Assistant Controller

Accounting Operations | Financial Close | Controls & Compliance

Location Newport Beach / Orange County, California

Employment Type Full-time

Department Finance

Reports To Dan Hejza, VP of Finance / Controller

Compensation
150,000–150,000–200,000 base salary
, plus bonus, equity, and benefits

Tiberius Aerospace is a cutting-edge aerospace and defense company delivering advanced, mission-critical technologies for government and private-sector customers. We develop high-performance aerospace systems, secure engineering solutions, and complex hardware built for demanding operational environments.

Tiberius is scaling quickly and is seeking finance leaders who bring rigor, ownership, and operational discipline to a fast-moving hardware business. Our finance team is a strategic partner to the organization—building the systems, controls, and insight required to support growth while maintaining the standards expected of a high-consequence aerospace and defense company.

Tiberius Aerospace is seeking an experienced and hands-on Assistant Controller to help build, manage, and scale the company’s accounting function.

Reporting directly to Dan Hejza, VP of Finance / Controller
, this role will own critical elements of the monthly and annual close process, general-ledger integrity, financial reporting, internal controls, and day-to-day accounting operations. The Assistant Controller will work closely with leaders across Finance, Operations, Engineering, Supply Chain, People, Legal, and Program Management to ensure accurate financial information, disciplined processes, and timely decision support.

This is a deliberate succession-track role. The successful candidate will have the technical rigor, operating judgment, and leadership ability to take on increasing ownership of the accounting organization and transition into the Controller role within several quarters based on performance.

The ideal candidate is equally comfortable working at the detail level—reconciling accounts, reviewing journal entries, and resolving close issues—as they are improving processes, developing accounting policies, supporting audits, building a team, and creating scalable financial infrastructure.

• Lead key components of the monthly, quarterly, and annual financial-close process, ensuring accuracy, completeness, and timeliness.
• Maintain the integrity of the general ledger, including account reconciliations, journal entries, accruals, prepaids, fixed assets, intercompany activity, and other balance-sheet accounts.
• Review journal entries, reconciliations, supporting schedules, and close deliverables prepared by internal team members and external accounting partners.
• Prepare and review monthly financial statements, management reporting packages, flux analyses, and supporting schedules.
• Drive timely resolution of accounting discrepancies, unusual transactions, balance-sheet issues, and close-related risks.
• Establish and maintain close calendars, standard operating procedures, account-ownership structures, and documentation standards.
• Support cash-management, banking, treasury, and payment-control activities as needed.

• Support the preparation of accurate and timely financial reporting in accordance with U.S. GAAP.
• Develop, document, and strengthen accounting policies, internal controls, and finance procedures appropriate for a scaling aerospace and defense organization.
• Maintain a strong internal-control environment across accounting processes, including procure-to-pay, order-to-cash, payroll, inventory, fixed assets, expense reporting, and financial close.
• Support external audit, tax, lender,…