Controller

We are hiring an Accounting Lead (Controller) who will own Alt's accounting function while partnering closely with our Head of Finance on strategic financial initiatives. You will build and optimize our accounting infrastructure, establish scalable processes, and serve as a strategic thought partner on complex accounting matters. While operating as our accounting expert, you'll also contribute to broader finance initiatives including FP&A, fundraising support, and strategic projects. This role requires both deep technical expertise and the ability to think strategically about how accounting enables business growth.

Responsibilities:

Day-to-Day Accounting Operations:

• Own the monthly and quarterly close process end-to-end, including journal entries, account reconciliations, and variance analysis for key accounts

• Manage accounts payable operations from invoice processing to payment runs and vendor management

• Coordinate payroll accounting and benefits reconciliation in partnership with HR/payroll providers

• Oversee equity administration processes, including stock option tracking, grant approvals, and coordination with external equity plan administrators

Strategic Accounting Leadership:

• Serve as the company's accounting expert, advising on complex transactions, new product launches, and business model changes

• Design and implement scalable accounting processes to support rapid growth with minimal headcount increase

• Partner closely with FP&A on budget variance analysis, unit economics deep-dives, and board reporting materials

• Own the accounting systems roadmap, including evaluation and implementation ofERP and spend management solutions

• Independently research and apply complex accounting standards such as embedded derivatives and debt facilities

Cross-functional Partnership and Support:

• Collaborate with Product, Engineering, and Operations to ensure accurate accounting treatment of strategic initiatives

• Support fundraising activities including due diligence, data room management, and investor reporting

• Prepare documentation and training materials to enable future team growth and smooth transitions

Compliance and Controls:

• Maintain audit readiness and support external auditors with documentation and schedules

• Develop and enforce internal controls and accounting policies to safeguard the company’s assets and financial integrity

Qualifications:

• 7-12 years of progressive accounting experience, including at least 3 years in a lead/manager role

• Fintech/marketplace experience required - you understand complex revenue recognition, payment processing, and platform economics

• Technical accounting expertise: Proven ability to research and implement complex GAAP guidance independently

• Strategic thinking: Experience translating accounting insights into business recommendations

• FP&A exposure: Comfortable building financial models, analyzing metrics, and presenting to executives/board

• Startup resilience: Thrived in high-growth, resource-constrained environments where you had to build while flying

Technical Skills:

• Advanced Excel/Google Sheets modeling capabilities

• Experience with modern finance stack (Ramp, Stripe, Rippling, Quickbooks, etc.)

• SQL knowledge a plus for data pulls and analysis

• Familiarity with BI tools (Metabase, Tableau) for financial reporting

Leadership & Soft Skills:

• Self-directed problem solver who can navigate ambiguity without constant guidance

• Strong written and verbal communication - able to explain complex accounting to non-finance stakeholders

• Project management skills to juggle multiple initiatives while maintaining close timeline

• Intellectual curiosity about the business beyond just the numbers

• Builder mentality - excited to establish foundations that will scale

Tech stack

Ramp, Stripe, Rippling, QuickBooks, Excel, Google Sheets, SQL, Metabase, Tableau