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Treasury and Tax Analyst

Commonwealth Fusion Systems

Job Location:

Devens, MA - USA

Yearly Salary: USD 113000 - 141000

Posted: 24 October 2026 (22 hours ago)

Application Deadline: 21 January 2027

Vacancies: 1 Vacancy

Job Summary

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 were designing and building commercially viable fusion power plants. And were working with policymakers suppliers and many others to build the energy industry of the future.

Were in the best position to make it happen. Since 2018 weve raised $4 billion of capital making us the largest and leading fusion company in the world.

Now were looking for more thinkers doers builders and makers to join us. People wholl bring new perspectives solve tough problems and thrive as part of a team.

If thats you and this role fits we want to hear from you.

Join the power movement as a Treasury and Tax Analyst

Add execution capacity and bench strength within Corporate Finance. Under the Corporate Finance Managers direction the Corporate Finance Analyst will own assigned analyses trackers reconciliations documentation and recurring deliverables across treasury banking financing equity investor support and compliance and tax. The role is designed to reduce key-person risk build disciplined and transferable processes and develop a broad Corporate Finance foundation that can support future progression into a Treasury Manager or Tax Manager role as the organization grows. The Corporate Finance Manager remains accountable for strategy priorities stakeholder relationships judgment approvals and overall quality. The Corporate Finance Analyst is accountable for accurate timely execution and end-to-end follow-through on assigned workstreams including coordinating inputs and escalating risks with a recommendation.

What youll do:

Treasury and financing: Prepare cash liquidity investment and banking analyses; maintain debt letter-of-credit financing and counterparty trackers
Banking operations: Support account administration KYC documentation payment-control evidence and bank or counterparty follow-up
Equity administration: Support Carta and cap-table data reconciliations documentation and employee or investor requests
Investor support and compliance: Prepare diligence packages recurring compliance deliverables obligation calendars and supporting records with Accounting Legal FP&A Investor Relations and advisors
Tax workstreams: Support the year-end provision R&D credit energy tax credits tax calendars and data requests and ARC/global-tax planning analyses
Process and controls: Document procedures maintain control evidence reconcile data identify gaps and recommend practical improvements and backup coverage
Own assigned outcomes: Plan the work coordinate inputs meet deadlines and close the loop rather than waiting for repeated follow-up
Communicate proactively: Provide concise status risk recommendation owner timing and specific ask
Collaborate across functions: Build productive working relationships without relying on authority; handle sensitive information with sound judgment

What were looking for:

Bachelors degree in Accounting Finance Economics or a related field
Active CPA required
5 years experience in treasury accounting tax corporate finance banking operations audit or another controlled environment
Strong Excel and analytical skills; disciplined attention to detail; clear communication; ability to translate data into conclusions coordinate inputs manage deadlines and handle sensitive information with sound judgment. Preferred: Broad curiosity and interest in developing deeper expertise in treasury or tax

Bonus points for:

Experience with ERP Carta treasury or banking platform or high-growth company experience

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

$113000 - $141000 a year

Salary range for this full-time position equity benefits.The actual salary will depend on level location qualifications and experience. The range displayed on each job posting reflects new hire salaries for the position across all US locations.

Benefits include:

Competitive compensation with equity

13 Company-wide Holidays

Flexible vacation days

10 sick days

Generous parental leave policy

Health dental and vision insurance

401(k) with employer matching

Professional growth opportunities

Team-building activities

#LI-Hybrid

At CFS we excel in fast-paced environments driven by our values of integrity execution impact and self-critique. As we grow were 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.

Required Experience:

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