Technical Accounting and Internal Controls Lead

Commonwealth Fusion Systems•Devens, MA

13d

About The Position

Commonwealth Fusion Systems (CFS) is hiring a senior individual contributor and hands-on builder to lead technical accounting and establish and operate a management-owned internal controls capability. The role will turn the existing controls roadmap into documented, operating, and sustainable controls; resolve complex accounting matters; and build the discipline needed for efficient audits, scalable growth, and long-term public-company readiness. The role owns the controls program and its risk-based roadmap, governance, annual plan, issue log, remediation cadence, and management reporting. It defines and refreshes the scope and accountability of the controls environment, builds durable documentation, drives remediation and readiness, and prepares priority processes for operating-effectiveness testing and future SOX requirements. As Accounting’s technical lead, this person researches and documents U.S. GAAP conclusions for complex or unusual transactions and translates them into policies, journal-entry treatment, disclosures, processes, and controls. The role partners across Accounting, FP&A, Legal, IT, People, Supply Chain, and program teams, including during ERP and other finance-system implementations. It also serves as a primary liaison to external auditors and specialized advisors while retaining internal ownership of decisions, evidence standards, and execution. The position is based in a facility that may contain industrial hazards, and extended activities such as typing, standing, sitting, and walking are required. Occasional nights, weekends, or on-call work may be needed during payroll processing, month-end close, audits, compliance deadlines, system issues, or urgent operational escalations. The salary range is $142,000–$177,000 per year, plus equity and benefits; actual salary depends on level, location, qualifications, and experience. This role requires compliance with U.S. Export Control Laws, and any offer is contingent on that compliance.

Requirements

Bachelor’s degree in Accounting, Finance, or a related field.
Active CPA required.
10+ years in accounting, audit, internal controls, or advisory, with meaningful hands-on responsibility for both technical accounting and control design or SOX readiness.
Experience building or materially advancing a controls program in a high-growth, pre-IPO, newly public, or complex public-company environment.
Strong command of U.S. GAAP, COSO, financial statement assertions, and ICFR design and evaluation.
Ability to write clear, defensible accounting memoranda; apply pragmatic, risk-based judgment; influence without direct authority; communicate clearly; and drive work end to end while balancing rigor with business needs.
Ability to perform extended activities such as typing, standing, sitting, and walking.
Compliance with U.S. laws concerning the export of controlled or protected technologies or information is required.

Nice To Haves

Experience in a high-growth, manufacturing, R&D, project-based, or operationally complex environment.
Experience with Odoo or similar ERP systems.

Responsibilities

Own the controls program, including its risk-based roadmap, governance, annual plan, issue log, remediation cadence, and concise management reporting.
Map significant accounts, processes, systems, assertions, risks, controls, and owners, and refresh the scope as the business evolves.
Develop and maintain narratives, flowcharts, risk-and-control matrices, entity-level controls, management review controls, and policies.
Identify control design and execution gaps, assign owners and dates, verify remediation closure, and prepare priority processes for operating-effectiveness testing and future SOX requirements.
Research and document U.S. GAAP conclusions for complex or unusual transactions and translate them into policies, journal-entry treatment, disclosures, processes, and controls.
Partner across Accounting, FP&A, Legal, IT, People, Supply Chain, and program teams, including during ERP and other finance-system implementations.
Serve as a primary liaison to external auditors and specialized advisors while retaining internal ownership of decisions, evidence standards, and execution.