Fractile is building silicon, systems and software which will redefine the frontier of AI: running the world’s most advanced models at radically higher speed and lower cost. We have an exceptional team across hardware and software capable of bringing about this change, and we are growing fast to meet demand and deliver our product at scale.

We are seeking an experienced PCB Layout Engineer to deliver complex, high-speed and high-power PCB designs while also owning PCB library creation, validation, and ongoing management. This role plays a critical part in ensuring electrical performance, manufacturability, and long-term design quality across multiple products. The ideal candidate combines deep layout expertise with a strong understanding of component footprints, land patterns, and library governance best practices.

Key Responsibilities

PCB Layout & Design Execution

• Create PCB layouts for complex, multi-layer boards supporting high-speed digital and high-power circuits
• Own component placement, routing, and constraint implementation from concept through manufacturing release
• Collaborate closely with hardware designers to resolve layout-driven electrical and mechanical tradeoffs

High-Speed Signal Integrity

• Route high-speed interfaces such as DDR, PCIe, Ethernet, USB, and SerDes-based links
• Apply controlled impedance routing, differential pair tuning, length matching, and return-path management
• Implement SI-aware stack-ups and routing strategies to minimise crosstalk and signal loss

High-Power & Power Integrity

• Layout high-current power paths, including VRMs, DC-DC converters, and power planes
• Optimise copper distribution, plane structures, and via arrays for current handling and low impedance
• Support thermal performance through copper pours, stitching vias, and heatsink interface planning

PCB Library Creation & Management

• Create, validate, and maintain schematic symbols, PCB footprints, and 3D models
• Ensure land patterns meet IPC standards and supplier recommendations
• Own library quality, version control, naming conventions, and release processes
• Collaborate with engineering, manufacturing, and supply chain to ensure component accuracy and lifecycle readiness
• Drive continuous improvement of library standards and documentation

Collaboration & Reviews

• Participate in schematic reviews, layout design reviews, and SI/PI discussions
• Work with SI/PI engineers to implement simulation-driven layout constraints
• Support DFM/DFA reviews and interface directly with PCB fabricators and assemblers

Manufacturing & Debug Support

• Generate manufacturing deliverables (Gerbers, ODB++, IPC drawings, pick-and-place data)
• Support board bring-up and debug by implementing layout ECOs
• Resolve layout- and footprint-related manufacturing or assembly issues

Qualifications & Experience

• Diploma, Bachelor’s degree, or equivalent experience in Electronics, Electrical Engineering, or related field
• 7+ years of professional PCB layout experience
• Proven experience with high-speed digital and high-power PCB designs
• Hands-on experience creating and maintaining PCB libraries for production hardware

Technical Skills

PCB layout tools such as Siemens Xpedition, Altium Designer, Cadence Allegro, or equivalent

• Library creation and management workflows
• High-speed routing (DDR, PCIe, Ethernet, USB, SerDes)
• High-current and power integrity layout techniques
• Multi-layer PCB stack-ups (10+ layers preferred)

Skills & Competencies

• Exceptional attention to detail and design discipline
• Strong ownership mindset for design quality and library integrity
• Effective communicator across hardware, mechanical, and manufacturing teams
• Comfortable managing multiple designs and revisions in parallel

Preferred Experience (Nice to Have)

• Experience with SI/PI simulation-informed layouts
• Familiarity with EMI/EMC-aware layout practices
• Experience with HDI, fine-pitch BGAs, and advanced PCB technologies
• Experience with AI accelerator or HPC hardware

   How we work

• Ownership and execution: you will have full agency to drive your work forward
• Rapid iteration: we all work directly with top leadership to move from idea to hardware on ambitious timelines
• Full-stack engagement: hardware, software, silicon, and modelling teams all work closely together to create a product with generational impact
• Optimistic and pragmatic: we possess the will to win, and to do the hard work to get us there
• Team player mentality: the mission is bigger than any of us, and we have the curiosity and technical focus to see the best idea shipped, no matter who’s it is

About us

• Founded in 2022, team of 70+ which is expanding rapidly
• Modern, open offices in London and Bristol
• Collaborative, problem-solving culture built on deep curiosity, entrepreneurial initiative and technical fluency

Export control and security clearance

Certain roles may involve working on technologies subject to export restrictions. Applicants may be required to undergo additional eligibility checks to ensure compliance with applicable law.

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 

As the Hardware System Test Engineering Manager, you will lead the Hardware System Test Team responsible for developing manufacturing test solutions for High Performance Modules (HPM), Server Blades, and Multi-node racks as part of the production assembly process. You will drive the creation of robust test executive software that sequences tests and integrates test content from multiple internal and external sources. You will guide the development of manufacturing test content and test fixtures informed by a deep understanding of silicon, board, and system design. Working cross-functionally with hardware, firmware, and software teams, you will ensure the right tools and functionality exist to efficiently validate product quality at scale. 

