Senior Controller for AI-Driven Real Estate Platform

Mainstay; United States; On-site; USD 150,000 - 190,000; Full time

Job summary

Mainstay is hiring a Controller to lead our accounting function as we scale. You'll own the monthly close process end-to-end, build and enforce the internal control environment, and serve as the company's primary authority on technical accounting and financial reporting, partnering closely with the Head of Finance on the broader finance strategy.

This role will define and implement scalable finance and accounting data structures, own the external audit relationship, and collaborate on budgeting,

Qualifications

• Bachelor's degree in Accounting or Finance required or equivalent.
• 10+ years of progressive accounting experience, including Controller or Assistant Controller roles.
• Strong working knowledge of U.S. GAAP and consolidated financial statements.
• Advanced Excel skills and experience with a modern ERP/accounting system.
• Experience building and leading an accounting team and managing external audits.

Responsibilities

• Own the monthly, quarterly, and year-end close process end-to-end.
• Prepare and own GAAP financial statements and management reporting packages.
• Design, implement, and enforce internal controls for scalable growth.
• Set accounting policy on revenue recognition, leases, equity, and other complex areas.
• Define and implement scalable finance data structures across ERP and data assets.
• Manage the external audit relationship, including PBC schedules and auditor coordination.
• Partner with Head of Finance on budgeting, forecasting, and variance analysis.
• Collaborate with Legal and People teams to manage the cap table.
• Lead the accounting function and mentor staff; drive automation and process improvements.

Skills

U.S. GAAP

Advanced Excel

ERP systems

Team leadership

Education

Bachelor's degree in Accounting or Finance

CPA preferred

Tools

Ramp

Rippling

Shareworks

Sage Intacct

Job description

Mainstay is hiring a Controller to lead our accounting function as we scale. You'll own the monthly close process end-to-end, build and enforce the internal control environment, and serve as the company's primary authority on technical accounting and financial reporting, partnering closely with the Head of Finance on the broader finance strategy.

This role will define and implement scalable finance and accounting data structures, own the external audit relationship, and collaborate on budgeting,