Tax Manager

Thanks for your interest in Oklo! We are searching for a Tax Manager to join our team. Position Description Reporting to the Senior Director of Tax, this role will serve as a key contributor to enabling Company compliance with tax laws and regulations, maintaining a strong control environment, enhancing tax processes, and supporting strategic initiatives. The position requires a proactive, detail-oriented professional who can operate independently, partner cross-functionally, and continuously improve the efficiency, scalability, and accuracy of the Company’s tax function. The successful candidate will play a central role in the Company’s tax function, with primary responsibility for income tax accounting under ASC 740 and oversight of the end-to-end income tax compliance lifecycle. This role sits at the intersection of financial reporting and tax compliance, requiring both deep technical expertise and strong operational execution. As the owner of the Company’s tax provision process, the Tax Manager will ensure the accurate and timely reporting of income taxes in the financial statements, including the calculation of current and deferred taxes, evaluation of valuation allowances, and accounting for unrecognized tax benefits. This individual will be expected to exercise sound judgment in applying ASC 740 guidance to complex transactions and evolving business activities, while maintaining consistency and audit-ready documentation. In parallel, the Tax Manager will oversee the full tax compliance process across federal, state, and applicable international jurisdictions, managing external service providers and ensuring that all filings, payments, and related obligations are completed accurately and on schedule. This includes aligning compliance outputs with provision calculations and proactively identifying risks or discrepancies. Specific responsibilities may include: ASC 740 Income Tax Accounting Manage and deliver results for the quarterly and annual tax provision process, including preparation of ASC 740 calculations, supporting schedules, and coordination with external consultants. Perform the calculation and analysis of the following, including creation of supporting documentation and applicable research: Current and deferred tax provisions Valuation allowances and related support Uncertain tax positions and accounting for unrecognized tax benefits Effective tax rate (ETR) and variance analysis Financial statement tax footnote disclosures Manage and ensure accuracy of tax related general ledger accounts and oversee tax accounting controls and documentation. Identify, research, and conclude on proper tax treatment of significant or non-routine transactions in coordination with Accounting, Finance, and Legal teams. Support and interface with external auditors, including responding to technical inquiries and providing documentation. Tax Compliance Oversee the complete lifecycle of income tax compliance, including data gathering, preparation, review, and filing of U.S. federal, state, and international income tax returns prepared by third party providers, ensuring accuracy and timeliness of filings. Review tax returns for technical accuracy, completeness, and consistency with implemented processes, documentation, and variance analysis against the tax provision. Oversee fixed asset tax processes, including review of additions, disposals, depreciation calculations, and roll-forwards on quarterly and annual basis. Monitor and track compliance filing deadlines across jurisdictions to ensure timely submissions. Manage and ensure timely preparation and filing of U.S. state & local franchise and indirect tax returns, including sales and use, property, and other indirect tax filings. Monitor and implement responses to tax legislation and regulatory developments. Maintain and enhance internal controls over income tax processes, including SOX compliance where applicable. Assist with tax due diligence and integration activities related to mergers and acquisitions. Manage federal, state, and local tax audits and inquiries, serving as the primary point of contact with tax authorities and external advisors. Build positive relationships and interface productively with tax authorities to support efficient audits and issue resolution. Technology and Process Identify opportunities, evaluate, and implement tax process improvements, standardization, automation opportunities, and technology enhancements across the tax function. Partner cross-functionally with Accounting, Treasury, Legal, Procurement, and IT to strengthen tax processes, improve data quality, and support business initiatives. Develop and maintain comprehensive documentation of tax processes and methodologies. Ensure integrity and reconciliation of data between financial systems and tax reporting tools. Team Building Responsible for planning and creation of a team, including candidate evaluation and the development, coaching, and training of new hires. Familiar with skills and qualifications of successful tax professionals that can fill roles on the team. Invests time and energy to build relationships with team members to build strong culture and psychologically safe environment where team can thrive. Performs constructive reviews and evaluations of team members to ensure accountability and enable professional growth. Perform other duties and special projects as assigned. Minimum Qualifications: Bachelor’s degree in accounting or finance. CPA required; MBA or MST preferred. 7-10+ years of progressive experience in public accounting and/or corporate tax, including federal and state income tax for C Corporations; tax technology and transformation experience strongly preferred. 3+ years managing a team. Deep technical knowledge of ASC 740, U.S. federal and corporate tax laws. Experience with tax provision software (i.e., OneSource, Corptax), ERP systems (e.g., NetSuite, SAP, Oracle). Strong understanding of tax data inputs/outputs and downstream dependencies (ERP/GL, subledgers, consolidation, reporting). Knowledge of SOX/control environments and how to design auditable processes. Excellent written and verbal communication skills to simplify complex concepts for executive level leaders. Ability to manage multiple priorities and work independently in a fast-paced environment. Bonus Qualifications: Fast growth startup and public company experience. Experience with energy sector or tech company background is a plus. Experience commercializing First of a Kind (FOAK) technologies from an investor perspective. Experience with implementing AI in tax operations and automation. Willingness to relocate if required. Competencies The successful candidate will be an experienced tax professional that collaborates cross-functionally and can successfully operate within a growing and dynamic environment at the cross section of business objectives and tax reporting requirements, enabled by process and technology solutions. This role will contribute and support the Company’s growth strategy by leading efforts to ensure compliance with all reporting obligations while safeguarding the Company’s assets and value creation. We are looking for a Tax Manager that is: Experienced with ASC 740 Conducted and documented research on complex tax issues Strong interpersonal skills that facilitate cross-functional collaboration and teaming Passionate about clean energy An optimist at heart Passionate about making advanced fission and delivery of radio isotopes 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 who can write in a modern active voice, so make your cover letter compelling and write it well! Able to communicate effectively both verbally and in written form Willing to travel as required likely 1 week per month 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. About Oklo travel requirements: 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. About Oklo compensation: Salary: $145,000-$165,000 Salary may fall outside of the range provided and will be dependent on applicant experience. Oklo offers flexible time off, equity, competitive pay, 401k, health insurance, FSA, flexible work hours, and other benefits. We are looking to fill this position immediately! 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. If you receive suspicious outreach or have concerns about the authenticity of any communication claiming to be from Oklo, please contact us through the official channels listed on our website.