Corporate Controller

About Deep Isolation

Deep Isolation is a leading innovator in nuclear waste disposal, providing a safe and cost-effective solution to the world's unresolved problem of how to dispose of spent fuel and high-level radioactive waste (HLW) using deep boreholes. Deep Isolation was founded in Berkeley, California in 2016 and expanded in 2020 with the opening of a UK-based subsidiary to cover sales and delivery in Europe, the Middle East, and Asia. We have government customers and prospects in the US, UK, EU, Asia, and the Middle East, and have additional subsidiaries such as Freestone Environmental Services. Our growing team of employees and associates works remotely, meeting in person 3-4 times per year; while the Deep Isolation segment operates without a physical office, the Freestone segment maintains one.

The company values scientific integrity, operational excellence, stakeholder engagement, and entrepreneurial spirit. Candidates will join a fast-paced, mission-driven start-up company transitioning into the public markets. This is an opportunity to work with a collaborative team on one of the world's most important environmental challenges in a flexible and empowering remote culture emphasizing accountability, teamwork, and innovation.

Position Summary

The Corporate Controller will play a foundational role in Deep Isolation's financial infrastructure, managing all accounting and financial operations as the company transitions to public status. Reporting directly to the CEO, this senior-level position will oversee accounting processes across Deep Isolation and Freestone entities, maintain compliance with U.S. GAAP and SEC reporting requirements, and establish scalable internal controls and systems. The Controller will lead audit processes, provide strategic financial insights to executive leadership, and develop a high-performing accounting team, including managing outsourced resources.

Core Functions

• Manage all accounting operations, including general ledger, accounts payable/receivable, payroll, currency translations and financial consolidations.
• Lead monthly, quarterly, and annual financial close processes, ensuring accuracy and timely completion.
• Prepare and coordinate public company financial filings (SEC Forms 10-K, 10-Q).
• Establish, implement, and maintain SOX-compliant internal controls.
• Manage internal and external audits.
• Drive enhancements in ERP systems and automation for scalable growth.
• Prepare cost accounting, margin analysis, variance analysis and operational efficiency metrics.
• Prepare annual budgets and assist with financial forecasting and variance reporting.
• Provide strategic financial guidance to executive leadership.

Required Qualifications and Experience

• 10 years accounting experience.
• At least 5 years' experience in controller or financial leadership roles within public or pre-IPO companies.
• CPA required.
• Expert knowledge of U.S. GAAP, SEC reporting, and SOX compliance.

Preferred Qualifications

• Experience in multi-entity and multi-currency financial environments.
• Proficiency with ERP/accounting platforms such as Ajera, Deltek, QuickBooks, or Microsoft Dynamics.
• Experience working remotely and managing distributed teams.

Education Requirements

• Minimum: Bachelor's degree in Accounting, Finance, or related field.

Other

• Strong communication and collaboration skills
• Self-motivated with the ability to work independently in a remote team
• Strong verbal and written communication skills to effectively collaborate in a dynamic team environment.
• Adaptability in a fast-paced, startup environment.
• Ability to manage deadlines and prioritize tasks.
• Ability to travel domestically or internationally.

Deep Isolation is an equal opportunity employer that is committed to diversity and inclusion in the workplace. We prohibit discrimination and harassment of any kind based on race, color, sex, religion, sexual orientation, national origin, disability, genetic information, pregnancy or any other protected characteristic as outline by federal, state, or local laws.