Senior Mechanical Design Engineer — Electrical Enclosures

Mainspring Energy, Inc.; Menlo Park (CA); On-site; USD 133,000 - 156,000; Full time

Benefits offered by this job

Pre-IPO stock options

Benefits

Job summary

Mainspring Energy, Inc. is seeking Staff Mechanical Design Engineers focused on designing electrical enclosures and cables while improving system-level performance.

You will lead projects from requirements through testing and release, ensuring electrical subsystems meet stringent technical requirements and may include direct reports. Ideal candidates have strong CAD experience, thermal modeling skills, and a passion for zero-carbon energy deployment, with onsite work at the Menlo Park HQ.

Qualifications

• Degree in Mechanical Engineering or similar; Senior: BS + 8 years or MS + 6 years
• Experience owning electrical enclosure and/or cable design from concept to launch
• Strong sheet metal design for medium-volume production and design-for-manufacturability
• Solid understanding of electrical engineering principles and thermal modeling
• Experience with SolidWorks and PDM; CFD/FEA tools a plus
• Proven ability to lead and influence complex technical decisions

Responsibilities

• Own design, optimization, and execution of electrical hardware for the Linear Generator and subsystems
• Collaborate with reliability and test teams to validate systems and drive fast iteration cycles
• Coordinate with electrical, manufacturing and suppliers to deploy designs into production
• Develop electrical hardware through requirements, prototyping, testing, iteration, and tooling
• Ensure milestones are met and resources allocated effectively

Skills

Electrical enclosure

Sheet metal design

SolidWorks

PDM

CFD/FEA

Leadership

Education

BS/MS Mechanical Engineering

Tools

SolidWorks

Ansys

Job description

Mainspring Energy, Inc. is seeking Staff Mechanical Design Engineers focused on designing electrical enclosures and cables while improving system-level performance.

You will lead projects from requirements through testing and release, ensuring electrical subsystems meet stringent technical requirements and may include direct reports. Ideal candidates have strong CAD experience, thermal modeling skills, and a passion for zero-carbon energy deployment, with onsite work at the Menlo Park HQ.