Mechanical/Thermal Engineer

About the role

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.

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.

Qualifications

• 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.

Preferred Qualifications

• 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.

Location and Details

Applicants must be willing and able to commute to magniX's location in Everett, Washington.

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!

Pay

Salary Range: $120k-$165k

Work Environment

This job operates in a manufacturing and testing environment. While performing the duties of this job, the employee routinely is required to use hands to keyboard, communicate, listen to, and interpret instructions and remain stationary for extended periods of time. This would require the ability to move around the facility and occasionally move/lift items weighing up to 25 lbs. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions of the job.

Required PPE (Personal Protective Equipment): Required PPE provided by magniX based on the employee’s position and exposure. Typical PPE used on the manufacturing and testing floor include Ear Plugs, Earmuffs, Safety shoes, Safety Glasses, and Safety Goggles.