Senior Financial Analyst

Senior Financial Analyst

Devens, MA

Finance – FP&A / Full-time / On-site

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 and suppliers to build the energy industry of the future. We’re in the best position to make it happen. Since 2018, we’ve raised nearly $3 billion in capital, making us the largest and leading private 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.

The Senior Financial Analyst will be a key member of the finance team, responsible for providing strategic financial support to our engineering, operations, and corporate functions. This is a highly visible role that will work closely with senior leadership to drive financial performance, improve decision‑making, and ensure the company's long‑term success. The ideal candidate will have a strong background in financial planning and analysis (FP&A), a deep understanding of business operations, and excellent financial modeling and analytic skills using multiple platforms (e.g., Excel, Google Sheets) as well as strong communication and interpersonal skills.

• Strategic Financial Planning and Analysis: Partner with business leaders to develop and manage annual budgets, long‑range plans, and quarterly forecasts. Provide insightful financial analysis and commentary on key business drivers, risks, and opportunities.
• Business Partnering: Act as a trusted financial advisor to the leadership of various departments, including engineering, manufacturing, and R&D. Proactively identify and address financial challenges and opportunities, and provide recommendations to improve financial performance.
• Financial Reporting and Performance Management: Prepare and present financial reports, dashboards, and key performance indicators (KPIs) to senior leadership and the Board of Directors. Monitor performance against budget and forecast, and provide variance analysis and explanations.
• Capital Allocation and Project Analysis: Support capital allocation decisions by providing financial analysis and modeling for new projects, capital expenditures, and strategic initiatives.
• Process Improvement: Identify and implement process improvements to enhance the efficiency and accuracy of financial reporting and analysis.
• Team Leadership: Mentor and develop junior members of the finance team, and contribute to a collaborative and high‑performance culture.

• Bachelor’s degree in Finance, Accounting, Economics, or a related field
• 7+ years of experience in finance, with a focus on FP&A and business partnering
• Strong financial modeling and analytical skills
• Excellent communication and presentation skills, with the ability to clearly articulate complex financial concepts to non‑financial audiences
• Proficiency in financial software and ERP systems (e.g., Net Suite, SAP, Oracle)
• Advanced proficiency in Microsoft Excel and Power Point
• Proven ability to work independently, manage multiple priorities, and meet deadlines in a fast‑paced environment
• A passion for our mission and a desire to contribute to the development of fusion energy

• MBA or CPA
• Experience in a manufacturing, technology, or start‑up environment

• Perform activities such as typing, standing, or sitting for extended periods of time
• Willingness to travel or work required nights/weekends/on‑call occasionally
• 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

$110,000 – $185,000 a year

Salary range for this full‑time position + equity + benefits. The actual salary will depend on level, location, qualifications, and experience. The range…