Senior Technical Accounting & Internal Controls Leader — Equity

Commonwealth Fusion Systems LLC; Harvard (MA); On-site; USD 180,000 - 240,000; Full time

Benefits offered by this job

Equity compensation

Company holidays

Flexible vacations

Sick days

Parental leave

Health, dental, and vision insurance

401(k) matching

Growth opportunities

Team building

Job summary

Commonwealth Fusion Systems LLC is seeking a senior technical accounting and internal controls lead to build and operate a robust, scalable controls program. You will translate complex accounting into policies, journal entries, and disclosures while coordinating across Finance, IT, and legal teams.

You’ll work with external auditors and internal stakeholders to ensure compliance and readiness for future growth in a fast‑moving, high‑growth environment.

Qualifications

• CPA certification is required and must be active.
• 10+ years in accounting, audit, internal controls, or advisory with hands-on responsibility.
• Strong command of U.S. GAAP, COSO, financial statement assertions, and ICFR design/evaluation.

Responsibilities

• Own the controls program, maintain risk-based roadmap and governance.
• Define scope, map accounts, processes, systems, and owners; refresh as business grows.
• Build narratives, flowcharts, risk-and-control matrices, and policies.
• Drive remediation and readiness for operating-effectiveness testing and SOX.
• Lead technical accounting, document U.S. GAAP conclusions and translate into policies and disclosures.

Skills

CPA

SOX

GAAP knowledge

Communication

Education

Bachelor’s degree in Accounting or related field

Tools

Odoo ERP

Job description

Commonwealth Fusion Systems LLC is seeking a senior technical accounting and internal controls lead to build and operate a robust, scalable controls program. You will translate complex accounting into policies, journal entries, and disclosures while coordinating across Finance, IT, and legal teams.

You’ll work with external auditors and internal stakeholders to ensure compliance and readiness for future growth in a fast‑moving, high‑growth environment.