Mechanical/Thermal Engineer

MAGNIX USA INC • Everett, WA

5d • $120,000 - $165,000 • Onsite

About The Position

magniX is building a small, cross-functional team to develop a new 800V battery-based power supply and backup system for datacenter compute racks, drawing on the company's deep bench of electric propulsion battery and power electronics expertise. The Mechanical/Thermal Engineer is responsible for the design of a new battery pack and power converter enclosure, built for datacenter rack integration from the ground up. They will own enclosure design, thermal management strategy, and serviceability requirements.

Requirements

• Bachelors’ in Mechanical Engineering or related field
• 5+ years in thermal management and mechanical packaging of power electronics or battery systems.
• Experience with both air- and liquid-cooling system design.
• Familiarity with high-power-density enclosure design and associated thermal simulation tools.

Nice To Haves

• Experience packaging automotive or aerospace battery/power systems into stationary or industrial form factors.
• Familiarity with datacenter rack standards (e.g., EIA-310, OCP) and liquid cooling infrastructure.

Responsibilities

• Design a new enclosure and mechanical packaging for the battery pack and power converter to meet datacenter rack space, weight, and access constraints.
• Develop thermal management strategy (air- or liquid-cooled) for continuous-duty operation in a datacenter environment.
• Lead integration planning with rack-level airflow, cooling, and maintenance/service access requirements.
• Work with the Battery Systems Engineer on thermal interface requirements between cells, modules, and enclosure.
• Lead mechanical qualification testing (vibration, shock, ingress protection) appropriate to the stationary use case.

Benefits

• 100% company-paid premiums for medical, dental, and vision insurance (for employees & dependents).
• 4 weeks paid vacation + 1-week annual end-of-year shutdown, sick time, and 11 paid holidays.
• 401K retirement plan with industry leading 9.5% company contribution.
• Company paid Life insurance, AD&D, Short-Term and Long-Term disability insurance
• Catered lunches and quarterly company fun-day events!

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level