Controller

The role

You will build and scale the accounting function for a company developing advanced nuclear technology. You will establish financial systems, controls, and processes to support the business as it moves from research to commercial deployment.

What you will do

• Own the monthly, quarterly, and annual close process.
• Build and improve accounting policies, internal controls, and financial reporting processes.
• Prepare financial statements and supporting schedules for management, investors, lenders, and external auditors.
• Lead technical accounting matters including revenue recognition, stock-based compensation, fixed assets, leases, accruals, and equity accounting.
• Establish scalable processes for accounts payable, payroll, treasury, purchasing, and expense management.
• Partner with external auditors, tax advisors, and valuation specialists.
• Collaborate with Finance to support budgeting, forecasting, fundraising, and strategic financial initiatives.
• Develop accounting processes to support manufacturing operations, inventory, cost accounting, and government contracting.
• Evaluate and implement accounting systems, ERP solutions, and automation tools.
• Partner cross-functionally with Engineering, Operations, Supply Chain, Legal, and People.

Required qualifications

• Bachelor’s degree in Accounting, Finance, or related field.
• 5+ years of progressive accounting experience, including public accounting and industry experience.
• 3+ years in a Controller, Assistant Controller, or equivalent leadership role.
• Strong knowledge of U.S. GAAP and financial reporting requirements.
• Experience leading monthly close and preparing audited financial statements.
• Experience working with external auditors and tax advisors.
• Strong ERP and accounting systems experience (QuickBooks, NetSuite, Sage Intacct, or similar).
• Advanced Excel skills and strong financial systems aptitude.

Nice to have

• Excellent communication and organizational skills with strong attention to detail.
• Experience building the accounting function at a high-growth startup from the ground up.
• Venture-backed startup experience
• Experience with manufacturing, inventory accounting, standard costing, and cost accounting.
• Experience with government contracting, DCAA compliance, FAR/DFARS, or grant accounting.
• Knowledge of revenue recognition (ASC 606), lease accounting (ASC 842), and stock compensation (ASC 718).
• Experience implementing ERP systems and finance automation tools.
• Familiarity with procurement, AP automation, expense management platforms (Ramp, Silkline, etc.), and financial reporting software.
• Experience managing equity accounting, cap table reporting, and 409A-related accounting.
• Proven ability to build teams, improve processes, and thrive in a fast-paced, ambiguous environment.

About the company

Antares is building mass-producible, inherently safe, deployable microreactors to make clean energy abundant. The team hails from organizations including SpaceX, the White House, the Pentagon, and various National Laboratories.