Senior Accountant

Pacific Fusion was founded in 2023 with the mission to power the world with abundant, affordable, clean energy.

We are rapidly designing and building a pulser‑driven inertial fusion system to achieve net facility gain (more fusion energy output than stored energy input). In parallel, we are developing the key components required to build affordable fusion systems.

Our plans are ambitious. We have raised over $900M so far from incredible investors, resourcing us to deliver on these plans. We are bringing together the best scientists, engineers, and operators from the fusion community, hard‑tech industry, and other sectors. We are united by a shared sense of urgency to provide clean power for the world, particularly managing climate change while meeting growing global energy demand.

You can read more about us in this letter from our founders.

We are building a high‑impact finance team to support our rapid growth. The Senior Accountant will be a foundational member of the team, responsible for establishing and maintaining rigorous accounting processes in a fast‑paced startup environment. A core focus of this role is fixed asset accounting — as a capital‑intensive technology company, Pacific Fusion requires meticulous tracking, capitalization, and reporting of property, plant, and equipment as we deploy significant infrastructure.

This role requires someone who is comfortable with ambiguity, able to work independently, and excited to help build infrastructure from the ground up.

• Participate in the month‑end and year‑end close process, including preparation of journal entries, account reconciliations, and financial statements in accordance with US GAAP.
• Perform monthly bank and cash reconciliations, investigating and resolving variances in a timely manner to ensure accuracy of cash balances reported in the financial statements.
• Lead all fixed asset accounting activities, including capitalization of property, plant, and equipment; depreciation calculations; asset disposals; and maintenance of the fixed asset sub‑ledger.
• Establish and enforce capitalization policies, ensuring proper distinction between capital expenditures and operating expenses in a capital‑intensive R&D environment.
• Maintain lease schedules and amortization tables for operating and finance leases, ensuring accurate monthly entries for lease cost, interest expense, and liability reduction.
• Coordinate with external auditors and tax advisors during annual audit and tax preparation.
• Assist with R&D tax credit documentation and grant compliance as applicable.
• Serve as backup to the Accounts Payable Sr Accountant, ensuring continuity of vendor payments and AP operations during absences or peak periods.
• Perform ad‑hoc financial analysis and special projects as needed.

• Bachelor’s degree in Accounting, Finance, or related field.
• CPA license.
• Minimum 4–6 years of progressive accounting experience.
• Hands‑on experience managing fixed asset sub‑ledgers, capitalization policies, depreciation schedules, and CIP accounting in accordance with ASC 360 and lease accounting in accordance with ASC 842.
• Experience with month‑end close, financial statement preparation, and audit support.
• Proficiency with accounting software (Quick Books, Net Suite, or similar) and Microsoft Excel.
• Highly organized, detail‑oriented, and able to manage multiple priorities in a fast‑moving environment.
• Self‑starter who thrives in an unstructured, entrepreneurial environment.

• Experience working at a startup or venture‑backed company.
• Experience with R&D‑intensive companies, government grants and related compliance.
• Experience with Coupa.
• Experience with ERP implementations.

Pay Range: $130,000 – $150,000 USD.

• Equity plan.
• 6% employer 401k matching.
• Generous paid time off (including sick leave, vacation, paid family leave).
• Medical, dental, and vision insurance.

Actual base salary offered will be determined by: experience, skills, and work location. This range is for base salary, our total compensation includes equity and benefits. We welcome you to apply even if your expectations are…