All active Assembly roles based in Bristol.
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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.
This role will design, implement, and support production-ready board/PCBA test solutions for a high-volume board integrating multiple AI accelerator chips, high-current power delivery, embedded control, and PCIe Gen6 interconnect. This is a hands-on individual contributor role focused on executing the board test strategy defined by the Board Test Engineering Lead and delivering robust, repeatable tests for offshore manufacturing.
Key Responsibilities
Required Qualifications
Preferred Qualifications
How we work
About us
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.
Ready to apply?
Apply to FractileFractile 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.
You will own the strategy, specification, and development of test solutions for a high-volume production board/PCBA that integrates multiple AI accelerator chips, high-current power delivery, embedded control, and PCIe Gen6 interconnect. Lead and manage internal and external engineering teams to deliver robust, scalable test infrastructure for offshore manufacturing.
Key Responsibilities
Required Qualifications
Preferred Qualifications
How we work
About us
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.
Ready to apply?
Apply to FractileFractile 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’re looking for an engineer to develop and maintain system-level hardware defect detection tests for an AI accelerator server platform. The role is focused on implementing, executing, and improving tests used in factory assembly and service/repair environments to identify hardware defects quickly and reliably. Work closely with the System Test Engineering Lead to translate defect detection strategy into robust, repeatable test implementations rather than design validation.
Key Responsibilities
Required Qualifications
Preferred Qualifications
How we work
About us
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.
Ready to apply?
Apply to FractileFractile 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.
You will own the architecture and execution of system-level test strategies for an AI accelerator server platform, covering the manufacture of individual servers and multi-node racks, and field deployment environments. Lead the creation, automation, and integration of tests spanning hardware, firmware, OS, high-speed IO, cooling, and manageability subsystems. Ensure scalable, reliable test processes that support high-volume manufacturing, rack integration, and in-field diagnostics and repair.
Key Responsibilities
Required Qualifications
Preferred Qualifications
How we work
About us
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.
Ready to apply?
Apply to FractileBristol or London, 3 days in the office, 2 days WFH
At Fractile, we’re building what we believe will be the world’s fastest AI inference chip from the ground up. We’re balanced across hardware and software engineering, and HW/SW co-design is real here. We move fast, and we help each other move fast. We care about each other, the software we ship, and the people who rely on it.
On the device, close to the metal, we write the runtime software that orchestrates work across the chip and runs performance-critical ML kernels. This is where performance gets real and the wins compound. Your work directly influences trade-offs for the silicon, system deployment, and the compiler.
You'll drive the first accelerator compute runs, evaluating performance on silicon, running early benchmarks, and feeding results back into the hardware and software roadmap.
If you want to build the software that turns cutting-edge hardware capability into real throughput and low latency, come build it with us.
Ready to apply?
Apply to FractileFractile 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
High-Speed Signal Integrity
High-Power & Power Integrity
PCB Library Creation & Management
Collaboration & Reviews
Manufacturing & Debug Support
Qualifications & Experience
Technical Skills
PCB layout tools such as Siemens Xpedition, Altium Designer, Cadence Allegro, or equivalent
Skills & Competencies
Preferred Experience (Nice to Have)
How we work
About us
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.
Ready to apply?
Apply to FractileAbout 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
Candidate Profile
Essential:
Desirable:
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
Ready to apply?
Apply to 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.
The Team:
The verification team sits within the Silicon design team and is responsible for ensuring that the RTL created by the logical design team and used by the physical design team matches the architecture specification for Graphcore silicon. The Silicon Verification Lead is responsible for verification activities within Graphcore, helping the team meet the company objectives for quality silicon delivery.
Responsibilities
Essential skills:
• Verification experience in relevant industry
• Proven leadership and planning skills
• Highly motivated, a self starter, and a team player
• Ability to work across teams and programming languages to find root causes of deep and complex issues
• Experience of the verification process applied in CPU and/or ASIC environments
• System Verilog, Python, C++, Linux
Desirable skills:
• UVM
• SVA
• Assembly languages
• LLVM, GCC
• DVCS e.g. Git
• SGE or other DRMS
• XML and XPath/XSLT
• Web programming – HTML/DOM, Javascript, SQL
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
We welcome people of different backgrounds and experiences and are committed to building an inclusive work environment that makes Graphcore a great home for everyone. We are an equal opportunity employer and want to build a work environment where everyone is happy, productive and respectful so they can do their best work. If you have a disability or additional need that requires accommodation, just let us know.
Ready to apply?
Apply to 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 enjoys a culture of continuous learning and constant innovation.
As an Electronics Laboratory Technician, you will support the day-to-day operation of Graphcore’s Bristol laboratories, helping to ensure that facilities, equipment, tools and processes are ready to support engineering activity. Working as part of the Laboratory team, you will help maintain a safe, organised and reliable electronics lab environment, supporting cross-functional teams with equipment setup, preventative maintenance, asset control, ESD checks and technical documentation.
The Laboratory team supports the installation, maintenance, repair and modification of electronic systems, cables and equipment within Graphcore’s laboratories. The team works closely with engineering groups to help set up test benches, troubleshoot routine lab issues and ensure that equipment is safe, available and operating reliably. The team also maintains technical documentation, manages tools, assets and test equipment, and contributes to efficient, high-quality laboratory operations.
· Support the installation, setup and calibration of electronic test equipment, including oscilloscopes, logic analysers, power supplies and related laboratory equipment.
· Carry out preventative maintenance activities to help keep laboratory equipment available, safe and reliable.
