SlipstreamJobs tracks this role from the company's public career site. Apply directly on the employer's site.
Antares is building advanced nuclear microreactors for terrestrial, underwater, and space applications, with a mission to make clean energy abundant from Earth to the Asteroid Belt. The company has raised over $600M in venture capital and holds hundreds of millions in contracts with the military, NASA, and the Department of Energy. The team includes talent from SpaceX, the White House, the Pentagon, the Department of Energy, MIT, and national laboratories.
As a Senior Accountant, you will be one of the early members of Antares' Finance & Accounting organization, playing a key role in building the processes, systems, and financial infrastructure required to scale from R&D into manufacturing and commercial deployment. This is a highly hands-on role with broad exposure across the business, offering meaningful ownership from day one and direct collaboration with Finance leadership.
Key Responsibilities:
- Own significant portions of the monthly, quarterly, and annual close process, including journal entries, accruals, account reconciliations, supporting schedules, and variance analysis
- Maintain accurate general ledger accounts and proactively investigate and resolve accounting discrepancies
- Own balance sheet reconciliations and support monthly financial statement and management reporting
- Support preparation of GAAP financial statements and related reporting packages
- Manage accounting for assigned areas such as cash, prepaid expenses, fixed assets, accounts payable, payroll, accruals, and other balance sheet and P&L accounts
- Support annual financial statement audits, tax filings, and compliance activities, including preparing schedules and working with external auditors
- Help develop and document accounting policies, procedures, internal controls, and close processes as the company scales
- Partner with Engineering, Manufacturing, Supply Chain, Operations, and other teams to ensure accurate transaction recording
- Support accounting for government contracts, including project costs, labor, indirect costs, billing, and compliance requirements
- Build manufacturing and inventory accounting processes as the company transitions into reactor production, including inventory, WIP, capitalization, overhead allocation, and cost accounting
- Support technical accounting matters including revenue recognition, leases, stock-based compensation, and complex transactions
- Help implement and improve accounting systems, ERP tools, and automation
- Identify opportunities to improve existing accounting processes
- Take ownership of new accounting workstreams and special projects
The role is based in Torrance, CA at a 322,000 square foot facility featuring collaboration spaces, R&D, and production capabilities with easy freeway access.
Requirements:
- Bachelor's degree in Accounting, Finance, or related field
- 4+ years of progressive accounting or audit experience in public accounting, industry, or combination
- Strong understanding of U.S. GAAP and fundamental accounting principles
- Experience owning components of monthly close, including journal entries, accruals, and balance sheet reconciliations
- Experience preparing or supporting financial statements and financial statement audits
- ITAR eligibility: Must be U.S. citizen, national, lawful permanent resident, Refugee, or Asylee, or be eligible to obtain required authorizations from U.S. Department of State
Preferred Experience:
- 2–4 years of accounting or audit experience (note: this appears to overlap with basic requirement)
- Big 4 or other public accounting experience
- CPA or progress toward CPA certification
- Experience at high-growth, venture-backed company
- Experience in aerospace, defense, nuclear, manufacturing, or hard-tech industry
- Experience with manufacturing, inventory, fixed assets, or cost accounting
- Exposure to government contracting, DCAA compliance, FAR/DFARS, or government grant accounting
- Experience supporting or managing financial statement audits
- Knowledge of ASC 606 revenue recognition, ASC 842 lease accounting, ASC 718 stock-based compensation
- Experience with QuickBooks, NetSuite, Sage Intacct, or other ERP/accounting systems
- Experience with Ramp or modern AP and expense-management platforms
- Experience implementing or improving accounting systems, processes, and internal controls
- Interest in using technology and automation to improve accounting processes
- Strong Excel skills and comfort with large, complex datasets
- Strong attention to detail and understanding of transaction flow through financial statements
- Ability to independently manage multiple priorities and meet deadlines in fast-paced environment
- Strong written and verbal communication skills
