Mainspring Energy

Controller

• Manage the monthly consolidated financial close process, including ensuring all costs incurred are properly recorded, reviewing journal entries, account balance reconciliations and report preparation. Set targets for close timing and drive process efficiencies to improve availability of information.
• Manage and mentor a high-performing controllership team, ensuring continued development and success of the team.
• Drive the ongoing development/establishment of accounting policies and procedures and operational strategies. Make recommendations for changes as needed, ensure that company policies and procedures are followed, and establish the proper techniques to discover and prevent fraud.
• Participate in strategic financial projects including the enhancement or implementation of ERP and other related software.
• Collaborate cross-functionally on contract reviews to ensure that company objectives are achieved and revenue is recognized in accordance with GAAP.
• Serve as the primary contact with external auditors to ensure successful audit results and compliance.
• Serve as the ‘face of finance’ internally to support employees with incoming requests in areas of responsibility.
• Interact at all levels with internal and external stakeholders to produce timely, efficient and accurate month-end close as well as financial reporting.
• Assist the CFO in performing treasury functions such as cash allocation and movement between bank accounts.
• Lead the compilation of information for preparation of tax returns and filings as well as general review. Drive tax strategy and compliance for the organization.
• Review payroll prior to submission, ensuring accuracy and completeness. Drive process scalability for growing company.
• Maintain and further development of a strong control environment with a goal of eventually maintaining SOX-compliant controls.
• Responsible for hierarchy and scalability in chart of accounts and accuracy in the general ledger and financial statements.
• Analyze the effect of new accounting rules and study regulations and guidance to ensure correct application of Generally Accepted Accounting Principles.

Business Development Rep

• Originate and structure sales agreements with utilities and IPPs, drawing on direct experience of the project development and project financing process
• Develop strategic relationships with developers and IPPs to identify co-development, repowering, and utility-focused opportunities
• Manage multiple opportunities through the deal pipeline, resolving potential deal blockers with proactive communication, creativity, and strong organizational skills
• Create pitch decks, term sheets, and RFP responses to drive engagement, with support of marketing, sales engineering, and other teams
• Create project pro formas and collaborate with internal teams to refine product offerings, financing structures, and project delivery timelines
• Educate customers on key drivers, including ITC eligibility, utility tariff dynamics, and wholesale market rules, and evolving FERC issues
• Collaborate internally to align deal structures with project finance, project delivery, operations, and legal
• Travel extensively to build and maintain relationships with customers, partners, and internal teams. Typically 25-40%, with ability to flex on short notice for business critical needs

Director of Business Development, IPPs, IOUs

QA Engineer

• Develop and maintain trusting relationships with the assigned suppliers as well as our internal stakeholders
• Assess supplier capability via site visits and process audits for compliance to regulations, agreements, standards, and documented processes.
• Collaboratively qualify processes with Suppliers, Design Engineers, Supplier Quality Team and Incoming Inspection Team
• Actively participate in and lead new product development teams as it relates to supplier quality to support product and process design and development activities via leading the supplier risk management process
• Support the review/approve product and process change control documentation and specifications as it relates to assigned suppliers

Senior Staff Supplier Quality Engineer – Mechanical

Company Overview: Mainspring Energy revolutionizes power generation with the world’s most flexible onsite power generator. Backed by investors such as Khosla Ventures, Bill Gates, American Electric Power, and Lightrock. Vision: affordable, reliable, net-zero carbon grid. We welcome a broad range of backgrounds and talents. Job Overview: The Supplier Quality Team is responsible for supplier selection and performance monitoring as it relates to key supplier delivery and quality requirements. You will refine and execute improvements to the supplier audit and qualification process in concert with Supply Chain, Engineering and the QA team. You will work to develop and execute quality plans by utilizing APQP, PPAP and root-cause analysis on a regular basis. You are highly organized, communicative, and will thrive in a nimble, fast-paced environment that includes Engineering, R&D, Operations and Supply Chain.

Staff Supplier Quality Engineer - Mechanical

<div><b style=\"font-size: 18px\">Company Overview</b></div>...

Senior  Supplier Quality Engineer

Analytics Engineer

• The Linear Generator is a sophisticated, automated, and integrated system spanning a wide range of engineering disciplines including thermodynamics, mechanical, electrical, software, and controls.
• As a founding member of our Operations & Analytics Team, you will be part of a dynamic group that delivers the best product and experience that Mainspring Energy has to offer.
• This includes operation and monitoring of our fleet of Linear Generators (LGens), debugging issues, management of incident resolution and advanced data analysis aimed at improving our product and communicating on our fleet performance.
• This is a foundational role in a newly developing company function and there is an enormous opportunity to influence how this work is done now and into the future.
• The breadth of this role is perfect for an engineer who wants to use their advanced analytical and technical skills in a fast-paced and challenging environment.
• We are looking for an ambitious and curious individual excited to work at the interface of operations, systems engineering, and analytics.

Fleet Operations - Analytics Engineer

Manager

• Mainspring Energy is revolutionizing power generation with the world’s most flexible and adaptable onsite power generator, the Mainspring Linear Generator.
• The Mainspring Linear Generator is fuel flexible, ramps up and down to meet demand, and utilizes a flameless technology with near-zero NOx emissions.
• Mainspring Energy is rapidly scaling production of its breakthrough Linear Generator technology, necessitating a highly experienced and strategic Senior Staff Commodity Manager to lead global sourcing for graphite materials and mechanical components.
• This role is essential for developing and executing comprehensive sourcing strategies, managing supplier relationships, and ensuring the procurement of materials that meet stringent technical, quality, and commercial requirements.
• The ideal candidate will be accountable for the entire lifecycle of assigned commodities, including supplier identification, technical qualification, contracting, risk mitigation, and performance monitoring.
• Cross-functional collaboration with engineering, materials science, operations, and quality is essential to meet business objectives and drive continuous improvement.

Senior Staff Commodity Manager - Graphite & Mechanical Components

Sales

• Mainspring Energy is revolutionizing power generation with the world’s most flexible and adaptable onsite power generator, 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 technology with near-zero NOx emissions.
• Backed by top-tier investors such as Khosla Ventures, Bill Gates, American Electric Power, and Lightrock, 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.
• Mainspring Energy is seeking a strategic and technically hands-on Salesforce Platform Lead to own the direction, architecture, and development of our Salesforce ecosystem.
• This role will serve as the most senior Salesforce expert in the company, driving platform vision and execution while partnering closely with stakeholders across Sales, Marketing, Field Operations, and Enterprise Systems.
• As the platform and company mature, this role is expected to grow to lead a team of Salesforce admins, developers, and contractors. This is an ideal role for someone who thrives at the intersection of business strategy and technical execution—and who is excited to scale both the Salesforce system and the support team around it.

Salesforce Platform Lead - Enterprise Data Systems

Product Manager

• Mainspring Energy is revolutionizing power generation with the world’s most flexible and adaptable onsite power generator, the Mainspring Linear Generator.
• Commercial, industrial, and utility leaders are choosing Mainspring over traditional options like engines, turbines, and fuel cells.
• The Mainspring Linear Generator is fuel flexible, ramps up and down to meet demand, and utilizes a flameless technology with near-zero NOx emissions.
• Backed by top-tier investors such as Khosla Ventures, Bill Gates, American Electric Power, and Lightrock.
• Inspired by our vision of the affordable, reliable, net-zero carbon grid, Mainspring is rapidly expanding within the $816B global electricity equipment market.
• 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, Excellence without Ego, Proactive Collaboration.