Senior Accountant

Thanks for your interest in Oklo! We are searching for a Senior Accountant to join our team. Position Description The Senior Accountant will be a key member of Oklo's accounting team, with primary responsibility for preparing and posting journal entries and completing timely, accurate account reconciliations as part of the monthly and quarterly close process. This role will own assigned close activities, investigate and resolve reconciling items, maintain clear supporting documentation, and help ensure the general ledger is complete and accurate. The successful candidate will be detail-oriented, organized, and able to meet close and SEC reporting deadlines while partnering effectively with teams across the business. Specific responsibilities may include: Prepare and post recurring and non-recurring journal entries in NetSuite, including accruals, prepaids, allocations, reclassifications, and other month-end adjustments Maintain complete journal-entry support and ensure entries are accurate, appropriately approved, and posted within the close timeline Complete assigned balance sheet and income statement account reconciliations in FloQast and tie balances to the NetSuite general ledger Research, document, and resolve reconciling items and unusual account activity on a timely basis Own assigned monthly and quarterly close tasks in FloQast and proactively communicate status, issues, and dependencies Run and analyze NetSuite general ledger, trial balance, and transaction-detail reports to support close activities and account reconciliations Prepare account roll-forwards, supporting schedules, and variance analyses for management and financial reporting review Partner with accounts payable, payroll, procurement, and other business teams to obtain complete and accurate information for journal entries and reconciliations Support quarterly and annual financial reporting activities, including schedules used in SEC reporting Execute assigned internal controls and maintain documentation in accordance with company policies and SOX requirements Provide schedules and supporting documentation to internal and external auditors and respond to audit requests Identify opportunities to improve, standardize, and automate journal-entry, reconciliation, and close processes Assist with accounting research and special projects, including documenting conclusions and proposed accounting treatment Perform other duties as assigned Minimum Qualifications: Bachelor's degree in accounting, finance, or a related field Three to five years of progressive general accounting experience, including hands‑on month‑end close responsibilities Demonstrated experience preparing and posting journal entries and completing balance sheet account reconciliations Strong knowledge of U.S. GAAP and proficiency with Microsoft Excel Bonus Qualifications: Big 4 Preferred, CPA is a plus Master’s degree in accountancy Fast growth startup or public company experience Hands‑on experience using NetSuite for general ledger accounting and financial reporting Hands‑on experience using FloQast for account reconciliations and close management Experience reconciling and recording Stock Based Compensation & Payroll We are looking for someone that is: Close ownership - takes responsibility for assigned tasks and consistently meets monthly and quarterly close deadlines Attention to detail - prepares accurate journal entries and reconciliations supported by clear, complete documentation Analytical thinking - understands account activity, identifies unusual items, and explains period-over-period changes Problem solving - researches and resolves reconciling items and accounting issues in a timely manner Organization - manages multiple accounts, schedules, and deadlines in a fast‑paced close environment Systems proficiency - works efficiently in NetSuite, FloQast, and Excel and can quickly learn new accounting tools Communication - clearly communicates close status, open items, and support needs to accounting and cross‑functional stakeholders Process improvement - identifies practical ways to strengthen controls, improve accuracy, and shorten the close process Critical for Oklo: Passionate about clean energy Passionate about making advanced fission a reality Willing and able to learn quickly Willing to think differently and do things in new ways Comfortable in a fast‑paced, highly iterative startup environment Excited to think creatively, critically, and reflectively about the problems they are solving while not leaning only on what has been done before Willing to propose novel and creative solutions to technical problems An excellent writer in a modern active voice, so make your cover letter compelling and write it well! Able to communicate technical content and results verbally Who you are: A startup person : You aren't driven by titles or hierarchy, and prefer efficiency to excess process. You don't need or expect to have a lot of guidance but you enjoy working in a fast‑paced team. If you prefer the culture and feel of a large organization, that is great, but you likely won’t enjoy working with us! There is plenty of important work and plenty of good opportunities with organizations like that. Motivated: You are self‑motivated. You bring an enthusiasm to the team, and imbue a sense of passion that goes beyond clocking in and clocking out. This isn’t about a fake or arbitrary “pieces of flair” mentality or lack of work‑life balance! It is about being a part of the vision and feeling a part of reaching team goals. A team‑player: Oklo genuinely is a team. We aren’t about taking credit for ourselves, and we aren’t about pushing blame to others. We do incredible things because we work as a team. An excellent communicator: We need a person who is not only technically competent but also a clear and upbeat communicator. Creative: Being creative means that when things fall outside clear scopes or processes or problems arise without clear solutions, you are able to identify it as well as invent ways to solve a problem or fill a need without micromanagement. The successful person in this job will not only be creative, but also enjoy being creative and solving open‑ended problems which may change day‑by‑day. Detail‑oriented: This focus is a big part of excellence, consistency, and quality. Excellent grammar and spelling matter for both good communication as well as the image of the company that we put forward. Oklo requires remote employees to travel to headquarters (Santa Clara, CA) twice a quarter annually, based on business or team needs, including attendance at team meetings, off‑sites, and other company events or gatherings. For the first two weeks of onboarding, employees are required to be in person at headquarters in Santa Clara, CA. Oklo offers flexible time off, equity, bonuses, competitive pay, 401(k), health insurance (with employer contribution), HSA, FSA, flexible work hours, wellness credits, and other benefits. This position may involve access to information subject to U.S. export control laws. Only applicants who meet the definition of a U.S. person under applicable laws may be eligible. About Oklo Inc.: Oklo Inc. is developing fast fission power plants to deliver clean, reliable, and affordable energy at scale; establishing a domestic supply chain for critical radioisotopes; and advancing nuclear fuel recycling to convert nuclear waste into clean energy. Oklo was the first to receive a site use permit from the U.S. Department of Energy for a commercial advanced fission plant, was awarded fuel material from Idaho National Laboratory, and submitted the first custom combined license application for an advanced reactor to the U.S. Nuclear Regulatory Commission. Oklo is also developing advanced fuel recycling technologies in collaboration with the U.S. Department of Energy and U.S. National Laboratories. #CHOP: Oklo’s Values Collaboration : We go further, together. We bring diverse perspectives, listen actively, and build trust through transparency and respect. We work across disciplines, sharing ownership to turn complex challenges into shared successes. Humility : We are team players who act for the good of the company and for the world. We are focused on our mission, not personal recognition. Ownership : We take pride in what we do and how we do it. We are proactive in finding solutions and see tasks through to completion. We are committed to delivering on our promises to provide clean, reliable, and affordable energy. Pathfinding : We chart new ground where no path exists by approaching challenges with curiosity, courage, and creativity while navigating ambiguity. Candidates should be aware that employment may be contingent upon successful completion of a drug screening, and employees may be subject to drug testing at any time in accordance with company policy and applicable laws. Recruitment Fraud Disclaimer Oklo is aware of recent recruitment fraud attempts targeting job seekers. Please be cautious of anyone claiming to represent Oklo who does not contact you from an official Oklo email address. All legitimate communications from our recruiting team— including application updates, interview requests, and job offers — will come exclusively from an @oklo.com email. Oklo will never ask for sensitive personal information, payments, or account credentials during the hiring process. 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