# Assistant Controller

**Company:** [Arena](https://hotfix.jobs/companies/arena)
**Location:** California
**Role:** Finance & Accounting
**Experience:** 8+ years
**Skills:** U.S. Gaap, ASC 606, ERP Systems, Ramp, SQL, Data Warehouses, Revenue Recognition, Internal Controls, Financial Reporting, Gaap Financial Statements
**Posted:** 2026-04-28

> Builds accounting function from scratch for high-growth AI startup, owning financial closes, revenue recognition under ASC 606, ERP implementation, internal controls, and audit readiness. Requires 8+ years experience, CPA, GAAP expertise, and hands-on builder mindset with AI workflow integration.

## Job Description

## Responsibilities

- Own monthly, quarterly, and annual financial closes, delivering GAAP-compliant financial statements and analyses.
- Manage day-to-day financial operations including AP/AR, expense allocations, balance sheet reconciliations, and invoice reconciliation across major enterprise accounts.
- Own revenue recognition end-to-end, applying ASC 606 across complex enterprise contracts.
- Design and implement scalable financial systems, processes, and controls to support rapid growth, including leading our first ERP implementation.
- Manage cash flow and working capital timing across large enterprise billing cycles.
- Build and maintain a strong internal control environment and establish accounting policies from scratch.
- Lead audit and tax readiness — serve as the primary liaison for external auditors and ensure compliance with all local, state, and federal tax requirements.
- Partner with the Head of Finance and leadership to translate data into strategic insights and define the roadmap for building out the accounting function as the company scales.

## Requirements

- 8+ years of progressive experience in accounting, with a strong track record at high-growth technology startups. Big 4 foundation preferred.
- Deep expertise in U.S. GAAP, specifically revenue recognition (ASC 606), stock-based compensation, and consolidations.
- Practical experience leading a company through its first financial statement audit and building internal controls from scratch.
- Strong background in implementing and managing ERP systems and modern finance tools (e.g., Ramp).
- CPA certification and strong technical accounting foundation required.
- A builder mindset: hands-on, resourceful, and comfortable owning both the details and the architecture of the function.
- Actively leveraging AI in your workflows today — it's already part of how you work, not something you're planning to explore.

## Nice-to-Haves

- Experience at a high-growth AI or SaaS startup with enterprise customers.
- Familiarity with cloud infrastructure cost accounting.
- Comfortable writing SQL and working in data warehouse environments to pull financial reports and validate data.
- Experience partnering directly with engineering and infrastructure teams.

## Compensation

- Competitive compensation and equity aligned to the markets where our team members are based.
- Comprehensive health and wellness benefits, including medical, dental, vision, and additional support programs.

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**Canonical:** https://hotfix.jobs/jobs/cbaf1aa3-792e-4869-8b1f-d18e3cda5ec6