The Team 

The Product Test and Diagnosis team is responsible for identifying and diagnosing hardware defects introduced during the manufacturing process. The team defines, develops, and executes an end-to-end test strategy spanning silicon, board-level assemblies, server blades, and rack-scale systems. Testing is performed across the full product lifecycle, including manufacturing, and deployed field environments. 

Product Test and Diagnosis is part of the Manufacturing Operations organisation, which also comprises Manufacturing Technology, Supply Chain, and Quality teams. The group operates as a global team, with engineers based in the UK (Bristol and Cambridge), Taiwan, India, and the United States. 

Responsibilities and Duties 

• Lead and grow a multidisciplinary team of hardware and software test engineers delivering manufacturing test solutions for complex compute systems. 

• Define the manufacturing test strategy and roadmap for High Performance Modules, Server Blades, and Multi-node racks. 

• Own delivery of test executive software used in both manufacturing and lab environments to orchestrate test sequencing, logging, results aggregation, and integration of test content from diverse sources. 

• Partner with internal software, firmware, and platform teams to ensure required hooks, diagnostics, telemetry, and APIs exist to enable effective manufacturing test. 

• Establish best practices for test coverage, traceability, release management, and configuration control of test software and content. 

• Implement metrics and dashboards for manufacturing test (yield, escapes, false fails, coverage, cycle time) and lead continuous improvement initiatives. 

• Drive root-cause analysis of manufacturing failures and field returns, coordinating corrective actions across design, validation, and manufacturing engineering. 

• Own the delivery of manufacturing test fixtures for High Performance Modules and Server Blades, including defining requirements, managing external subcontractors, and ensuring fixtures meet quality, cost, schedule, and production readiness needs. 

• Ensure test solutions are scalable, maintainable, and production-ready, including documentation, training, and support processes for factory deployment. 

• Support supplier/contract manufacturing engagements as needed, including test station readiness, deployment qualification, and ongoing production support. 

Candidate Profile  
 

Essential: 

• Experience developing manufacturing test solutions for high-performance servers, accelerators (GPU-class), or comparable large scale compute hardware. 

• Demonstrated people leadership experience managing a mixed hardware/software engineering team (hiring, coaching, performance management, and team development). 

• Deep technical understanding across silicon, board, and system design sufficient to define effective manufacturing test coverage and guide debug/root-cause analysis. 

• Strong cross-functional collaboration skills, with experience driving requirements and delivery with internal software/firmware/platform teams to enable testability. 

• Hands-on experience using Linux, OpenBMC, and vendor specific test tools, diagnostics, and system-level utilities to test hardware in lab and manufacturing environments. 

• Experience with scripting languages such as Python, Bash, or similar. 

Desirable: 

• Familiarity with rack-scale/multi-node systems, high-speed interconnects, and production qualification of complex assemblies. 

• Experience improving manufacturing KPIs (yield, test time, false fail reduction) through data-driven process and test optimization. 

• Knowledge of open-source tools commonly used for manufacturing test 

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.    

What you’ll be doing  

We are seeking a diligent and detail-oriented Component Engineer to join our Manufacturing Operations team in the UK. In this role, you’ll work closely with our Manufacturing, Test, Quality and Supply Chain teams to support both new product introduction and volume manufacturing. You'll work with internal stakeholders, component suppliers and external contract manufacturers, managing the specification, selection and sourcing of components required to manufacture our products to the appropriate performance, reliability, quality and yield.  

The Team 

The role will be as part of the Manufacturing and Technology Process team at Graphcore. This team is part of the Operations group and has members in Bristol, Cambridge and Taiwan. The team is responsible for developing and maintaining robust manufacturing processes at the wafer foundry, package assembly and PCBA subcontractors based in Taiwan.  

Responsibilities and Duties:  

• Support the selection, evaluation, and qualification of electronic and electro-mechanical components to meet agreed design and manufacturing requirements.
• Create and maintainapproved component lists and Bills of Material (BoM) revisions using the Arena BoM management, or other tools as required. 
• Using published data, ensurecomponents and products meet industry compliance requirements for quality, emissions, safety and the environment. 
• Survey the market to identifyor develop enabling component technologies for next generation products. 
• Assesscomponent supply risks, manage component obsolescence, and propose alternative sourcing solutions to ensure continuity of supply. 
• Occasional global travel to supplier sites may be required. 

