Mechanical Engineering Manager – Electrical Enclosures Lead

Mainspringenergy; Edison (CA); On-site; USD 150,000 - 210,000; Full time

Job summary

Mainspring Energy is seeking a Manager with a focus on designing electrical enclosures and cables while improving functionality and system‑level performance. This role will own engineering development projects and guide technical decisions across teams from concept through manufacturing launch.

You will manage engineers, lead cross‑functional collaboration with Electrical, Reliability, Test, NPI, Manufacturing, and supplier teams, and balance timelines, resources, and risks to deliver key

Qualifications

• BS or MS in Mechanical, Electrical, or related engineering.
• 11 years of industry experience with ownership of electrical enclosure/cable designs.
• Expertise in sheet metal, mechanical–electrical integration, and design for manufacturability.
• Strong electrical principles, thermal modeling, and system-level design.

Responsibilities

• Lead ideation and design reviews for electrical subsystems to enhance performance and reduce cost.
• Own structure, layout, optimization, prototyping, testing, and deployment of electrical enclosures and harnesses.
• Partner with Electrical, Reliability, Test, NPI, Manufacturing, and supplier teams to define design direction and meet milestones.
• Oversee execution by setting requirements and coordinating across disciplines to maintain cohesive technical direction.
• Manage and mentor engineers, guiding technical decisions, priorities, and growth.
• Balance timelines, resources, and risks to ensure delivery on key engineering initiatives.

Skills

Electrical enclosure design

Cables & harnesses design

Leadership

Mentoring engineers

Cross-functional collaboration

Education

BS or MS in Mechanical, Electrical, or related engineering

Tools

SolidWorks

PDM

CFD/FEA (Ansys)

Job description

Mainspring Energy is seeking a Manager with a focus on designing electrical enclosures and cables while improving functionality and system‑level performance. This role will own engineering development projects and guide technical decisions across teams from concept through manufacturing launch.

You will manage engineers, lead cross‑functional collaboration with Electrical, Reliability, Test, NPI, Manufacturing, and supplier teams, and balance timelines, resources, and risks to deliver key