Senior Accounting Manager at Radiant in El Segundo, CA

Job description

About Radiant Radiant is an El Segundo, CA-based startup building the world’s first mass-produced, portable nuclear microreactors. Rising energy demand is straining the U.S. grid and driving up utility costs, emissions, and interconnection backlogs. Radiant decentralizes energy, producing power close to where it’s used. Its first reactor, Kaleidos, is a factory-built, 1-megawatt, fail-safe microreactor that can be transported by land, sea, or air and runs up to 5 years without refueling. Deployed locally without a decade-long build or permitting fight, Kaleidos provides independent power for critical infrastructure like military bases, data centers, hospitals, and remote sites. Founded in 2020, Radiant is under contract to deliver power to the U.S. Army, Air Force, Navy, and has pre-order agreements with Equinix, with deployments beginning in 2028. About the Role We are seeking an experienced Accounting Manager to lead and manage day-to-day accounting operations, ensure compliance with GAAP, and support the month-end close and reporting processes. This role will oversee areas such as general ledger maintenance, fixed assets, inventory, accruals, payroll accounting, and financial reporting. The ideal candidate has strong technical accounting knowledge, attention to detail, and the ability to manage and mentor staff while working cross-functionally. Responsibilities & Duties: • Manage daily accounting operations including fixed assets and bank reconciliations. • Manage month-end and year-end close processes and ensure timely and accurate financial reporting. • Review and approve journal entries, account reconciliations, and supporting schedules. • Maintain and monitor accounting policies and internal controls to ensure compliance with GAAP. • Manage accounting for fixed assets, including capitalization, depreciation, and disposals. • Oversee inventory accounting processes and ensure accurate COGS recognition and valuation. • Support audit processes, including preparation of schedules and documentation for external auditors. • Assist in implementing new systems, tools, or process improvements to enhance the efficiency and accuracy of the accounting function. • Collaborate with FP&A, procurement, operations, and HR on cross-functional initiatives and reporting. • Lead, mentor, and develop junior accounting staff. Required Qualifications & Skills: • Bachelor’s degree in Accounting, Finance, or related field (CPA preferred). • 5+ years of progressive accounting experience, including at least 2 years in a supervisory or management role. • Strong understanding of U.S. GAAP and internal controls. • Experience with ERP systems (e.g., NetSuite, SAP, Oracle, Microsoft Dynamics, ION). • Advanced Excel skills (pivot tables, lookups, etc.) • Excellent analytical, organizational, and communication skills. • Ability to work independently, manage multiple priorities, and meet tight deadlines. Desired Qualifications & Skills: • Experience in government contracting, technology, manufacturing. • Prior involvement in system implementations or upgrades. • Exposure to multi-entity or global accounting structures. • Familiarity with ASC 606, ASC 842, and other relevant accounting standards. Additional Requirements: • Must be willing to work extended hours and weekends as necessary to accomplish our mission. • Must work 100% onsite at El Segundo HQ. Benefits and Perks • Stock: Substantial incentive stock plan for all full-time employees. • Medical: 100% up to base silver level plan for employee + 50% dependents, offers up to Platinum plans. • One Medical: Sponsored memberships for employees and their dependents. • Vision: 100% top tier plan coverage + 50% for dependents. • Dental: 100% top tier plan coverage, orthodontia extra, 50% for dependents. • Voluntary life, accident, hospital, critical illness, commuter and FSA/HSA are offered as employee contributed benefits. • 8-weeks of paid parental leave for all parents. Additional paid pregnancy leave for