Candidate Profile Requirements: 

• In depth working knowledge of BOM management and sourcing systems such as Arena and Silicon Expert.
• Excellent electronics knowledge and familiarity with component parameters and datasheets. 
• Good understanding of PCB manufacturing and SMT assembly processes.
• Ability to understand the interaction and dependencies between silicon, package and PCB design. 
• Experienced in working with leading edge suppliers in electronics supply chain, preferably with offshore contract manufacturers. 
• Strong communication and stakeholder management skills to collaborate effectively across global teams. Detail-oriented with strong organisational and problem-solving skills. 
• Proficiency in using data analysis and reporting tools (e.g., Excel, Power BI) to support component and supply chain decisions. 
• BEng/HND ElectronicEngineering or equivalent experience 

What we’ll bring  

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 us

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 enjoys a culture of continuous learning and constant innovation. 

Job Summary

Our team is at the forefront of the artificial intelligence revolution, enabling innovators from all industries and sectors to expand human potential with technology. The availability of specialised artificial intelligence compute will be a decisive factor in AI’s rate of progress. Graphcore allows innovators to go further, faster. What we do, really makes a difference.

We are looking for a Technical Sourcing Manager who will report to the Procurement Manager and will have accountability for the delivery of project and programme procurement and cost services

The Team

The role will be as part of the Supply Chain team at Graphcore. This team is part of the Operations group and has members in Bristol and Taiwan. The team is responsible for developing and maintaining a robust manufacturing subcontract supply chain for Graphcore.

Responsibilities and Duties

• Collaborate with the Graphcore engineering team to identify and source key electrical commodities and critical components (capacitors, resistors, memory, PCBs, cabling, etc.), ensuring alignment with Graphcore’s technical roadmap and business objectives.
• Manage purchase orders and deliveries
• Negotiate, purchase, and expedite production components in support of NPI builds and business requirements
• Research and qualify new suppliers to expand the supply base
• Drive cost reduction initiatives and shorten delivery lead times
• Navigate and manage complex, multi-layer BOMs with confidence
• Monitor supplier performance and provide constructive feedback
• Track and report actual vs. planned costs (PPV)
• Partner with other operations stakeholders to maintain accurate BoM cost updates
• Verify NDA status with suppliers and coordinate renewals or execution of new agreements

Candidate Profile 

Essential:

• Strong technical / electronics background
• Experienced in EE component sourcing
• Degree/HNC or equivalent level in an Engineering/Technical Subject
• Will have experience in applying budgeting and cost control techniques within a complex environment. 
• Advanced knowledge of cost management techniques
• Have intermediate / advanced Excel skills, good knowledge of MS Office and ERP systems

Role OVO-View

Team: Procurement & Supply (Finance)

Location: Bristol or London

Salary banding: £43,610 - £62,801

Experience: Mid-level

Working pattern: Full-Time

Reporting to: Senior Category Manager, Technology

Sponsorship: Unfortunately we are unable to offer sponsorship for this role.

This role in 3 words: Analysis, Relationships, Commercial

Top 3 qualities for this role: Negotiator, Self-Solving, Entrepreneurial

Where you’ll work:

Depending on the needs of your business area, we expect hub based people to be in the office at least once a week, and to go to OVO Connection events in-person. 

This role will be based at either our London or Bristol hub only, however travel between all hubs, Bristol, London and Glasgow will be expected. Each hub has accessible spaces to park your laptop, is designed to inspire people, help them connect and bring big ideas to life.

Everyone belongs at OVO

At OVO, we are on a mission to solve one of humanity's biggest challenges, the climate crisis. And we know it takes all of us to change the world. That's why we need diverse people from all abilities, gender identities, ethnicities, ages, sexual orientations, life experiences and backgrounds to join us.

Teamworking for the planet

Everything we do here spins around Plan Zero. So, naturally, the team you’ll be joining plays a gigantic role in making that happen. Here’s how:

As an enterprise business OVO’s supply chain presents large risk but great opportunity when it comes to sustainability and wider ESG initiatives. Procurement & Supply play a vital role when contributing to OVO’s wider Plan Zero aspirations ensuring we’re working with the right partners and managing risks appropriately.

This role in a nutshell:

Your key outcomes will be:

• Ensuring Tech Professional Services are fit for purpose, aligned to OVO’s objectives and key results and wider business needs, representing the best value and quality (working in collaboration with the Senior Category Manager). 
• Lead end-to-end procurement processes for assigned sub-categories in the technology space, ensuring efficiency and compliance. 
• Negotiate contracts with suppliers to secure favourable terms and cost savings.
• Build and maintain strong relationships with key suppliers to drive collaboration and innovation.
• Conduct market analysis to identify risks, opportunities, and trends for assigned sub-categories, feeding into the Technology Spend Category Strategy. 
• Monitor supplier / agency performance and collaborate with the business on regular supplier performance reviews. 
• Collaborate with internal stakeholders to align spend category objectives with organisational goals.
• Drive continuous improvement initiatives across procurement activities.
• Support OVO’s sustainability goals through ethical and environmentally responsible sourcing.

