Job Opportunities API

The Public Ledger of Openings

← Back to the ledger

Senior Mechanical Engineer - Electromechanical

mainspringenergy
Companymainspringenergy
CategoryEngineering
LocationMenlo Park
RemoteOn-site (inferred)
EmploymentNot stated
LevelSenior
SalaryUSD 140k–165k
Posted26 May 2026
Last verified12 Aug 2026
SourceEmployer ATS (lever)
Applications are handled by the employer, not by us.Apply on the employer's site →
Description
About Mainspring Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more. The core values that ground our work, guide our decisions, and connect us together: Pragmatic Optimism Excellence without Ego Proactive Collaboration Job Overview Mainspring is seeking Senior Mechanical Design Engineers with a focus on designing electrical enclosures and cables while improving functionality and system-level performance. In this role, you will lead projects from setting requirements, designing, conducting cross functional reviews, coordinating testing and release to ensure that key electrical subsystems meet challenging technical requirements with a potential for direct reports. Ideal candidates will have a strong combination of technical expertise and the drive to solve complex problems in a collaborative environment.