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.
About the role
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
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Create PCB layouts for complex, multi-layer boards supporting high-speed digital and high-power circuits
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Own component placement, routing, and constraint implementation from concept through manufacturing release
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Collaborate closely with hardware designers to resolve layout-driven electrical and mechanical tradeoffs
High-Speed Signal Integrity
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Route high-speed interfaces such as DDR, PCIe, Ethernet, USB, and SerDes-based links
High-current and power integrity layout techniques
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Multi-layer PCB stack-ups (10+ layers preferred)
Skills & Competencies
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Exceptional attention to detail and design discipline
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Strong ownership mindset for design quality and library integrity
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Effective communicator across hardware, mechanical, and manufacturing teams
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Comfortable managing multiple designs and revisions in parallel
Preferred Experience (Nice to Have)
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Experience with SI/PI simulation-informed layouts
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Familiarity with EMI/EMC-aware layout practices
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Experience with HDI, fine-pitch BGAs, and advanced PCB technologies
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Experience with AI accelerator or HPC hardware
How we work
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Ownership and execution: you will have full agency to drive your work forward
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Rapid iteration: we all work directly with top leadership to move from idea to hardware on ambitious timelines
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Full-stack engagement: hardware, software, silicon, and modelling teams all work closely together to create a product with generational impact
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Optimistic and pragmatic: we possess the will to win, and to do the hard work to get us there
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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
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Founded in 2022, team of 70+ which is expanding rapidly
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Modern, open offices in London and Bristol
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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.