Manufacturing Battery Pack Assembly Engineer

Job Title: Senior Manufacturing Engineer / Manufacturing Engineering Manager - Battery Pack Assembly Line

Location: California

Level: Senior / Manager

Client Facing: Yes

About PAC Group:

At The PAC Group (PAC), we specialize in engineering consulting, program management, and operational excellence—delivering high-impact solutions in more than 20 countries. We’re proud to partner with the world’s leading companies in automotive, aerospace, industrial, and technology sectors, providing strategic guidance and hands-on execution that drive innovation and efficiency. Whether we’re launching advanced manufacturing systems, deploying digital simulation tools, or scaling global operations, PAC thrives at the intersection of technology, engineering, and problem-solving.

Joining PAC means joining a dynamic, fast-paced, and global team that values curiosity, collaboration, and continuous improvement.

Role Purpose:

• Lead the definition, development, and industrialization of battery pack assembly processes, ensuring safety-critical robustness, quality performance, and scalable manufacturing readiness in support of an advanced vehicle program and greenfield manufacturing facility.
  Key Responsibilities:


• Define battery pack assembly process architecture, including material handling, joining, sealing, and end-of-line testing.


• Develop and maintain Process FMEA (PFMEA) and Control Plans, with a strong focus on safety-critical and high-voltage characteristics.


• Support digital manufacturing validation, including virtual builds and early process verification.


• Prepare early manufacturing readiness documentation to support equipment selection, facility requirements, and phased execution.


• Ensure alignment between product design, manufacturing capability, safety requirements, and quality targets.


• Support pilot builds, launch execution, and production ramp-up.


• Support structured cross-functional change-management and escalation for high-impact technical changes.


• Collaborate with Product Engineering, Electrical, Quality, Supply Chain, and Construction teams.

Required Qualifications:

• Bachelor’s degree in Engineering or related technical discipline.


• Experience in battery, high-voltage, or advanced assembly manufacturing engineering.

Preferred Qualifications:

• Experience in EV manufacturing, energy storage systems, or safety-critical production environments.


• Familiarity with digital manufacturing, virtual build, or process simulation tools.