Staff Mechanical Design Engineer - Battery Pack Systems

Mapt; Los Angeles (CA); On-site; USD 140,000 - 190,000; Full time

Benefits offered by this job

Equity participation

Medical, Dental, and Vision

401(k)

Flexible PTO

Team meals twice a week

Monthly team events

Job summary

MAPT in California is seeking a Staff Mechanical Design Engineer to own the design and development of battery module components from concept through production, with responsibility for cell retention, thermal management, safety systems, and housing integration.

You will partner with electrical, thermal, simulation, and software teams to optimize the complete pack, work hands-on with design decisions, and drive releases with high autonomy in a high-performance engineering environment.

Qualifications

• Bachelor's or master's degree in mechanical engineering (or equivalent).
• 7–8+ years of mechanical design experience in automotive or motorcycle battery/powertrain development.
• Advanced CAD proficiency in CATIA V5/V6 (3DX), NX, or SolidWorks with GD&T and production drawings.
• Strong understanding of lithium-ion cells and related electromechanical and safety design constraints.
• Experience with 400V+ battery system architectures and HV safety requirements.
• Hands-on structural FEA experience and interpretation for design decisions.
• Experience with DFMEA/DVP&R cycles and design release processes.
• Battery module or pack design experience navigating cell-level constraints and thermal management.

Responsibilities

• Own the design for a new module architecture— cell retention systems, thermal management strategies, safety systems, housing integration, and electromechanical interfaces.
• Work with cylinder and pouch cell formats in 400-1000V systems, optimizing weight, thermal performance, cost, and manufacturing feasibility.
• Collaborate cross-functionally with electrical, thermal, simulation, and software teams to optimize the complete battery pack package.
• Coordinate design work with pack team members to converge on feasibility for function, manufacturing, and reliability of modules in pack and vehicle.
• Develop a robust cell venting strategy and propagation protection while meeting manufacturing and cost targets.
• Identify and suggest missing requirements needed and drive completion of released requirements.

Skills

Mechanical design

Battery/module design

HV 400V systems

FEA (structural)

DFMEA / DVP&R

DFM for manufacturing

Cross-functional collaboration

Education

Bachelor's or Master's in Mechanical Engineering

Tools

CATIA V5/V6 (3DX)

NX

SolidWorks

Job description

MAPT in California is seeking a Staff Mechanical Design Engineer to own the design and development of battery module components from concept through production, with responsibility for cell retention, thermal management, safety systems, and housing integration.

You will partner with electrical, thermal, simulation, and software teams to optimize the complete pack, work hands-on with design decisions, and drive releases with high autonomy in a high-performance engineering environment.