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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.
We are seeking a Thermal Engineer with deep experience in data centre or high-density system design, someone who can guide and shape the development of advanced cooling architectures. You might be a mechanical engineer who has specialised in thermal design, or a thermal systems expert with strong modelling and integration experience. Either way, you’ll be comfortable leading design direction and working hands-on with suppliers, prototypes, and test rigs. We are open to a contractor or permanent hires, we are most interested in finding someone who can add real expertise when it’s needed, help define the right path, and guide the build of a robust, production-ready cooling solution.
The Role
You will lead the design of an advanced cooling system for a high-density AI accelerator system destined for data centre deployment. This includes developing the full cooling architecture — from Direct-to-Chip (D2C) liquid cooling through to rack-level thermal management and hybrid liquid-air solutions for host chassis. You’ll collaborate closely with mechanical engineers (internal and external), chip and board designers, and 3rd-party suppliers to define requirements, review designs, and ensure that every aspect of the system — from the cold plate up — meets performance, reliability, and manufacturability goals. We expect you to bring a mix of technical authority, practical design sense, and strong supplier management skills. You may also lead or advise on the development of a thermal test platform to validate solutions in real-world conditions.
Key Responsibilities
Skills & Experience
Essential
Desirable
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 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 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 a Hardware Electronics Design Engineer to design, develop, and validate high-speed and high-power electronic systems. This role involves schematic design, PCB development, signal and power integrity, and hands-on bring-up of complex hardware. The engineer will work closely with system, mechanical, firmware, and manufacturing teams to deliver reliable, high-performance products from concept through production.
The ideal candidate has deep experience with high-speed interfaces and power delivery, and is comfortable owning designs through debugging, validation, and manufacturing release.
Key Responsibilities
Qualifications & Experience
Technical Skills
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 FractileCookies & analytics
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