Senior Manager, Accounting Operations

About Commonwealth Fusion Systems:

Commonwealth Fusion Systems is on a mission to deliver the urgent transition to fusion energy.

Combining decades of research, top talent, and new technologies, we’re designing and building commercially viable fusion power plants. And we're working with policymakers, suppliers, and many others to build the energy industry of the future.

We’re in the best position to make it happen. Since 2018, we’ve raised $4 billion of capital, making us the largest and leading fusion company in the world.

Now we’re looking for more thinkers, doers, builders, and makers to join us. People who’ll bring new perspectives, solve tough problems, and thrive as part of a team.

If that’s you and this role fits, we want to hear from you.

Join the power movement as Senior Manager, Accounting Operations

The Manager, Accounting Operations will own Accounting Operations across accounts payable, payroll, expense reporting, and state filing compliance. This role will serve as the manager-level owner for issue triage, escalation handling, process discipline, staff development, and cross-functional coordination across expense reporting, procure-to-pay, and payroll workflows. The role is structural in nature: it creates one clear owner for work that is currently fragmented across staff, consultants, and senior accounting leadership, reducing operational bottlenecks and helping the Accounting organization scale as CFS grows.

Lead the Accounting Operations function for a rapidly growing organization, including AP, payroll, expense reporting, and state filing compliance

Serve as the first-line manager-level owner for operational accounting issue triage, escalation handling, root-cause follow-up, and process discipline

Manage and develop the AP, payroll, expense reporting, and state filing compliance team; build role clarity, cross-training, backup coverage, and accountability

Oversee accounts payable operations, including invoice processing, vendor bill flow, payment preparation, vendor-related issue resolution, and adherence to procure-to-pay processes

Partner with Supply Chain, FP&A, and Buyers on PO creation, PO management, receiving discipline, buyer/category accuracy, invoice flow, and process improvement

Oversee payroll operations in partnership with People Ops, including timelines, controls, handoffs, issue resolution, and backup coverage

Own expense reporting and corporate card process compliance, including policy adherence, approval discipline, supporting documentation, and issue resolution

Own state filing compliance execution, including filing calendars, registrations, external provider coordination, documentation, and timely completion of required deliverables

Partner with ERP/IT and business process owners to identify workflow gaps, improve Odoo-enabled processes, support automation, and strengthen transaction traceability

Document key operating procedures, create scalable SOPs and training materials, and ensure process changes are communicated and adopted across impacted functions

Monitor operational accounting metrics and recurring issues to identify trends, reduce rework, and improve processing accuracy and cycle time

Support monthly close activities related to AP, payroll, expenses, accruals, payments, and compliance areas, ensuring activities are completed timely and accurately

Support internal controls, audit readiness, and compliance activities related to AP, payroll, expense reporting, and state filings

Bachelor’s degree in Business Administration or Accounting or similar field preferred

Minimum of 7 years of relevant accounting, accounting operations, or finance operations experience

Minimum of 5 years of supervisory, team lead, or process-owner experience in a finance/accounting environment

Hands-on experience with AP, payroll coordination, expense reporting, state filing compliance, or related operational accounting workflows

Demonstrated experience improving processes, resolving operational bottlenecks, documenting procedures, and driving accountability across functions

Experience working cross-functionally with teams such as Supply Chain, FP&A, People Ops/HR, ERP/IT, operations, or procurement

Strong process ownership, issue triage, prioritization, and root-cause problem-solving skills

Ability to manage ambiguity, create structure, and operate effectively in a fast-paced environment

Strong communication skills and ability to partner with non-accounting stakeholders while maintaining compliance and control discipline

People leadership, coaching, staff development, and accountability management

Strong Excel and ERP fluency; ability to use data to identify exceptions, trends, and process gaps

Experience in a high-growth, manufacturing, R&D, project-based, or operationally complex environment

Experience with Odoo or similar ERP systems

Experience managing external providers for state filings, compliance, payroll support, or related services

Experience with corporate card programs, travel and expense systems, procure-to-pay workflows, or payroll systems

CPA, CPP, or other relevant professional certification

Experience building SOPs, training materials, controls documentation, and audit-ready support

Perform extended activities such as typing, standing, sitting, walking, etc.

Occasional nights/weekends/on-call may be required during payroll processing, month-end close, audit, compliance deadlines, system issues, or urgent operational escalations.

Work in a facility that contains industrial hazards including heat, cold, noise, fumes, strong magnets, lead (Pb), high voltage, high current, pressure systems, and cryogenics

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