Fractile
Fractile is a UK based, fast-moving semiconductor start-up building next-generation AI accelerator systems for deployment in data centres. Our work sits at the intersection of high-performance hardware, thermal efficiency, and system scalability.
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
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
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
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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
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
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
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