Controller

RadixArk•Palo Alto, CA

1d•Hybrid

About The Position

We're looking for a Controller to build the financial reporting and accounting functions at RadixArk from the ground up. This is a true 0-to-1 role — you won't be inheriting a close process or a chart of accounts, you'll be designing both. You'll own the full spectrum of accounting operations, financial reporting, and controls infrastructure, while simultaneously standing up the systems and processes that will scale with us through hypergrowth. You'll report directly to the Head of Finance & Operations and work in close partnership with the founders. This is a rare opportunity to define what financial rigor looks like at RadixArk — and to build it yourself. This role is not for the faint of heart. We move fast, operate with a sense of urgency, and expect the same from everyone on the team.

Requirements

7+ years of progressive accounting experience, with meaningful time at a high-growth tech company or a mix of Big 4 and startup
CPA required
Deep command of US GAAP, particularly around revenue recognition (ASC 606), equity accounting, and stock-based compensation (ASC 718)
Hands-on experience selecting and implementing financial systems — you've done the work, not just managed vendors who did it
Proven track record managing and elevating external accounting partners — you know how to get more out of your auditors, advisors, and outside counsel than a typical client relationship delivers
Comfortable operating at every level: you'll set strategy and reconcile accounts in the same week
Scrappy, resourceful, and relentlessly accurate — you hold the bar on financial integrity without slowing the business down
Low ego, high output — you do what it takes to get the numbers right and the team equipped to move fast

Nice To Haves

experience with venture-backed companies and the associated investor reporting expectations is a strong plus
Experience supporting audits, fundraising due diligence, or board reporting a strong plus
International accounting exposure (transfer pricing, multi-entity consolidations) a plus as we grow globally

Responsibilities

Own the monthly, quarterly, and annual close process end to end — building it to be fast, accurate, and audit-ready
Manage all general ledger activity including revenue recognition, accruals, prepayments, and equity accounting
Prepare and review financial statements in accordance with US GAAP
Design and enforce the chart of accounts, accounting policies, and documentation standards
Build and maintain a robust internal controls environment — policies, procedures, and audit trails that can withstand investor and board scrutiny
Coordinate external audits and manage relationships with auditors, tax advisors, and legal counsel
Own federal and state tax compliance, including R&D credits, sales tax nexus, and international considerations as we grow
Ensure compliance with all regulatory and reporting requirements relevant to a venture-backed technology company
Select, implement, and own our core financial systems stack (ERP, expense management, billing, etc.)
Build the reporting and dashboards that give leadership real-time visibility into financial position and burn
Establish scalable AP/AR processes and vendor management workflows
Own payroll operations and coordinate with People on compensation and equity accounting
Partner with the Head of Finance & Operations on budgeting, forecasting, and board reporting
Support fundraising and due diligence processes — you will be a key voice in investor conversations
Provide financial analysis and decision support to the founders and leadership team