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Jobs at Mainspring Energy
78 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
61–78 of 78 jobs
Staff Reliability Engineer, Electrical Systems
4 months agoMainspring Energy · Menlo Park, California, United States
On-siteLead / staff$151K – $178.2K a yearEngineeringMainspring Energy is growing rapidly and has begun to manufacture its Linear Generators in volume, and reliability is a crucial element to the success of the product. The reliability team is responsible for evaluating design risks, and implementing tests and analyses to…
Mainspring Energy · Menlo Park, California, United States
On-siteLead / staff$172K – $203K a yearEngineeringMainspring is seeking a Staff Mechanical Design Engineer to own the design of electrical enclosures and power electronics packaging for the Linear Generator. You’ll lead projects from requirements through design, review, testing, and release, working closely with EE,…
Fleet Operations & Analytics Engineer
4 months agoMainspring Energy · Menlo Park, California, United States
On-site$109K – $123K a yearData & AIThe Linear Generator is a sophisticated, automated, and integrated system spanning a wide range of engineering disciplines including thermodynamics, mechanical, electrical, software, and controls. As a member of our Fleet Operations & Analytics Team, you will be part of a…
Director, Electrical Strategic Sourcing
5 months agoMainspring Energy · Menlo Park, California, United States
RemoteDirector$188.2K – $221.5K a yearOperationsWe are seeking a Director, Electrical Strategic Design Sourcing to build and lead the electrical commodity supply chain function. Reporting to the VP of Supply Chain, this role directs a team of commodity managers and program resources, owns the departmental budget, and…
Senior Mechanical Engineer - Electromechanical
5 months agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$140.3K – $165K a yearEngineeringMainspring 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…
Senior Reliability Engineer, Electrical Systems
5 months agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$126K – $148.3K a yearEngineeringMainspring Energy is growing rapidly and has begun to manufacture its Linear Generators in volume, and reliability is a crucial element to the success of the product. The reliability team is responsible for evaluating design risks, and implementing tests and analyses to…
Mainspring Energy · Menlo Park, California, United States
On-siteMid level$125K – $147K a yearEngineeringThe technology that powers Mainspring’s Linear Generator is unlike any other generator technology on the market. The Linear Generator relies on innovative electrical power and control hardware systems to achieve its best-in-class efficiency while meeting the world’s strictest…
Staff Electrical Engineer - Power Electronics
7 months agoMainspring Energy · Menlo Park, California, United States
HybridLead / staff$181K – $213K a yearEngineeringThe technology that powers Mainspring’s Linear Generator is unlike any other generator technology on the market. The Linear Generator relies on innovative electrical power and control hardware systems to achieve its best-in-class efficiency while meeting the world’s strictest…
Senior Electrical Engineer - Power Electronics
7 months agoMainspring Energy · Menlo Park, California, United States
HybridSenior$147K – $173K a yearEngineeringThe technology that powers Mainspring’s Linear Generator is unlike any other generator technology on the market. The Linear Generator relies on innovative electrical power and control hardware systems to achieve its best-in-class efficiency while meeting the world’s strictest…
Senior Mechanical R&D Technician
7 months agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$38.00 – $53.00 an hourTrades & logisticsWe are seeking enthusiastic and resourceful individuals with a strong mechanical background to join our growing Research & Development team as a Mechanical R&D Technician.
Staff Sales Engineer , Grid Scale
8 months agoMainspring Energy · Menlo Park, California, United States
RemoteLead / staff$170K – $200K a yearSalesDevelop plant-level system architecture, preliminary designs (site layouts, single-line diagrams, medium-voltage collector and step-up transformer configuration, and point of interconnection scope), and cost estimates from concept through execution handoff.; Articulate and…
Director of Mechanical Engineering
8 months agoMainspring Energy · Menlo Park, California, United States
On-siteDirector$237K – $267K a yearEngineeringLead multiple mechanical engineering teams responsible for delivering high-quality subsystem designs from concept through manufacturing. Own a significant portion of the mechanical engineering project portfolio. Develop and lead managers/technical leads in the execution of…
Mainspring Energy · Menlo Park, California, United States
On-siteLead / staff$181K – $213K a yearEngineeringThe technology that powers Mainspring’s Linear Generator is unlike any other generator technology on the market. The Linear Generator relies on innovative electrical power and control hardware systems to achieve its best-in-class efficiency while meeting the world’s strictest…
Mainspring Energy · Menlo Park, California, United States
On-siteSenior$147K – $173K a yearEngineeringThe technology that powers Mainspring’s Linear Generator is unlike any other generator technology on the market. The Linear Generator relies on innovative electrical power and control hardware systems to achieve its best-in-class efficiency while meeting the world’s strictest…
Senior Staff Technical Program Manager
9 months agoMainspring Energy · Menlo Park, California, United States
HybridLead / staff$178K – $209K a yearOperationsAre you someone who thrives on bringing clarity and structure to complex, fast-changing environments? Do you excel at leading cross-functional teams through technically challenging programs with real business impact?
Senior Commissioning Technician
9 months agoMainspring Energy · Menlo Park, California, United States +14
RemoteSenior$39.00 – $46.00 an hourTrades & logisticsMainspring Energy is seeking a highly motivated, mechanically inclined Senior Commissioning Operations Technician to join our growing Commissioning team. In this role, you will play a direct lead in completing planned and reactive service operations while transitioning into the…
Inventory Associate
11 months agoMainspring Energy · Menlo Park, California, United States
On-siteEntry level$23.00 – $26.50 an hourOperationsWe are searching for an organized and detail-oriented Inventory Associate to ensure our internal customers in Operations and Maintenance, R&D, and Contract Manufacturing are supplied with the critical parts and kits they need. In this position, you will play a key role in parts…
Senior Mechanical Engineer – Continuous Improvement for Mechanical Design & Quality Control
13 months agoMainspring Energy · Monterrey, Nuevo León, Mexico
On-siteSeniorEngineeringDo you have a knack for design of complex mechanical systems? Have you ever invented a tool or changed a process just to make routine installation or service faster and easier? If you're driven by solving real-world design challenges, especially within state of the art…
Updated 06 Nov 2026 09:37 UTC from the OptiTalent job library.