About the Company

We are a renewable energy and ocean technology company committed to rapidly developing and deploying technologies that will ensure a sustainable future for Earth by unlocking the vast energy potential of its oceans. Our focus is on capturing civilizational levels of ultra-low-cost renewable energy for applications including computing and affordable renewable fuels delivered to shore.

The company is a public benefit corporation headquartered in Portland, Oregon, and backed by leading venture capitalists, philanthropic investors, university endowments, and private investment offices. We operate as an idea meritocracy in which the best ideas change the company’s direction on a regular basis.

Our staff have worked at organizations such as SpaceX, Blue Origin, Boeing, Tesla, Apple, Virgin Orbit, Astra, Google, Amazon, Microsoft, New Relic, Bridgewater, Raytheon, Disney Imagineering, and the US Army and Air Force, as well as research universities, startups, and small companies across a range of industries.

About the Job

Our core technology is the node, a device that produces energy in the ocean’s harshest conditions for years at a time without human maintenance or intervention.

Panthalassa continues to expand and strengthen its internal finance and accounting capabilities as the company scales from R&D toward manufacturing and deployment. We are looking for a hands-on senior accountant to own the accuracy, timeliness, and reliability of our books.

This is a high-ownership role at the center of our accounting function. You will own the month-end close from start to finish. That means making sure balance sheet accounts are reconciled and supported, accruals and prepaids are complete, capital projects and fixed assets are accounted for correctly, and the monthly financial statements are accurate and tie out. You will also oversee how transactions flow into the ERP, making sure invoices are routed cleanly, payments move through the right process, and spend is coded consistently.

You will work across finance, engineering, manufacturing, procurement, and our external accounting partners to understand the business context behind the numbers and turn it into sound, well-documented accounting treatment. As the company grows, your scope will grow too, into areas like audit readiness, fixed asset and inventory accounting, and building the controls and processes that a scaling hardware company needs.

Mastery of accounting fundamentals is critical. We also want someone who is technology-forward and excited to use AI and modern productivity tools to make the close faster, cleaner, more auditable, and more scalable without sacrificing accuracy or judgment.

Candidates should have strong interpersonal skills and be able to thrive in a creative, scrappy, and collaborative environment in which the best ideas change the company’s direction on a regular basis.

Responsibilities

Execute key month-end close tasks on schedule, including journal entries, accruals, prepaids, supporting schedules, and month-over-month flux analysis, to deliver accurate, reliable, and timely financial statements.
Own balance sheet reconciliations, ensuring every account is reconciled, supported, and reviewed monthly, and resolve variances before they carry forward.
Account for fixed assets and capital projects, including CIP, capitalization vs. expense decisions, and depreciation, as the company moves from R&D toward manufacturing.
Oversee the flow of transactions into NetSuite, ensuring invoices, bills, expenses, and payments are routed correctly and coded accurately by department, project, vendor, and spend category.
Partner with engineering, manufacturing, and procurement to understand the business context behind spend and turn it into repeatable coding and accounting rules.
Resolve payment and invoice issues, including discrepancies, missing payments, and payment timing, working with internal teams and vendors.
Identify manual or error-prone workflows and improve them through automation, AI tools, better spreadsheet design, or ERP configuration, and document the result.