Senior Director, Controller

BigHat Biosciences
BigHat Biosciences

Accounting & Finance, Sales & Business Development · Full-time

San Mateo, CA, USA

Posted on Sep 18, 2026
The role: BigHat Biosciences is seeking a detail-driven, proactive, and analytical Controller to serve as BigHat’s senior accounting leader and architect of its finance infrastructure at a pivotal stage of growth. This role is for someone who enjoys solving complex accounting challenges, focuses on continuous process improvements, thrives in a fast-paced environment, and is a true builder. You will own the full accounting function, from close and financial reporting to technical accounting, equity, tax and compliance. You’ll also be designing and/or improving the systems, controls, and processes required for a future public-company operating environment.
The right candidate brings accounting experience from a high-growth biotech, pharma or life sciences company (with exposure to CRO accruals and R&D program cost tracking), hands-on NetSuite (or similar) implementation or migration experience, and the technical rigor to independently research and document complex GAAP positions. You are comfortable serving as the primary interface with external auditors, capable of building an internal Sarbanes-Oxley (SOX) Compliance control framework from the ground up, and ready to lead the company's transition off QuickBooks as we scale.