Head of Finance

About Poseidon Aerospace:

Poseidon Aerospace is reimagining how the world moves goods. We build and operate full-size autonomous cargo aircraft;
Heron, a seaplane, and Egret, a STOL aircraft; each capable of carrying two tons of payload over a thousand nautical miles. From remote communities to contested logistics operations, our platforms unlock a new cost curve for air freight, making it faster, cheaper, and accessible anywhere it's needed. Headquartered in the San Francisco Bay Area with locations in Washington DC, Oregon, and Maine;

we're building something consequential.

Poseidon is looking for a Head of Finance to own our finance function and help shape how we fund and scale the company. You will lead accounting, FP&A, treasury, tax, and financial operations while partnering with leadership on planning, capital allocation, and financing strategy. This is a hands-on role for someone comfortable moving between long-term decisions and day-to-day execution.

• Own accounting, budgeting, forecasting, reporting, tax, treasury, procurement, and cash management.

• Provide leadership with a clear view of performance, liquidity, runway, and future capital needs.

• Develop Poseidon’s capital strategy across equity, loans, credit facilities, equipment financing, and leases.

• Lead financing processes and manage relationships with banks, lenders, and leasing providers.

• Evaluate major equipment purchases and investments based on return, cash flow, risk, and financing options.

• Build scalable financial systems, controls, and processes.

• Support fundraising, investor reporting, board materials, audits, and financial diligence.

• Manage external accounting, tax, audit, and financial partners.

You have at least five years of relevant finance experience, including:

• Experience leading finance at an early-stage, high-growth, technology, industrial, or R&D-driven company.

• Strong hands-on experience across accounting, FP&A, treasury, and operational finance.

• Experience evaluating or securing loans, equipment financing, leases, or other forms of capital.

• Experience building financial systems and processes from the ground up.

• The ability to move comfortably between strategic planning, external negotiations, and detailed execution.

• Excellent analytical, organizational, negotiation, and communication skills.

• High integrity, sound judgment, and a strong sense of ownership.

Experience with capital-intensive businesses, lender relationships, venture financing, or non-dilutive funding is a plus.

• Competitive salary and meaningful early-stage equity

• Relocation support if applicable

• Employee Health Benefit Plans

• 6% Retirement matching

• Flexible PTO

• Free lunches, snacks, and a stocked fridge at our offices

• AI tools and subscriptions

Even if you don t meet every qualification listed, we encourage you to apply. At Poseidon Aerospace, we value diverse perspectives and are always looking for talented individuals with unconventional backgrounds.