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.

About the role

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.

What you'll do

• 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.

About you

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.

What you get from us

• 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.