Senior Mechanical Engineer - Battery Systems

Gotion; Illinois; On-site; USD 90,000 - 128,000; Full time

Job summary

Gotion Inc. seeks a Senior Mechanical Engineer – Battery Systems to lead the development of high‑voltage battery packs, driving safety, performance and reliability for next‑gen EVs.

You will design enclosures, create 2D/3D CAD models in CATIA, perform DFMEA and PFMEA, develop packaging studies, coordinate prototypes, and collaborate with CAE, testing, supply chain and QA to meet targets.

Qualifications

• Master's degree in mechanical engineering or related field.
• 5+ years in HV battery design or automotive product design.
• Experience with DFMEA/PFMEA and design for manufacturing.
• Strong understanding of materials and joining techniques.
• Excellent communication and cross‑functional collaboration skills.
• Ability to lead multiple projects and manage timelines.
• Adherence to company Code of Conduct.

Responsibilities

• Design and release mechanical components of HV battery packs (enclosures, mounting structures, vehicle interfaces).
• Create 2D/3D CAD drawings of assemblies and components (wire harnesses, brackets).
• Develop GD&T compliant models for parts/assemblies.
• Work on concept development, feasibility and packaging studies.
• Conduct DFMEA/PFMEA to identify failure modes and drive improvements.
• Collaborate with CAE and testing to meet targets.
• Coordinate prototype development, assembly and delivery.
• Support cross‑functional initiatives and supply chain quality activities.
• Perform additional engineering tasks as assigned.

Skills

HV battery design

CAD software (CATIA V5/V6)

DFM/DFA

Project management

English communication

Problem solving

Education

Master's degree in mechanical engineering

Tools

CATIA V5/V6

Job description

Gotion Inc. is based in Silicon Valley, CA, currently building a Manufacturing facility in Manteno, IL and has R&D centers in Ohio, China, Japan and Europe. We innovate in the next generation electric vehicle and energy storage technologies (lithium batteries and related systems) with the aim to accelerate electrified transportation and achieve sustainable development. Gotion is powered by a leading power battery technology company that provides solutions for vehicles including the world's first mass commercial e-bus route.

Gotion is a career destination - we are not simply attempting to just fill another job, but to pursue a dream of global green energy together! We offer outstanding opportunities to individuals seeking an exciting and challenging working environment. Everyone is highly valued and plays a vital role in the growth of our organization.

About the Role & Team

As a Senior Mechanical Engineer – Battery Systems, you will be an integral part of the team driving the development of next-generation high-voltage (HV) battery systems. Your work will directly impact product safety, performance, and reliability. The team is responsible for battery pack structural and thermal system design, design validation, and final release for manufacturing and vehicle integration.

Key Responsibilities

• Design and release mechanical components of the HV battery pack, including enclosures, subcomponent mounting structures, and vehicle interfaces.
• Create and manage 2D and 3D CAD drawings of battery pack assemblies and components, including wire harnesses and brackets.
• Develop part and assembly models using appropriate Geometric Dimensioning & Tolerancing (GD&T).
• Work on concept development, feasibility studies and packaging studies.
• Conduct DFMEA and PFMEA to identify potential failure modes and drive design improvements.
• Collaborate with CAE and testing teams to ensure product designs meet performance targets.
• Coordinate development, assembly, and delivery of prototype battery packs, ensuring timelines and design targets are met.
• Perform additional engineering tasks and contribute to cross‑functional initiatives as assigned.
• Work closely with supply chain and supplier quality teams to ensure timely delivery of high‑quality components, including required testing and validation.
• Other duties, as assigned.

Required Qualifications

• Master’s degree in mechanical engineering or related discipline.
• 5+ years of experience in HV battery design, automotive product design, or relevant industries.
• Strong proficiency in CAD software (preferably CATIA V5 or V6).
• Experience in design for manufacturing and assembly (DFM/DFA), including processes like extrusion, stamping, and casting.
• Solid understanding of various materials and mechanical joining techniques.
• Proven problem‑solving skills and ability to execute contingency plans when needed.
• Strong attention to detail and the ability to manage multiple projects simultaneously.
• Excellent communication skills — verbal, written, and presentation (English).
• Project management experience and ability to lead cross‑functional efforts.
• Demonstrated ability to work in a team‑oriented environment and build consensus.
• Fully understand and abide by the contents of Code of Conduct distributed by Gotion.

Preferred Qualifications

• Experience with cell‑to‑pack (CTP) or cell‑to‑chassis (CTC) battery architectures.
• Hands‑on knowledge of battery modules, and pack design.
• Familiarity with thermal systems and battery enclosure sealing methods.

The US base salary range for this full‑time position is 90,000.00 - 128,000.00 + 15% bonus + benefits. Our salary ranges are determined by role, level, and location. The range displayed on each job posting reflects the minimum and maximum target salaries for the position across all US locations. Within the range, individual pay is determined by work location and additional factors, including job‑related skills, experience, and relevant education or training. Your recruiter can share more about the specific salary range for your preferred location during the hiring process.

Gotion Inc. is proud to be an equal opportunity employer. We are dedicated to fostering a diverse workforce that reflects the communities we serve, cultivating a culture of inclusion and belonging, and ensuring equal employment opportunities for all.

We provide equal opportunity to all individuals regardless of race, creed, color, religion, gender, sexual orientation, gender identity or expression, national origin, disability, age, genetic information, veteran status, marital status, pregnancy or related conditions (including breastfeeding), parental status, criminal histories consistent with legal requirements, or any other characteristic protected by law.

At Gotion Inc., we strive to create an environment where everyone feels valued, respected, and empowered to thrive.