arise from the manufacture and use of our products. This covers chips, boards and finished systems and takes place both in the manufacturing sites and in the field. 

Responsibilities and Duties 

• Analysis of PCB design testability
• Analysis of PCB design susceptibility to manufacturing defects
• Definition and development of test solutions based on that analysis
• Deployment and support of tests in factory and field environments 

Candidate Profile  

Essential:  

• Experience in manufacturing test of advanced electronic systems
• Thorough understanding of the fundamentals of electronics
• Thorough understanding of SMT / PCB manufacturing processes and failure mechanisms
• Thorough understanding of JTAG 1149 boundary scan test techniques
• Experience in the local and remote use of test instruments (Oscilloscopes, DMM's, Clock generators, SMU's, PSU's, etc.)
• Ability to work with internal teams such as software, silicon design and hardware design
• Ability to work with external board test partners
• Ability to solve problems in complex electronic systems
• Good communication skills 

Desirable 

• Several years of experience in a relevant environment 
• Appreciation of AOI and AXI process capability.
• Experience in programming and using board test systems including Bed -of-nails ICT systems
• Experience in the implementation of ISP and OBP solutions  

Benefits

In addition to a competitive salary, Graphcore offers flexible working, a generous annual leave policy, private medical insurance and health cash plan, a dental plan, pension (matched up to 5%), life assurance and income protection. We have a generous parental leave policy and an employee assistance programme (which includes health, mental wellbeing, and bereavement support). We offer a range of healthy food and snacks at our central Bristol office and have our own barista bar! We welcome people of different backgrounds and experiences; we’re committed to building an inclusive work environment that makes Graphcore a great home for everyone. We offer an equal opportunity process and understand that there are visible and invisible differences in all of us. We can provide a flexible approach to interview and encourage you to chat to us if you require any reasonable adjustments.

Applicants for this position must hold the right to work in the UK. Unfortunately at this time, we are unable to provide visa sponsorship or support for visa applications

About Graphcore 

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

We are seeking a Product Safety Engineer to support safety design, validation, and certification of high-performance server platforms, including systems operating with high-voltage DC power and advanced liquid-cooling architectures.

This role involves close collaboration with electrical, mechanical, thermal, and manufacturing teams to ensure products meet applicable safety standards and are prepared for global certification.

Required skills: 

• Contribute to safety architecture and compliance for server systems, including HVDC power shelves, PDUs, and liquid-cooling subsystems
• Apply IEC 62368-1 requirements in design reviews, including creepage and clearance, insulation coordination, grounding, and protective measures
• Review schematics, PCB layouts, and mechanical designs to identify potential electrical, thermal, and fire hazards
• Support hazard-based safety engineering (HBSE) assessments, including evaluation of single-fault conditions and abnormal operation scenarios
• Plan and execute safety validation testing, such as dielectric strength (HiPot), insulation resistance, fault condition testing, thermal evaluation, and fire enclosure assessment
• Work with EMC teams to ensure appropriate grounding, shielding, and filtering strategies are considered in safety design
• Support certification activities with external agencies (e.g. CB Scheme, NRTL bodies), including preparation of technical documentation and test reports
• Contribute to safety strategies for HVDC systems (typically 400–1000V DC), including insulation systems, interlocks, and service safety considerations
• Evaluate safety aspects of liquid-cooling systems, including leakage risk, dielectric properties of fluids, condensation, and system monitoring
• Maintain structured, audit-ready documentation to support compliance and manufacturing readiness

Desired:

• Degree in Electrical, Electronic, Mechanical Engineering, or a related discipline
• Experience in product safety, compliance, or a related engineering function
• Working knowledge of IEC 62368-1 or comparable product safety standards
• Understanding of electrical safety principles, including insulation, grounding, creepage/clearance, and fault protection
• Ability to review and interpret engineering designs (schematics, layouts, mechanical drawings) in the context of safety
• Experience supporting product certification or working with external test laboratories
• Familiarity with safety considerations in liquid-cooled or thermally intensive systems
• Awareness of EMC considerations in high-power designs

Benefits

In addition to a competitive salary, Graphcore offers flexible working, a generous annual leave policy, private medical insurance and health cash plan, a dental plan, pension (matched up to 5%), life assurance and income protection. We have a generous parental leave policy and an employee assistance programme (which includes health, mental wellbeing, and bereavement support). We offer a range of healthy food and snacks at our central Bristol office and have our own barista bar! We welcome people of different backgrounds and experiences; we’re committed to building an inclusive work environment that makes Graphcore a great home for everyone. We offer an equal opportunity process and understand that there are visible and invisible differences in all of us. We can provide a flexible approach to interview and encourage you to chat to us if you require any reasonable adjustments.

Sponsorship

Applicants for this position must hold the right to work in the UK. Unfortunately at this time, we are unable to provide visa sponsorship or support for visa applications.