Controller

About the Company General Matter is enriching uranium in America. Our goal is to design, build, and operate the world’s lowest-cost enrichment services in the United States. Our mission is to restore America’s ability to produce nuclear fuel—fuel that will power AI, advanced manufacturing, critical industries, and the next generation of nuclear reactors. Ultimately, our work will help power national ambitions and enable a high-energy society. We were incubated by Founders Fund, like Anduril and Palantir before us, and are backed by top-tier investors. Our lean, world-class team of engineers and operators is applying a first-principles approach to solving the problem of nuclear fuel production. We are a mission-driven company with a culture of urgency, accountability, and transparency. Help us build a high-energy society by making the cleanest, safest form of baseload energy the most affordable. Controller As General Matter’s Controller, you will play a pivotal role in building and scaling the company’s accounting function. You will lead all core accounting operations, design and maintain rigorous accounting systems and controls, and ensure readiness for audits in a highly regulated environment. This role requires deep expertise in GAAP and Cost Accounting Standards (CAS), along with hands-on experience operating within a CAS-covered organization. The ideal candidate brings a strong foundation in public accounting and thrives in building structure, driving compliance, and supporting a fast-growing, high-performing organization. Responsibilities Lead all financial close and reporting activities, ensuring timely, accurate financial statements in compliance with US GAAP, CAS, and applicable regulations. Own the company’s CAS compliance framework, including interpretation and application of CAS, maintenance of Disclosure Statements, and design of compliant cost accumulation and allocation methodologies. Serve as primary liaison for external audits and reviews, maintaining audit-ready documentation and responding to financial, CAS, and regulatory inquiries. Design, document, and maintain accounting policies, procedures, and internal controls that support scale, transparency, and regulatory compliance. Oversee accounting systems and infrastructure, including ERP and integrated tools, driving process improvements that increase efficiency, accuracy, and control. Support pricing, cost proposals, and contract compliance by providing accurate, compliant cost data, indirect rates, and financial analysis. Hire and lead the accounting team while partnering cross-functionally, translating accounting and CAS requirements into clear guidance that supports operational and strategic decision-making. Basic Qualifications Bachelor’s degree in Accounting, Finance, or related field. 8+ years of progressive accounting experience, including public accounting experience (e.g., Big 4 or mid-tier/regional firm). Demonstrated knowledge of Cost Accounting Standards (CAS) and cost accounting practices. Strong understanding of US GAAP and internal control frameworks. Experience supporting external audits and preparing detailed audit documentation. Hands-on experience with ERP/accounting systems and related tools. Advanced Excel skills and strong overall systems aptitude. Preferred Skills and Experience Bachelor’s degree in business, finance, economics, or engineering. Advanced skills in Microsoft Excel, applied business statistics, and general modeling experience of complex non-linear systems. Experience in a manufacturing or technology environment. Familiarity with reporting, visualization, intelligence, and analysis tools (SQL, Power BI, Tableau, etc.). Strong presentation skills with the ability to regularly interface with executive management. Experience with presenting analytical results in both verbal and written form across a multi-disciplinary organization. Ability to frame unstructured and complex analytical problems for a broad audience. Additional Requirements Willing to work extended hours and weekends as needed This position is based in Los Angeles, CA and requires being onsite full-time – hybrid and remote work will not be considered. Equal Opportunity Employer General Matter is an Equal Opportunity Employer; employment with General Matter is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability or any other legally protected status. Compensation and Benefits The base salary range for this role is $160,000–$230,000 annually. Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. Please note that the stated salary range is an estimate and may be adjusted based on market conditions, business needs, or other factors. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan.

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