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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.
1–20 of 78 jobs
Senior Executive Assistant
11 days agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$128K – $150K a yearAdministrationWe are seeking a highly proactive, detail-oriented, and adaptable Senior Executive Assistant to provide high-level administrative, operational, and strategic support to members of our Executive Leadership Team. Reporting directly to the SVP, People Operations, this role will…
Mainspring Energy · Menlo Park, California, United States
HybridMid level$119K – $140K a yearEngineeringDo you enjoy controlling multi-domain physical systems like robots, cars, or generators using embedded systems? Are you passionate about modeling system dynamics (linear or nonlinear), designing control algorithms, implementing them in hardware, and verifying real-world…
Senior Sustaining Controls Engineer
11 days agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$138.9K – $163.4K a yearEngineeringThe Senior Sustaining Controls Engineer will play a crucial role in the success of our product automatically and reliably fulfilling customers’ electricity demand. You will work closely with cross-functional teams to diagnose and resolve issues, differentiate between…
Senior Staff Controls Software Engineer
11 days agoMainspring Energy · Menlo Park, California, United States
On-siteLead / staff$189.4K – $222.8K a yearEngineeringMainspring Energy is seeking a highly skilled Sr. Staff Controls Software Engineer to architect, develop, and deploy industrial-grade Human-Machine Interfaces (HMI) and SCADA systems for our Linear Generator sites. As a senior individual contributor and technical lead, you will…
End of Line Technician
2 weeks agoMainspring Energy · Monterrey, Nuevo León, Mexico
On-siteMid level$13K – $16.2K a yearTrades & logisticsMainspring is seeking a motivated and technically skilled End of Line Technician to join our Mainspring Monterrey operation team. This role is ideal for individuals who thrive in a fast-paced, hands-on environment, enjoy mechanical and electromechanical work, and are energized…
Software Deployment Operations Manager
3 weeks agoMainspring Energy · Menlo Park, California, United States
On-siteManager$115K – $135K a yearEngineeringMainspring Energy is growing rapidly and has begun to deploy its Linear Generators in volume. Deploying and tracking software updates across our fleet will play a crucial role in the reliability of our product and the success of our customers.
Vice President, Electrical Engineering
3 weeks agoMainspring Energy · Menlo Park, California, United States
On-siteExecutive$285K – $335K a yearEngineeringLead all electrical hardware development for complex power electronics and controls boards, both inside the Linear Generator and also all of the grid integration equipment; Manage the development systems and processes, product deliverables and roadmap, strategy and goals;…
Senior Project Coordinator
3 weeks agoMainspring Energy · Remote
RemoteSenior$112.7K – $132.6K a yearOperationsA key enabler of Mainspring’s mission is the ability of its team to deliver solutions based on our linear generator technology that solve customer problems in the cross-section of resiliency and clean power generation. The focus of the Project Delivery department is to…
Mainspring Energy · Remote
RemoteLead / staff$135.3K – $159.1K a yearEngineeringSite Integration Engineers report to the Project Engineering Manager within the Project Delivery department. A key enabler of Mainspring’s mission is the ability of its team to deliver solutions based on our linear generator technology that solve customer problems in the…
Staff Project Engineer - Grid Scale
3 weeks agoMainspring Energy · Remote
RemoteLead / staff$135.3K – $159.1K a yearEngineeringProject Engineers report to the Project Engineering Manager within the Project Delivery department. A key enabler of Mainspring’s mission is the ability of its team to deliver solutions based on our linear generator technology that solve customer problems in the cross-section…
Senior Project Manager - Grid Scale
3 weeks agoMainspring Energy · Remote
RemoteSenior$135.3K – $159.1K a yearOperationsA key enabler of Mainspring’s mission is the ability of its team to deliver solutions based on our linear generator technology that solve customer problems in the cross-section of resiliency and clean power generation. This includes site due diligence, design engineering,…
Senior Product Integration Engineer (CAD)
3 weeks agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$130K – $153K a yearEngineeringMainspring is seeking a Senior Product Integration Engineer (CAD) to own and maintain the integrated CAD definition of the Linear Generator as designs evolve. Design Engineers will continue to own the technical design and subsystem CAD; this role will make sure those designs…
Senior Product Performance Engineer
3 weeks agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$129.9K – $152.8K a yearEngineeringMainspring is seeking a rigorous, curious, and highly motivated Product Performance Engineer to own the performance of our Linear Generator. Reporting directly to the VP of Test Engineering, you will combine hands-on experimental work with in-depth data analysis to…
Staff Product Performance Engineer
3 weeks agoMainspring Energy · Menlo Park, California, United States
On-siteLead / staff$156K – $183.5K a yearEngineeringMainspring is seeking a rigorous, curious, and highly motivated Product Performance Engineer to own the performance of our Linear Generator. Reporting directly to the VP of Test Engineering, you will combine hands-on experimental work with in-depth data analysis to…
Mainspring Energy · Menlo Park, California, United States
On-siteLead / staff$160K – $190K a yearEngineeringMainspring Energy has fundamentally redefined onsite power generation. Our breakthrough product—the Mainspring Linear Generator (LGen)—is a completely new category of energy technology. Distinct from an engine, turbine, or fuel cell, the LGen directly converts straight-line…
Manager, CAD & Design Systems
4 weeks agoMainspring Energy · Menlo Park, California, United States
On-siteManager$180K – $210K a yearDesignMainspring is seeking a Manager, CAD & Design Systems to build and scale the Mechanical Engineering organization responsible for CAD operations, product definition, product integration, design release, and configuration management. This leader will set the strategy for how…
FP&A Manager — Services
5 weeks agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$132K – $145K a yearFinanceWe are seeking an experienced FP&A professional to support our Services business unit, which services and maintains our hardware/equipment fleet in the field (Operations & Maintenance - O&M) . This role will partner closely with Operations, Field Service, and Supply Chain…
Sustaining Controls Engineer
5 weeks agoMainspring Energy · Menlo Park, California, United States
On-siteMid level$119K – $140K a yearEngineeringThe Sustaining Controls Engineer will play a crucial role in the success of our product automatically and reliably fulfilling customers’ electricity demand. You will work closely with cross-functional teams to diagnose and resolve issues, differentiate between mechanical,…
Corporate Paralegal
5 weeks agoMainspring Energy · Remote
RemoteMid level$126K – $149K a yearLegal & complianceMainspring Energy is seeking an experienced and highly organized Corporate Paralegal to join our growing Legal team. This individual will play a key role in supporting Mainspring’s corporate governance, securities and financing activities, legal operations, and other strategic…
Electrical Upgrades Technician
5 weeks agoMainspring Energy · Menlo Park, California, United States
On-site$29.00 – $38.00 an hourTrades & logisticsWe are searching for a well-organized, reliable electrical technician to join our growing team. They will be responsible for diagnosing and repairing electronics, reading work instructions, installing new equipment, and implementing electrical upgrades. You will run software,…
Updated 06 Nov 2026 09:37 UTC from the OptiTalent job library.