Senior Manager, Accounting Operations
Commonwealth Fusion Systems • Devens, MA • Full Time • $150,000–$225,000 / year
Posted on Tue, Sep 22, 2026
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.
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
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