· Maintain a clean, organised and safe laboratory environment in line with health and safety requirements.
· Check and maintain ESD countermeasures, escalating issues where corrective action is required.
· Support asset management activities, including tracking tools, equipment and laboratory assets.
· Manage goods in/out processes for laboratory equipment, components and related materials.
· Support engineering teams with test bench setup, equipment configuration and technical readiness for hardware bring-up, validation and characterisation activities.
· Help create and maintain standard operating procedures, work instructions and technical guidance for laboratory users.
· Provide practical support to laboratory users, including guidance on safe equipment use and routine lab processes.
· Support engineering teams with board, cable and wire modifications, following agreed procedures and quality expectations.
· Maintain accurate records for equipment, maintenance activity, assets and laboratory processes.
· Identify routine laboratory issues and work with colleagues to resolve or escalate them promptly.
· Experience working in an electronics laboratory or similar technical environment.
· Strong practical understanding of electronic test equipment, including setup, calibration and basic troubleshooting.
· Awareness of ESD controls and safe working practices in an electronics lab environment.
· Ability to follow technical procedures accurately and maintain clear records.
· Practical experience supporting equipment maintenance, lab organisation or asset tracking.
· Good attention to detail, with a focus on quality, safety and reliability.
· Clear communication skills, with the ability to work effectively with engineering and operations teams.
· A proactive and organised approach to managing tasks and supporting laboratory users.
· Experience supporting hardware bring-up, validation or characterisation activities.
· Experience with soldering, rework, cable assembly or board-level modifications.
· Familiarity with calibration processes, asset management systems or goods in/out processes.
· Relevant technical qualification in electronics, electrical engineering or a related discipline.
· Experience working in a semiconductor, electronics, computing hardware or high-technology R&D environment.
· Familiarity with laboratory quality processes, equipment documentation or standard operating procedures.
Ready to apply?
Apply to Graphcore
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:
Candidate Profile Requirements:
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
Ready to apply?
Apply to Graphcore
Share this job
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.
The Team:
The verification team sits within the Silicon design team and is responsible for ensuring that the RTL created by the logical design team and used by the physical design team matches the architecture specification for Graphcore silicon. The silicon verification engineer is responsible for verification activities within Graphcore, helping the team meet the company objectives for quality silicon delivery.
Responsibilities
Essential skills:
• Verification experience in relevant industry
• Proven leadership and planning skills
• Highly motivated, a self starter, and a team player
• Ability to work across teams and programming languages to find root causes of deep and complex issues
• Experience of the verification process applied in CPU and/or ASIC environments
• System Verilog, Python, C++, Linux
Desirable skills:
• UVM
• SVA
• Assembly languages
• LLVM, GCC
• DVCS e.g. Git
• SGE or other DRMS
• XML and XPath/XSLT
• Web programming – HTML/DOM, Javascript, SQL
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
We welcome people of different backgrounds and experiences and are committed to building an inclusive work environment that makes Graphcore a great home for everyone. We are an equal opportunity employer and want to build a work environment where everyone is happy, productive and respectful so they can do their best work. If you have a disability or additional need that requires accommodation, just let us know.
Ready to apply?
Apply to 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.
The Team:
The verification team sits within the Silicon design team and is responsible for ensuring that the RTL created by the logical design team and used by the physical design team matches the architecture specification for Graphcore silicon. The silicon verification engineer is responsible for verification activities within Graphcore, helping the team meet the company objectives for quality silicon delivery.
Responsibilities
Essential skills:
• Verification experience in relevant industry
• Proven leadership and planning skills
• Highly motivated, a self starter, and a team player
• Ability to work across teams and programming languages to find root causes of deep and complex issues
• Experience of the verification process applied in CPU and/or ASIC environments
• System Verilog, Python, C++, Linux
Desirable skills:
• UVM
• SVA
• Assembly languages
• LLVM, GCC
• DVCS e.g. Git
• SGE or other DRMS
• XML and XPath/XSLT
• Web programming – HTML/DOM, Javascript, SQL
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
We welcome people of different backgrounds and experiences and are committed to building an inclusive work environment that makes Graphcore a great home for everyone. We are an equal opportunity employer and want to build a work environment where everyone is happy, productive and respectful so they can do their best work. If you have a disability or additional need that requires accommodation, just let us know.
Ready to apply?
Apply to Graphcore
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.
The Team
The Verification team sits within the Silicon Design organisation. We ensure that the RTL delivered by Logical Design and used by Physical Design team implements Graphcore’s architectural needs and meets the company's quality standards. As a Director of Silicon Verification, you will help lead this multi-site organisation, define verification strategies across multiple silicon programs, and drive best in class execution to ensure high-quality, high-performance silicon delivery.
Role Summary
We are seeking a proven leader to help direct Graphcore’s verification strategy and methodologies. This role sets direction for the verification lifecycle including - planning, infrastructure, execution, coverage closure, debug strategy and sign-off for Graphcore’s complex, high performance AI accelerators.
Reporting to the Senior Director of Verification the Director will partner closely with other teams such as Architecture, Logical Design, Physical Design, DFT, Systems as well as Program Management teams to ensure accurate implementation, accelerated debug cycles, high coverage confidence and predictable silicon delivery.
Responsibilities
Leadership & Strategy
Technical Ownership
Cross Functional Collaboration
Execution & Delivery
Essential Skills
Desirable Skills
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.
Ready to apply?
Apply to Graphcore
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