SlipstreamJobsFresh Startup & VC-Backed Jobs

Senior Originator - Public Power

Mainspring Energy - Remote - Remote - posted 2026-09-02

Apply on the company site

SlipstreamJobs tracks this role from the company's public career site. Apply directly on the employer's site.

Mainspring Energy manufactures fuel-flexible, low-emissions local power solutions (Linear Generators) for Fortune 500 companies, data centers, and utilities. This is an outward-facing origination role focused on driving commercial growth and transaction execution across the Public Power sector—municipalities, electric cooperatives, and investor-owned utilities (IOUs). You will serve as the primary commercial face of Mainspring in Public Power, responsible for sourcing, structuring, negotiating, and closing high-value commercial arrangements including equipment sales, long-term service agreements (LTSAs), capacity contracts, and project partnerships. You will leverage an established network of utility executives, procurement leads, board members, and energy traders to rapidly originate pipeline opportunities. Key responsibilities include: • Leading the full lifecycle of complex transactions from initial outreach through financial close • Representing Mainspring at industry conferences (APPA, NRECA, EEI, regional ISO meetings) and customer sites, commanding rooms and building authentic trust with senior decision-makers • Positioning Mainspring's Linear Generator as a solution for urgent utility needs: data center interconnection delays, load growth, generation retirement replacement, and firm capacity requirements • Structuring and negotiating term sheets, MOUs, equipment purchase agreements, and customized commercial structures with internal legal, regulatory, product, and finance teams • Leading responses to competitive solicitations (RFPs) and integrated resource planning (IRP) engagements • Feeding real-time market intelligence and customer pain points back to product, engineering, and executive leadership to influence roadmaps You will travel up to 50% for client dinners, conferences, site visits, and deal closures. REQUIREMENTS: Minimum Qualifications: • 12+ years of total experience in North American power or clean energy sectors • At least 6+ years of direct transaction experience in an outward-facing origination or commercial role with direct access to counterparties • Proven history of originating, negotiating, and closing complex, high-value energy transactions (equipment sales, PPAs, BTAs, capacity contracts, large infrastructure agreements) with municipalities, cooperatives, and/or IOUs • Deep working knowledge of Public Power procurement processes, G&T (Generation & Transmission) co-op structures, board governance, RTO/ISO market rules, and utility financial models • Willingness and ability to travel up to 50% Behavioral & Relationship Attributes: • Highly charismatic, extroverted, and confident in boardrooms and informal settings; exceptional ability to build instant rapport with senior utility leaders • Self-starter with an active, portable network of utility, co-op, and municipal decision-makers • Deep understanding of power economics, capacity markets, spark spreads, tax credits (IRA/OBBBA), project finance (NPV, IRR), and grid interconnection mechanics • Ability to orchestrate internal technical, regulatory, and finance experts to solve complex customer challenges Preferred Qualifications: • Bachelor's degree in Business, Engineering, Economics, or related field (MBA or advanced degree preferred) • Deep existing network across regional wholesale markets (PJM, ISO-NE, NYISO, MISO, ERCOT, SPP, SERC, or WECC)

Similar roles