FP&A Manager — Services

About Mainspring Mainspring Energy manufactures and delivers fuel-flexible, low-emissions local power solutions that rapidly add new capacity and deliver reliable, affordable, and sustainable electric power. The company began commercial shipments of its Mainspring Linear Generators in 2020 and today has hundreds of megawatts in advanced development and field operations for leading Fortune 500 companies, data centers, and utilities. Mainspring also partners with global energy leaders including AEP, NextEra Energy Resources, Schneider Electric, and more. The core values that ground our work, guide our decisions, and connect us together: Pragmatic Optimism Excellence without Ego Proactive Collaboration

We are seeking an experienced FP&A professional to support our Services business unit, which services and maintains our hardware/equipment fleet in the field (Operations & Maintenance - O&M) . This role will partner closely with Operations, Field Service, and Supply Chain leadership to drive financial planning, forecasting, and performance analysis specific to a linear generator. The ideal candidate has 5-7 years of FP&A experience, ideally within a hardware, equipment, industrials, or asset-heavy services environment, and is comfortable translating operational metrics (uptime, service costs, spare parts, field labor) into financial outcomes.

Own the annual budgeting, quarterly forecasting, and long-range planning process for the business line, including revenue, cost of service, and margin analysis Partner with Operations and Field Service leaders to build and maintain cost models covering field labor, spare parts/inventory, truck rolls, warranty, and third-party service contracts Track and report on key O&M/hardware operating metrics (e.g., fleet uptime, mean time to repair, cost per unit serviced, service margin by contract/customer) and connect them to financial performance Prepare monthly management reporting packages, including variance analysis (actuals vs budget/forecast) with clear narrative on drivers Support pricing and contract profitability analysis for service agreements, maintenance contracts, and warranty programs Build and maintain financial models to evaluate capital investments (equipment, tooling, spare parts inventory) and business cases for new service programs or geographic expansion Partner with Accounting on month-end close, ensuring accurate cost allocation and revenue recognition for service/maintenance contracts Identify cost-saving and margin-improvement opportunities across the O&M cost structure Develop dashboards and self-service reporting tools to give operational leaders real-time visibility into their financial performance Support ad hoc analyses for senior leadership, including board and investor reporting materials as needed

Required: Bachelor's degree in Finance, Accounting, Economics, or related field 7-10 years of progressive FP&A or corporate finance experience Experience supporting a hardware, equipment, industrials, field services, or asset-intensive business (O&M, install base, or service organizations strongly preferred) Strong financial modeling skills (advanced Excel required; experience building models from scratch) Experience with budgeting/forecasting tools and ERP systems Ability to translate operational/technical metrics into financial insights for non-finance stakeholders Strong communication skills; comfortable presenting to senior operational and finance leadership Preferred: MBA or CFA a plus, not required Hardware/manufacturing background Familiarity with cost accounting and revenue recognition as it applies to maintenance/warranty agreements Experience with BI/reporting tools