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Deep Fission is a nuclear technology company pioneering deep borehole pressurized water reactors. The company recently completed private placement financing and an Alternative Public Offering, and now operates as a public company while maintaining startup agility.
The Financial Reporting Manager will manage day-to-day execution of external financial reporting with the SEC and serve as a key technical accounting resource within the Finance organization. Reporting to the Controller, this is a senior individual contributor role with significant responsibility for SEC filings, technical accounting research, equity administration, and internal controls. The role works closely with the Controller on significant accounting matters, disclosures, and external reporting decisions.
Key Accountabilities:
- Prepare quarterly and annual SEC filings (Forms 10-Q and 10-K) and support other SEC filings including proxy statements, registration statements, and Forms 8-K with financial information
- Coordinate and review XBRL and iXBRL tagging and other aspects of the external filing process
- Research and document accounting positions on complex or non-routine transactions; prepare technical accounting memoranda
- Monitor new and emerging FASB and SEC guidance, evaluate applicability, and lead or support implementation
- Serve as day-to-day technical accounting resource across Finance
- Implement and maintain Morgan Stanley Shareworks as the equity administration platform; administer equity activity including grants, RSU vesting, stock option exercises, and other equity transactions
- Partner with Legal, People Operations, Payroll, and equity service providers on accurate and timely processing and reporting
- Prepare and maintain accurate supporting calculations, reconciliations, and disclosures related to stock-based compensation
- Help design, document, and execute the Company's internal control over financial reporting (ICFR) program; manage day-to-day operation of key controls
- Coordinate with external auditors and other departments to support Sarbanes-Oxley (SOX) readiness
- Serve as key day-to-day contact for external auditors during quarterly reviews and annual audits
- Manage prepared-by-client lists, supporting schedules, and technical inquiries
- Support month-end close including journal entries, account reconciliations, and supporting schedules
- Draft and maintain accounting policies, technical documentation, and reporting procedures; identify and implement process improvements
- Assist Controller and broader Finance organization on other accounting matters, special projects, and business needs
The role is fully remote with quarterly in-person travel for company offsites. It requires ability to work independently in a remote-first, cross-functional environment and partner effectively with senior Finance, Legal, People Operations, and external audit stakeholders. Occasional overtime is anticipated, particularly around quarterly and annual close and SEC filing deadlines.
Requirements:
- Bachelor's degree in Accounting or closely related field
- 6+ years of progressive accounting and financial reporting experience
- Hands-on experience preparing and/or reviewing Forms 10-K and 10-Q and related SEC financial statement disclosures
- Demonstrated experience with technical accounting research and preparation of clear accounting memoranda
- Experience with stock-based compensation accounting under ASC 718 and equity-related accounting
- Experience supporting or operating within an internal control over financial reporting (ICFR) and Sarbanes-Oxley (SOX) environment
- Experience working directly with external auditors during quarterly reviews and annual audits
- Strong working knowledge of U.S. GAAP and SEC reporting requirements
- Ability to interpret authoritative accounting guidance and translate complex accounting matters into clear technical conclusions, accounting memoranda, and disclosures
- Strong written communication skills, particularly for technical accounting documentation and external reporting
- High degree of attention to detail, with strong analytical and problem-solving skills
- Ability to independently manage SEC reporting timelines, multiple priorities, and cross-functional dependencies as the Company scales
- Must be a U.S. person eligible to meet Department of Energy (DOE) Export Control requirements under 10 CFR 810
Preferred:
- CPA license
- Big 4 or national public accounting experience
- Corporate accounting experience within a public, newly public, or high-growth company
- Experience with equity administration platforms such as Morgan Stanley Shareworks, Carta, or similar systems
- Experience researching or accounting for complex equity instruments, leases under ASC 842, and asset retirement obligations under ASC 410
- Experience with XBRL and SEC filing processes and service providers
