Local Marketing Intern Jobs

The Rings team owns one of the hardest technical problems in the Linear Generator: a piston and ring system that seals without liquid lubricant. Getting this right is foundational to the product’s low emissions and maintenance business model. The design space is demanding, with…

Do you love thermodynamics and dynamic system control? Have you thought about thermodynamic cycles as both continuous and discrete dynamic systems? As other industries convert their thermodynamic machines to electromagnetic machines and electrify their platforms, would you like…

Are 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,…

For those inclined, there are ample growth opportunities within Mainspring, and we offe Responsibilities Mechanically repair and/or perform maintenance on components and assemblies that make up our generators in accordance with procedures and build checklists in order to meet…

Field Service Technician (Long Island, NY) at Mainspring Energy in Long Island, New York, United States. On-site · $27 – $36/hr.

Field Service Technician (Worcester, MA) at Mainspring Energy in Worcester, Massachusetts, United States. On-site · $27 – $36/hr.

It all started with an idea at Block in 2013. Initially built to take the pain out of peer-to-peer payments, Cash App has gone from a simple product with a single purpose to a dynamic ecosystem, developing unique financial products, including Afterpay/Clearpay, to provide a…

As a New Grad Product Designer, you’ll join and learn from designers shaping this new practice — one where AI is nat

We are seeking a highly reliable and detail-oriented Operations Support Specialist to monitor system alerts, respond promptly to issues, and execute defined troubleshooting actions based on established flowcharts. This position requires strong problem-solving skills, comfort…

As a Field Service Programs & Operations Engineer at Mainspring Energy, you will serve as a technical leader supporting the Operations & Maintenance organizations. You will bridge Field Service, Operations, Quality, and Engineering by translating field challenges into practical…

Mainspring is seeking a Mechanical Drafter to support our engineering team for our Linear Generator platform. In this role, you will build practical drafting skills by supporting CAD modeling and drawing work for COTS (Commercial off-the-shelf) parts, detailing out custom parts…

The Package R&D Technician will be someone with a solid baseline of experience in fabrication and assembly. They will have had experience in an R&D environment where work instruction may not be fully defined and collaboration with engineers is required to achieve the goals of a…

The 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 and…

As 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 ensuring…

As a Product Design Intern, you’ll get to work on real projects that impact our customers, merchants, and Dashers. Y