Counsel, Business

Company Overview

Mainspring Energy is revolutionizing power generation with the world’s most flexible and adaptable local power generation technology, the Mainspring Linear Generator. Commercial, industrial, and utility leaders are choosing Mainspring over traditional options like engines, turbines, and fuel cells to quickly and reliably deliver local power for EV charging, commercial facilities, data centers, and grid‑scale operations. The Mainspring Linear Generator is fuel flexible, ramps up and down to meet demand, and utilizes a flameless reaction with near‑zero NOx emissions.

Backed by top‑tier investors including Khosla Ventures, Bill Gates, American Electric Power, Lightrock, and General Catalyst, Mainspring designs, manufactures and delivers its products to customers across the U.S. today, and we’re quickly scaling for international expansion.

Inspired by our vision of the affordable, reliable, net‑zero carbon grid, Mainspring is rapidly expanding within the $816B global electricity equipment market, and we’re hiring the best talent to meet growing customer demand around the globe. We welcome a broad range of backgrounds, experiences, and talents to bring fresh perspectives and ongoing innovation to our customers.

We are looking to build relationships with people who share our values:

Pragmatic Optimism. Building a new category of world‑class power generation requires the optimism of ambition and creativity, balanced with practicality to solve problems efficiently. The challenges that arise are opportunities for growth.

Excellence without Ego. We bring expertise and commitment to creating the best customer experience, from sales to deployment and service, just as we apply deep technical rigor to building and delivering world‑class products. We strive for excellence and behave as leaders with the humility to acknowledge our challenges, both collectively and as individual contributors.

Proactive Collaboration. The integration and cross‑disciplinary nature of Mainspring’s business requires intentionally seeking out others who bring different skills, perspectives, and priorities. Our culture of inclusion and respect extends beyond our team to interactions with our partners and customers.

More information can be found at

Mainspring is seeking a versatile, business‑minded attorney to join our Legal team. You will be a critical member of Mainspring’s team as an accomplished transactional attorney who has the skill and versatility to flex between supporting a wide range of contracts, negotiations, and advisory work. In this role, you will not only draft and negotiate agreements, but also serve as a strategic partner to internal stakeholders and a wide range of vendors, customers, and strategic partners.

As a key member of the legal organization, you will have the opportunity to drive a tremendous impact by helping to create and shape the legal infrastructure of this area of the business. You are a problem solver, skilled communicator, relationship builder, and have a track record of success as a strategic lawyer operating in a dynamic environment.

• Strategic Advisory: Provide thoughtful, risk‑balanced, and business‑minded advice to internal stakeholders on a wide range of complex contracts, such as equipment and project sale agreements, operation and maintenance contracts, development services agreements, EPC Agreements, financed offerings, and various supporting agreements
• Operational Excellence: Work closely with stakeholders across the company to architect and refine contract forms, templates, and playbooks, as well as scalable processes to support these tools
• Cross‑Functional Partnership: Partner deeply with Sales, Finance, Project Delivery, Operations and other teams to drive execution of high‑stakes commercial agreements
• Negotiation Leadership: Lead end‑to‑end contract negotiations for various commercial agreements with customers in the commercial and industrial, data center, governmental, and utility sectors, balancing legal protection with business velocity
• Knowledge Sharing: Develop and deliver training and other materials to elevate the legal IQ of the…