Additionally, you will:

• Use data to maintain a clear view of technology professional services category spend and suppliers.
• Support category savings opportunity analysis and future pipeline initiatives.
• Execute RFx exercises, guiding stakeholders and ensuring strong project management practices.
• Lead material commercial initiatives, presenting to the C-suite in line with OVO’s authority matrix.
• Deliver effective Supplier Management strategies. In life contract management, reducing risk, scope creep, supplier performance and contract exit
• Ensure adherence to procurement & contract policies and monitor compliance.
• Contribute to continuous improvement of procurement tools, processes, and customer journey management.
• Align sourcing activities with OVO’s Plan Zero objectives, demonstrating measurable contributions.

You’ll be a successful Category Manager - Technology Services at OVO if you…

• Are a strategic thinker with at least 3 years of experience in procurement, supplier management or category management.
• Have strong negotiation skills with a proven track record of delivering material commercial benefits.
• Excel in managing supplier relationships, driving performance, and fostering innovation.
• Are analytical, capable of sourcing and interpreting data to inform decisions.
• Communicate effectively with stakeholders and build collaborative relationships.
• Demonstrate a commitment to sustainability and ethical procurement practices.
• Thrive in a fast-paced, dynamic environment and manage multiple priorities efficiently.
• Are a team player, working collaboratively with a pragmatic approach.
• Have or are working towards a CIPS qualification (desirable).
• Show an understanding of procurement systems (e.g., Workday Strategic Sourcing).
• Bring experience in sourcing across key subcategories, with exposure to the energy sector being a plus.

You won’t like this role if you…

• Are uncomfortable leading on initiatives with high corporate exposure (Head of Departments and Directors).
• Are unable to effectively and constructively challenge the status quo.
• Are uncomfortable giving and receiving constructive feedback (radical candor).
• Do not possess technical understanding of Procurement best practice.
• Are unable to work effectively across a wider team and influence multiple stakeholders with disparate priorities.
• Do not possess strong commercial acumen and an eye for a deal.
• Are unable to effectively sell and promote the benefits of a robust procurement approach  to your colleagues and peers.

Let’s talk about what’s in it for you

We’ll pay you between  £43,610 and £62,801, depending on your specific skills and experience.

We keep our pay ranges broad on purpose to give us, and you, flexibility to match your experience to our zero carbon mission.

You’ll be eligible for an on-target bonus of 15%. We have one OVO bonus plan that focuses on the collective performance of our people to deliver our Plan Zero goal. 

We also offer plenty of green benefits and progressive policies to help you feel like you belong at OVO…and there’s flex pay. We'll give you 9% Flex Pay on top of your salary – 4% of this is auto enrolled into your pension, and the remaining 5% is yours to do what you like with. You can use this to buy from our extensive range of flexible benefits, including our green benefits which we've put at the heart of our offering, add to your pension or even take it as cash.

Here’s a taster of what’s on offer: 

For starters, you’ll get 34 days of holiday (including bank holidays).

For your health
With benefits like a healthcare cash plan or private medical insurance depending on your career level, critical illness cover, life assurance, health assessments, and more

For your wellbeing
With gym membership, travel insurance, workplace ISA, will writing services, dental insurance, and more

For your lifestyle
With extra holiday buying, discount dining, home & tech loans, and supporting your favourite charities with give-as-you-earn donations

For your home 
Get up to £400 towards any OVO Energy plan, plus great discounts on solar, smart thermostats and EV chargers

For your commute
Nab a great deal on ultra-low emission car leasing, plus our cycle to work scheme and public transport season ticket loans

Want to hear about our full range of flexible benefits and progressive people policies? Our People Team can tell you everything you need to know.

For your Belonging

To find better ways to support our people, we need to listen to each other’s experiences and find ways to build a truly inclusive and diverse workplace. As part of this, we have 8 Belonging Networks at OVO. Led by our people, for our people - so when you join OVO, you can play a part - big or small - with any of the Networks. It's up to you.

Oh, and one last thing...

We’d be thrilled if you tick off all our boxes, yet we also believe it’s just as important we tick off all of yours. And if you think you have most of what we’re looking for but not every single thing, go ahead and hit apply. We’d still love to hear from you!

If you have any additional requirements, there’s a space to let us know on the application form; we want to make the process as easy and comfortable for you as possible.