Liquid-Cooling Mechanical Engineer for AI/HPC Servers

Accelsius LLC; Austin (TX); On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Equity

Full benefits

401k

Flexible PTO

Job summary

Accelsius LLC is seeking a Liquid Cooling Mechanical Engineer to design server-level liquid cooling hardware for AI and HPC platforms, including cold plate loops, tubing, manifolds, and pressure-containing assemblies.

The role progresses from prototype to production release, translating thermal prototypes into manufacturable hardware while collaborating with R&D technicians and suppliers. You will lead design reviews and mentor junior engineers, ensuring manufacturability and performance.

Qualifications

• Bachelor’s degree in mechanical engineering or similar required.
• 5+ years of progressively responsible experience.
• Direct experience designing liquid cooling hardware for data center servers or racks.
• Design of pressure-containing fluid systems: joint design, fitting selection, material selection, pressure rating, and leak testing.
• Working knowledge of fluid mechanics and heat transfer; CFD and thermal specialization not required.
• Proficiency in a parametric 3D CAD tool (SolidWorks preferred) and producing manufacturing drawings with GD&T.
• FEA experience evaluating deformation and stress in mechanical parts.
• Record of taking designs through fabrication and release with external suppliers.
• Startup experience is a plus.

Responsibilities

• Design and CAD work from prototype to production release, including cold plate loops, tubing, manifolds, and fittings.
• Lead design reviews and mentor early-career engineers on server plumbing design.
• Produce production-ready 3D models, drawings with GD&T, and BOMs; manage revisions via ECOs in PLM.
• Work with suppliers and fabricators from RFQ through first article; drive DFM.

Skills

Ownership

Clear communication

Cross-functional collaboration

FEA

GD&T

CFD (non-specialized)

Education

Bachelor's degree in mechanical engineering

Tools

SolidWorks

GD&T

FEA

Job description

Accelsius LLC is seeking a Liquid Cooling Mechanical Engineer to design server-level liquid cooling hardware for AI and HPC platforms, including cold plate loops, tubing, manifolds, and pressure-containing assemblies.

The role progresses from prototype to production release, translating thermal prototypes into manufacturable hardware while collaborating with R&D technicians and suppliers. You will lead design reviews and mentor junior engineers, ensuring manufacturability and performance.