Mechanical / Thermal Engineer

EPG; United States; On-site; USD 110,000 - 160,000; Full time

Benefits offered by this job

Annual performance bonus

Equity program (stock options)

Health coverage for you and family

401(k) matching

Based in Everett, WA

Job summary

EPG seeks a Mechanical/Thermal Engineer to own mechanical packaging and cooling for a high-voltage battery and power electronics system in a datacenter rack. The role focuses on delivering reliable thermal performance across continuous duty in a demanding data-center environment.

You will design enclosures, manage airflow and cooling strategies, and ensure integration with the battery team while meeting IP and packaging requirements. Everett, WA onsite role with US work eligibility is required.

Qualifications

• BS in Mechanical Engineering required.
• 5+ years in thermal management and mechanical packaging for power electronics or battery systems.
• Experience with air- and liquid-cooling design.
• High-power-density enclosure design and thermal simulation experience.

Responsibilities

• Design the battery-pack and power-converter enclosure for datacenter rack integration.
• Own the thermal strategy, air- and liquid-cooled, for continuous duty.
• Handle rack space, weight, access packaging, and serviceability.
• Integrate rack airflow and cooling; own the thermal interface with the battery team.
• Own ingress protection and high-power-density enclosure design.

Skills

Thermal management

Mechanical packaging

Air cooling

Liquid cooling

Thermal simulation

Enclosure design

Education

BS in Mechanical Engineering

Job description

EPG is currently seeking a Mechanical / Thermal Engineer for one of our partners that is an established high-voltage battery and power-electronics company, bringing technology proven in demanding, high-reliability applications to a new backup-power product for AI data centers. In this position, you will own the mechanical packaging and thermal design that gets a high-voltage battery and power converter into a datacenter rack and keeps it cool under continuous duty.

Responsibilities

• Design the battery-pack and power-converter enclosure for datacenter rack integration.
• Own the thermal strategy, air- and liquid-cooled, for continuous duty.
• Handle rack space, weight, access packaging, and serviceability.
• Integrate rack airflow and cooling; own the thermal interface with the battery team.
• Own ingress protection and high-power-density enclosure design.

Required Qualifications

• BS in Mechanical Engineering.
• 5+ years of thermal management and mechanical packaging of power electronics or battery systems.
• Both air- and liquid-cooling design experience.
• High-power-density enclosure design plus thermal simulation.
• This role is onsite in the Pacific Northwest. Must be able to work in the United States without sponsorship (US Persons only, export-control requirement).

Preferred Qualifications

• Packaging automotive or aerospace battery/power systems into stationary or industrial products.
• Datacenter rack standards (EIA-310, OCP) and liquid-cooling infrastructure.

Compensation and Benefits

• Annual performance bonus: eligible for an annual performance-based bonus (typically around 7 to 8% at this level), awarded on performance after you join.
• Equity: a company stock option program is planned, with leadership committed to rolling it out by the end of the year.
• Health coverage: approximately 100% company-paid medical, dental, and vision for you and your family.
• Retirement: roughly 9% 401(k) match.
• Location advantage: based in Everett, WA, with no Washington state income tax.
• The opportunity: join a well-funded, roughly 100-person company moving like a startup, building a clean-sheet 800V product from concept to production, where your work ships rather than sits on a shelf.