Controller

About Periodic Labs

We’re an AI and physical sciences company building state-of-the-art models to accelerate breakthroughs across materials, energy, and beyond. Backed by world-class investors and growing rapidly, we operate at the pace the frontier requires. Our team brings deep expertise, genuine ownership, and an insatiable drive to push the boundaries of what’s scientifically possible.

About the Role

We are hiring our first in-house Controller to own the integrity and day-to-day operation of Periodic Labs’ accounting function. You will serve as the primary internal owner of accounting, financial reporting, controls, audit readiness, and compliance. This is a hands-on builder role. You will have the opportunity to not only review and conduct accounting analysis, but also shape the overall accounting function at Periodic Labs. Over time, you will build the systems and internal team needed to support a rapidly growing, multi-entity company operating across AI, physical laboratories, and scientific R&D.

What You’ll Do

• Own the monthly, quarterly, and annual close process, including the general ledger, consolidations, reconciliations, accruals, journal entries, and preparation of GAAP fin