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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.
41–60 of 78 jobs
Senior Electrical Engineer, Electronics Design
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$147K – $173K a yearEngineeringAre you an innovative hardware leader who thrives on driving cutting-edge electronics from initial concept to production? Do you prefer the challenge of owning complex, low-voltage control systems and guiding cross-functional teams through technical hurdles over routine,…
Staff Materials and Process Engineer
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteLead / staff$150K – $178K a yearEngineeringWe have a high-impact opportunity for a Staff Materials and Process Engineer who wants to join a world-class engineering team and help scale production of the Linear Generator. The materials and process team at Mainspring Energy works on complex development projects which are…
Senior Materials and Process Engineer
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$126K – $148K a yearEngineeringWe have a high-impact opportunity for a Senior Materials and Process Engineer who wants to join a world-class engineering team and help scale production of the Linear Generator. The materials and process team at Mainspring Energy works on complex development projects which are…
Director, Reliability Engineering
2 months agoMainspring Energy · Menlo Park, California, United States
HybridDirector$200K – $265K 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. We're looking for a reliability engineering leader to build and run the function that evaluates design risk and…
Senior Embedded Software Manager
2 months agoMainspring Energy · Menlo Park, California, United States
HybridSenior$185K – $220K a yearEngineeringMainspring Energy’s revolutionary linear generator is a sophisticated robot. Inside the generator is a network of computers combining embedded Linux and real-time bare metal applications. These orchestrate the critical tasks of shaping control signals and collecting data from a…
Embedded Software Manager
2 months agoMainspring Energy · Menlo Park, California, United States
Hybrid$170K – $200K a yearEngineeringMainspring Energy’s revolutionary linear generator is a sophisticated robot. Inside the generator is a network of computers combining embedded Linux and real-time bare metal applications. These orchestrate the critical tasks of shaping control signals and collecting data from a…
Senior Engineering Manager
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteManager$187K – $220K a yearEngineeringAs a Senior Engineering Manager at Mainspring, you will lead a high-performing team in a fast-paced startup environment to build critical software that integrates our Linear Generators into global energy infrastructure. You will focus on building and enabling commercial-grade…
Principal Mechanical Engineer
3 months agoMainspring Energy · Menlo Park, California, United States
On-siteLead / staff$210K – $247K a yearEngineeringMainspring is seeking a Principal Mechanical Engineer to serve as a company-level technical authority in a critical mechanical engineering domain for our Linear Generator platform. In this role, you will shape long-term technical direction, define or strongly influence…
Senior Staff Mechanical Engineer
3 months agoMainspring Energy · Menlo Park, California, United States
On-siteLead / staff$186K – $225K a yearEngineeringMainspring is seeking a Senior Staff Mechanical Engineer to shape technical direction across multiple teams, systems, or major program areas within our Linear Generator platform. In this role, you will guide system-level design decisions, resolve complex cross-functional…
Senior Mechanical Engineer
3 months agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$140K – $165K a yearEngineeringMainspring is seeking a Senior Mechanical Engineer to own significant mechanical engineering projects, subsystems, or technical workstreams for our Linear Generator platform. In this role, you will develop robust mechanical designs, drive projects through the full design cycle,…
Mechanical Engineer
3 months agoMainspring Energy · Menlo Park, California, United States
On-site$119K – $140K a yearEngineeringMainspring is seeking a Mechanical Engineer to own defined-scope mechanical engineering tasks, workstreams, or moderate-complexity projects for our Linear Generator platform. In this role, you will design mechanical hardware, support analysis and testing, drive assigned work…
Director, Regulatory
3 months agoMainspring Energy · Menlo Park, California, United States
RemoteDirector$233K – $275K a yearLegal & complianceMainspring Energy is seeking an experienced legal or regulatory professional to lead the Company's strategy on environmental, energy, and regulatory matters. Reporting to the General Counsel, this individual will drive regulatory strategy, policy engagement, and compliance…
Staff Software Controls Engineer - Site Control
3 months agoMainspring Energy · Menlo Park, California, United States
On-siteLead / staff$161.5K – $190K a yearEngineeringMainspring Energy is seeking a highly skilled Staff Controls Software Engineer to develop and test the critical software that integrates our Linear Generators into global energy infrastructure. As an individual contributor (IC) within a high-performing Scrum team, you will…
Mainspring Energy · Menlo Park, California, United States
HybridLead / staff$135K – $160K a yearEngineeringWe have a high impact opportunity for a Modeling and Simulation Engineer to support the design, test, and manufacture of reliable and efficient linear generators at Mainspring Energy. On the system modeling and simulation team, you will have a central role in refining the way…
Staff CFD Modeling Engineer
3 months agoMainspring Energy · Menlo Park, California, United States
HybridLead / staff$160K – $190K a yearEngineeringDo you have a favorite upwinding technique for hyperbolic PDEs? We have a high impact opportunity for a CFD Modeling Engineer to support the design, test, and manufacture of reliable and efficient linear generators at Mainspring Energy. On the system modeling and simulation…
Staff Mechanical Engineer
3 months agoMainspring Energy · Menlo Park, California, United States
On-siteLead / staff$172K – $203K a yearEngineeringMainspring is seeking a Mechanical Engineer to own defined-scope mechanical engineering tasks, workstreams, or moderate-complexity projects for our Linear Generator platform. In this role, you will design mechanical hardware, support analysis and testing, drive assigned work…
Staff Reliability Engineer
3 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…
Staff Software Test and Automation Engineer
3 months agoMainspring Energy · Menlo Park, California, United States
HybridLead / staff$140K – $165K 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…
Mainspring Energy · Menlo Park, California, United States
On-siteLead / staff$151.4K – $178K a yearEngineeringMainspring is revolutionizing energy generation. As the Staff Technical Program Manager for Software Engineering, you are the operational catalyst for our most critical software initiatives. Operating as the 'Chief of Staff' for execution, you translate high-level strategy into…
Senior Failure Analysis Engineer
3 months agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$117K – $138K a yearEngineeringOur Linear Generator is a sophisticated system integrating a wide range of engineering disciplines, including thermodynamics, mechanical, electrical, software, and controls. To support our rapid transition into volume manufacturing we are actively expanding the scope and size…
Updated 06 Nov 2026 09:37 UTC from the OptiTalent job library.