Thermo Mechanical Engineer

Responsibilities

• Lead the design and specification of an advanced cooling solution for dense AI hardware systems
• Work closely with 3rd-party suppliers to define thermal and mechanical requirements and review proposed solutions
• Contribute to mechanical system design including chassis interfaces, manifold routing, and fittings
• Model and simulate thermal performance at cold plate, chassis, and rack levels
• Develop and oversee a test platform to validate cooling concepts and final implementation
• Support the design of Direct-to-Chip (D2C) liquid cooling systems, Cold Plates, CDUs, and Hybrid Liquid-Air chassis
• Drive design reviews and ensure solutions are manufacturable and reliable
• Liaise with system, hardware, and data centre teams to ensure seamless integration

Requirements

• Bachelor's Degree in Mechanical Engineering
• At least 7 years of experience in hardware products with thermal design liquid cooling systems
• Expertise with D2C liquid cooling, cold plate design, and CDU/rack-level systems
• Hands-on experience with thermal modelling and simulation tools
• Experience taking designs through prototyping, test, and production
• Strong collaboration skills and supplier management experience
• Familiarity with thermal-fluid analysis and materials selection

Preferred Qualifications

• Experience with AI accelerator or HPC hardware
• Background in mechanical engineering for chassis design and integration
• Experience working with data centre operators or hyperscale infrastructure teams
• Awareness of liquid handling and serviceability in deployed environments

About the Company

Fractile is building silicon, systems and software to redefine the frontier of AI by running advanced models at higher speeds and lower costs. Founded in 2022, the team is expanding rapidly with a collaborative, problem-solving culture.