Senior Manager, Accounting Operations

Commonwealth Fusion Systems

1050

Devens, MA

Posted on: 2026-09-21

Category: renewables

Ready to make this your next chapter?

Let Commonwealth Fusion Systems know you found them on WorkInGreen. It helps more companies post climate jobs here.

Apply to job

Employment type:

Full time

Experience required:

Senior

Salary

$150,000.00 - $225,000.00

About the company:

Commonwealth Fusion Systems (CFS) is on a mission to deliver clean fusion energy to the planet fast enough to matter for humanity’s biggest challenges.

It’s urgent. The gap between the energy we need and the energy we have is widening every day. Fusion is a critical part of the energy transition away from fossil fuels, a new chapter for the world’s energy supply.

We’re committing to delivering fusion power plants and a full-fledged fusion energy industry as we’ve delivered on other promises. Like the world’s strongest high-temperature superconducting magnet, the game-changing technology that’s making commercial fusion energy a reality.

We’ve raised over $2 billion in capital — more than any other fusion energy company — and attracted top talent to design, build, and deliver commercial fusion power plants. And we’re working with policymakers and suppliers to make fusion energy available globally.

As we push toward the fusion-energy future, we’ll keep setting and meeting milestones, sharing and validating our progress, and encouraging others to do the same.

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

Our Accounting team is looking for a transformational leader to own and optimize our operational accounting functions. This person must have a broad knowledge of accounting and experience in developing and scaling a talented team. The Senior Manager, Accounting Operations acts as a connector between our Accounting function and adjacent teams including Payroll, Supply Chain, Manufacturing, etc. We are looking for someone who is anticipatory and able to look five steps ahead in the process to see how accounting decisions affect everything part of our organization. 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.You will lead us through optimization efforts to develop and implement best practices and effective systems as we continue to scale the company, but also won't be afraid to be hands-on when necessary. This role has immense opportunity for growth as our team continues to grow and develop.

#LI-Hybrid

At CFS, we excel in fast-paced environments, driven by our values of integrity, execution, impact, and self-critique. As we grow, we’re eager to bring on mission-driven folks who offer diverse perspectives and fresh ways to tackle challenges.

We value diversity deeply and are proud to be an equal opportunity employer by choice. We consider all qualified applicants equally, regardless of race, color, national origin, ancestry, citizenship status, protected veteran status, religion, physical or mental disability, marital status, sex, sexual orientation, gender identity or expression, age, or any other basis protected by law.

This role requires compliance with U.S. laws concerning the export of controlled or protected technologies or information (collectively, “Export Control Laws"). Any offer of employment will be contingent on the need for compliance with such Export Control Laws.

What you'll do:

Evaluate, recommend, and implement process improvements for accounting operations, including analyzing potential system enhancements and developing SOPs
Own collaboration with Supply Chain, FP&A, People Ops, IT, etc. to ensure optimized processes and cross-functional communication
Manage and develop the AP, payroll, expense reporting, and state filing compliance team and operations; build role clarity, cross-training, backup coverage, and accountability
Serve as the first-line manager-level owner for operational accounting issue triage, escalation handling, root-cause follow-up, and process discipline
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

What we’re looking for:

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

Bonus points for:

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

Must-have Requirements:

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