FP&A Intern

BillionToOne • Menlo Park, CA

1d • Hybrid

About The Position

BillionToOne is seeking an FP&A Intern to support our Finance team over a 10-week summer engagement. This role offers a hands-on immersion into corporate financial planning and analysis—giving you real-world exposure to the modeling, reporting, and strategic thinking that powers a high-growth, publicly traded biotech. You will be trained to perform the core functions of a junior financial analyst, working directly alongside senior finance leaders on projects that directly inform company decision-making. The FP&A Intern reports to the FP&A Manager and is a hybrid role requiring 2–3 days per week on-site at our Menlo Park, CA headquarters.

Requirements

• Currently pursuing or recently completed a Bachelor’s degree in Finance, Economics, Accounting, or an equivalent analytical discipline; rising juniors and seniors strongly encouraged to apply.
• Proficiency in Microsoft Excel, including financial modeling, pivot tables, and formula-driven analysis; experience with financial planning tools (e.g., Adaptive Insights, Anaplan, or similar) is a plus.
• Exceptional analytical and quantitative problem-solving skills with a high attention to detail.
• Clear and confident communicator, able to distill complex financial data into concise summaries for non-finance audiences.
• A proactive, self-starter mindset with the ability to manage multiple workstreams in a fast-paced environment.
• Genuine intellectual curiosity about the business—eager to understand the ‘why’ behind the numbers, not just the mechanics.

Nice To Haves

• Experience with data visualization tools (e.g., Tableau, Power BI) or SQL is a plus but not required.

Responsibilities

• Assist in the preparation of monthly and quarterly financial reporting packages, including variance analysis comparing actuals to budget and prior periods.
• Analyze revenue, operating expenses, and headcount data to surface actionable business insights for senior leadership.
• Build and maintain dashboards and data visualizations to track key financial and operational metrics.
• Conduct ad hoc financial analyses and scenario modeling to support strategic initiatives and business cases.
• Identify opportunities to streamline and improve FP&A processes, templates, and workflows.

Benefits

• Working with a team of ‘rockstars’ who bring out the best in everyone
• Open, transparent culture that includes weekly Town Hall meetings
• The ability to indirectly or directly change the lives of hundreds of thousand patients
• Free daily on-site lunches provided from top eateries
• Latest and greatest hardware (laptop, lab equipment, facilities)
• A variety of perks on campus (state of the art gym, restaurant)
• Free on-site EV charging (compatible with all EVs, including Tesla)
• Competitive base pay
• Opportunity for professional growth

What This Job Offers

• Career Level: Intern