Senior Accounting Manager
About The Position
The Senior Accounting Manager will oversee the accounting operations of a newly public company in its first full year of SOX 404(b) compliance. The role manages the month-end and quarter-end close, owns the integrity of the general ledger, serves as a named control owner within the SOX framework, and leads a team of general ledger and accounts payable accountants. Reporting to the Director of Accounting, this person is the day-to-day contact for external auditors and is accountable for monthly management reporting, including flux analysis and cost-per-test economics. The role is suited to someone with experience in a fast-paced, post-IPO environment who can drive operational and process improvements. BillionToOne is a molecular diagnostics company developing prenatal and cancer diagnostic products. The position supports accounting operations as the company scales and works across accounting, business partner, and audit teams.
Requirements
- 8–10+ years of progressive accounting experience, including 3+ years managing the close and leading a team of direct reports.
- CPA required, with deep US GAAP fluency.
- Hands-on SOX 404(b) experience as a control owner, including familiarity with control narratives in functional areas outside accounting and reporting, IPE requirements, and deficiency remediation.
- Strong NetSuite experience, including the ability to query the system directly using saved searches.
- Advanced Excel and analytical abilities.
- Excellent communication and interpersonal skills, with the ability to collaborate effectively across departments.
- Bachelor’s degree in Accounting, Finance, or a related field.
Nice To Haves
- Post-IPO experience is strongly preferred.
- Experience in life sciences, diagnostics, or another high-growth regulated industry is a plus.
- Big 4 or national audit firm experience is a plus.
- FloQast, Expensify, and Workiva experience are pluses.
- SuiteQL experience is ideal.
Responsibilities
- Manage the month-end and quarter-end close using a dependency-gated calendar in FloQast, including the journal entry control log, reconciliation sign-offs, and close checklist completion; compress the close timeline while improving quality and audit readiness.
- Own the accuracy and integrity of the NetSuite general ledger, including reviewing recurring and non-standard journal entries, reviewing balance sheet reconciliations across the account population, and resolving root causes of posting and configuration issues.
- Serve as a named owner and reviewer for financial reporting, general ledger, and close-cycle SOX controls; maintain control narratives and supporting documentation, ensure IPE completeness and accuracy, remediate deficiencies, and coordinate deliverables with business partners.
- Serve as the day-to-day contact for the Big 4 external auditor and consulting advisors; manage PBC requests, walkthrough support, sample pulls, and interim and year-end fieldwork.
- Own the monthly management reporting package, including month-over-month flux analysis by functional area, cost-per-test analytics for prenatal and oncology products, and a management summary for the CFO and leadership team.
- Lead, mentor, and develop GL and AP accountants across general ledger, fixed assets, accounts payable, and payroll; set expectations, establish review discipline, and develop the team's technical capabilities.
- Operationalize technical accounting conclusions, including ASC 842 lease accounting and embedded lease assessments, ASC 730 R&D cost treatment, and self-funded health plan IBNR reserves.
- Improve close and accounting processes to increase speed and efficiency while demonstrating operational compliance.
- Provide senior oversight of vendor master and disbursement controls, partnering with Supply Chain on procurement governance and support across the AP and payment cycle.
Benefits
- Multiple medical benefit options; employee premiums are paid 100% for select plans, and dependents are covered up to 80%.
- Family Bonding Leave for eligible employees: 16 weeks, paid at 100%.
- Supplemental fertility benefits coverage.
- Retirement savings program with a 4% company match.
- Paid time off increases with tenure.
- Latest hardware, including laptops, lab equipment, and facilities.
- Free daily on-site lunches.
- On-campus amenities including a state-of-the-art gym and restaurant.
- Free on-site EV charging.
- Annual bonus eligibility.
- New-hire equity grant of up to $110,000 at grant value, vesting over four years, plus annual equity refresh grants equal in value to the new-hire grant.
- Competitive medical and dental coverage and a 401(k) with company match.
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What This Job Offers
Job Type
Full-time
Career Level
Senior
