OptiTalent · Job Finder
Jobs in United States
68 open roles read nightly from companies’ own hiring pages. Each one links to the original ad.
21–40 of 68 jobs
Counts are paused for a minute after many searches; results are still current.
Electrical R&D Technician
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteEntry level$28.00 – $34.00 an hourTrades & logisticsThe Electrical R&D Technician will be someone with a solid baseline of experience in electrical fabrication, assembly, and troubleshooting. They will have had experience in an R&D environment beyond just circuit board work. They will be experienced in working on high voltage…
Field Service Manager
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteManager$128K – $150K a yearOperationsAs a Field Service Manager at Mainspring Energy, you will lead Field Service Supervisors and support the overall performance, availability, and reliability of Mainspring's operating fleet. You will translate fleet performance objectives into effective field execution by…
Cost Engineer
2 months agoMainspring Energy · Menlo Park, California, United States
HybridEntry level$86K – $115K a yearEngineeringWe are seeking a motivated and detail-oriented Cost Engineer to join our SC PM & Cost Engineering team. This position provides an excellent opportunity to gain hands-on experience in supply chain cost analysis and optimization strategies, should-cost modeling, and capacity…
Senior Staff Project Strategist
2 months agoMainspring Energy · Menlo Park, California, United States
HybridLead / staff$196K – $231K a yearOperationsAt Mainspring, Product Managers sit at the intersection of engineering, sales, marketing, installation, and maintenance. The Project Strategist sits one step further out, at the boundary between the product Mainspring repeats at every large site and the full site a customer is…
Senior Machinist / R&D Specialist
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$50.00 – $59.00 an hourTrades & logisticsMainspring Energy is searching for a motivated Sr. Machinist capable of supporting the needs of our engineering development lab at our Menlo Park facility. In this position you will work with a small team and manage the daily workload and respond to projects needing precision…
Electronics Returns & Repair Manager
2 months agoMainspring Energy · Menlo Park, California, United States
On-site$130K – $182K a yearThe Manager – Depot Operations & Field Return Repair is responsible for the end-to-end lifecycle management of all field-returned electronic control assemblies supporting the installed fleet of Linear Generators (LGENs).
Manager, Technical Writing Team
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteManager$117K – $137K a yearEngineeringAt Mainspring, technical documentation isn't just a support function—it’s the backbone of our operations. You won’t be tethered to a desk; you’ll be on the floor, working directly with our hardware and engineering teams. This role offers the unique opportunity to lead and…
Senior Software Engineer in Test
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteSenior$135K – $159K a yearEngineeringDo you enjoy diving into building new automation systems and formulating new testing approaches in areas like cloud computing, networking, IoT with real time operating systems, controls, simulations (MIL, SIL, PIL), and algorithms? We combine this technology with our company…
R&D Test Engineer
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteMid level$108.8K – $123.6K a yearEngineeringMainspring is seeking an open-minded, curious, and highly motivated R&D Test Engineer who likes to solve challenging cross-functional problems in both a research and production environment. In this role, you will design and execute tests on the Linear Generator, focusing on new…
Senior/Staff Materials Process Engineer
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteLead / staff$126K – $178K a yearEngineeringWe have a high-impact opportunity for a 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 at the…
Staff Electrical Engineer, Electronics Design
2 months agoMainspring Energy · Menlo Park, California, United States
On-siteLead / staff$181K – $213K 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,…
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…
Updated 07 Nov 2026 10:21 UTC from the OptiTalent job library.