About Helion

We are a fusion power company based in Everett, WA, with the mission to build the world's first fusion power plant, enabling a future with unlimited clean electricity. Our vision is a world with clean, reliable, and affordable energy for everyone.

Since Helion's founding in 2013, we have raised $1.5 billion from long-time investors such as Sam Altman, Mithril, and Capricorn Investment Group as well as new investors including Thrive Capital, LightSpeed Venture Capital, SoftBank, and others to propel us forward. Our current prototype, Polaris, has reached record-breaking plasma temperatures of 150 million degrees Celsius (13 keV). Helion is continuing to iterate and on the path to the world's first fusion power plant, Orion.

This is a pivotal time to join Helion. You will tackle real-world challenges with a team that prizes urgency, rigor, ownership, and a commitment to delivering hard truths – values essential to achieving what no one has before. Together, we will change the future of energy, because the world can't wait.

What You Will Do

You will own Helion’s end-to-end accounts payable process, ensuring accurate, timely payments and strong financial controls as we scale. As a Senior Accounts Payable Analyst, you will partner across Finance, Supply Chain, and the business to resolve issues, support month-end close, and improve accounts payable processes and systems. This is an onsite role at our Seattle, WA office, reporting to the Accounts Payable Manager.

You Will

Assist with processing invoices from intake and approval through posting and record retention, ensuring accurate coding, complete documentation, and compliance with company policies and internal controls

Liaise with the vendor and internal teams such as General Ledger, Supply Chain, Receiving, Procurement, and business requestors to resolve invoice exceptions, payment holds, and account discrepancies

Execute timely ACH, wire, and card payments ensuring proper approval, segregation-of-duties, bank-change verification, and fraud-prevention controls

Maintain vendor records, including onboarding documentation, tax forms, and banking details

Reconcile vendor statements and respond promptly to vendor and internal inquiries

Ensure compliance with tax (W-9, W-8/BEN, 1099 reporting, sales tax exemption) and regulatory requirements

Prepare monthly account analyses, AP reports, and ad hoc financial reports

Support month-end close by reviewing open invoices and unmatched receipts, reconciling accounts payable activity, resolving aging items, and assisting with accruals

Drive process improvements & automation opportunities,

Develop and update AP policies, procedures, and documentation

Implement and maintain internal controls over the accounts payable processes

Serve as a backup in processing credit card purchases and expense reimbursements

Support audits and other finance projects

Required Skills

5+ years of end-to-end accounts payable experience, including work in a high-growth, technology-driven environment

Proficiency with Tipalti, Ramp, or comparable accounts payable platforms

Experience with two- and three-way invoice matching in a manufacturing environment and the ability to accurately process at least 200 invoices per week

Strong attention to detail, organization, and time management, with the ability to learn quickly, prioritize competing needs, and meet deadlines

Strong problem-solving and customer service skills, with the ability to communicate clearly with vendors and internal stakeholders in writing, verbally, and through presentations

Availability to work extended hours or weekends, as needed, to meet critical accounts payable deadlines

#LI-Onsite #LI-MM1

Benefits

Our total compensation package includes benefits, including but not limited to:

Medical, Dental, and Vision plans for employees and their families

31 Days of PTO (21 vacation days and 10 sick days)

10 Paid holidays, plus company-wide winter break

Up to 5% employer 401(k) match

Short term disability, long term disability, and life insurance