Senior Battery Pack Engineer - Aerospace EV Systems

magniX USA Inc; Everett (WA); On-site; USD 160,000 - 190,000; Full time

Benefits offered by this job

100% company-paid premiums for medical

4 weeks paid vacation

401K with 9.5% company contribution

Company paid Life Insurance & AD&D

Disability insurance

Catered lunches & quarterly events

Job summary

magniX USA Inc. is seeking a Battery Mechanical Engineer in Everett, WA to lead the design and integration of lithium-ion battery packs for electric and hybrid-electric aerospace applications. The role blends hands-on design with technical leadership to guide partners and suppliers.

The candidate will develop mechanical packaging concepts, perform CAD modeling, and ensure compliance with aerospace structural, thermal, and safety requirements, including thermal runaway containment and testing.

Qualifications

• Bachelor’s degree in Engineering as required.
• 5+ years of experience with EV lithium battery pack design.
• Experience with high voltage (400V+) and large packs (50kWh+).

Responsibilities

• Develop mechanical and structural packaging concepts for lithium-ion battery packs.
• CAD modeling of modules, pack enclosures, mounting systems, and installation interfaces.
• Ensure designs meet aerospace structural, thermal, vibration, and safety requirements.
• Define and execute test plans for battery module mechanical testing and thermal runaway containment.

Skills

EV battery design experience

Battery pack integration

Education

Bachelor’s degree in Electrical, Mechanical, or Chemical Engineering

Tools

SolidWorks

Job description

magniX USA Inc. is seeking a Battery Mechanical Engineer in Everett, WA to lead the design and integration of lithium-ion battery packs for electric and hybrid-electric aerospace applications. The role blends hands-on design with technical leadership to guide partners and suppliers.

The candidate will develop mechanical packaging concepts, perform CAD modeling, and ensure compliance with aerospace structural, thermal, and safety requirements, including thermal runaway containment and testing.