BillionToOne logo

Senior Accounting Manager

BillionToOne

Menlo Park, CAOnsitePosted 6 days ago$174,068 - $206,706
Full TimeSenior LevelCorporate FunctionsDiagnostics
Original posting ↗

Summary

The Senior Accounting Manager will oversee the accounting operations of a newly public company in its first full year of SOX 404(b) compliance, including managing the month-end close process, owning the integrity of the general ledger, and serving as a named control owner within our SOX framework. Reporting to the Director of Accounting, this role leads a team of GL and AP accountants, acts as a primary day-to-day contact for our external auditors, and is accountable for the monthly management reporting package including flux analysis and cost-per-test economics.

Job description

Responsibilities

  • Month-End Close: Manage the month-end and quarter-end close on a dependency-gated calendar in FloQast, including the journal entry control log, reconciliation sign-offs, and close checklist completion driving continuous compression of the close timeline while raising quality and audit-readiness.
  • General Ledger Oversight: Own the accuracy and integrity of the general ledger in NetSuite, including review of recurring and non-standard journal entries, balance sheet reconciliations across the full account population, and root-cause resolution of posting and configuration issues.
  • Internal Controls (SOX 404(b)): Serve as a named owner and reviewer for financial reporting, GL, and close-cycle controls. Maintain control narratives and supporting documentation, ensure IPE meets completeness and accuracy standards, and remediate deficiencies with urgency.
  • Audit & Compliance: Act as a day-to-day point of contact for our Big 4 external auditor and consulting advisors, managing PBC requests, walkthrough support, sample pulls, and interim and year-end fieldwork.
  • Financial Reporting & Flux Analysis: Own the monthly management reporting package: month-over-month flux analysis by functional area (COGS, R&D, S&M, G&A), cost-per-test analytics for the prenatal and oncology products, and a management summary suitable for the CFO and leadership team.
  • Team Leadership: Lead, mentor, and develop a team of GL and AP accountants spanning general ledger, fixed assets, accounts payable, and payroll, setting clear expectations, building review discipline into every deliverable, and growing the team's technical depth as the company scales.
  • Technical Accounting: Operationalize technical accounting conclusions in areas including ASC 842 lease accounting including embedded lease assessment, ASC 730 R&D cost treatment, and self-funded health plan IBNR reserves.
  • Process Improvement: Drive improvements to the close and accounting processes bringing both increased speed & efficiency and demonstrated operational compliance.
  • Procure-to-Pay Controls: Provide senior oversight of the vendor master and disbursement control environment, partnering with the Supply Chain team to provide support and governance of procurement across the AP and payment cycle.

Qualifications

  • 8-10+ years of progressive accounting experience, including 3+ years managing the close and leading a team of direct reports; post-IPO experience strongly preferred.
  • Experience in life sciences, diagnostics, or another high-growth regulated industry is a plus.
  • CPA required with deep US GAAP fluency.
  • Big 4 or national audit firm experience is a plus.
  • Hands-on SOX 404(b) experience as a control owner including familiarity with control narratives in functional areas outside accounting & reporting, IPE requirements, and deficiency remediation.
  • Strong NetSuite experience required, with the ability to query the system directly (saved searches, and ideally SuiteQL), FloQast, Expensify, and Workiva experience are pluses.
  • 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.

Requirements

  • 8-10+ years of progressive accounting experience
  • 3+ years managing the close and leading a team of direct reports
  • CPA required
  • Deep US GAAP fluency
  • Hands-on SOX 404(b) experience as a control owner
  • Familiarity with control narratives, IPE requirements, and deficiency remediation
  • Strong NetSuite experience required
  • Ability to query NetSuite directly (saved searches, ideally SuiteQL)
  • Advanced Excel and analytical abilities
  • Excellent communication and interpersonal skills
  • Bachelor's degree in Accounting, Finance, or a related field

Benefits

  • Medical, Dental & Vision
  • 100% employee premiums on select plans
  • Dependent coverage up to 80%
  • 16 weeks paid family bonding leave
  • Fertility benefits
  • 401(k) 4% match
  • Paid time off increases with tenure
  • Annual bonus
  • New hire equity grant
  • Annual equity refresh grants
  • Free daily on-site lunches
  • On-site gym
  • Free on-site EV charging
  • Latest hardware

Company overview

BillionToOne is a precision diagnostics company headquartered in Menlo Park, California, founded in 2016 with a mission to make molecular diagnostics more accurate, efficient, and accessible. The company has developed a proprietary Quantitative Counting Templates (QCT) molecular counting platform that can accurately count DNA molecules at the single-molecule level, enabling unprecedented sensitivity in disease detection. BillionToOne operates as a publicly traded company on NASDAQ under the symbol BLLN, having completed a successful IPO in 2025. The company's diagnostic platforms include UNITY Complete for non-invasive prenatal testing, which assesses fetal risk for recessive conditions and aneuploidies from a single maternal blood sample, and Northstar oncology products for cancer therapy selection and treatment response monitoring. With over 500 employees and multiple CLIA/CAP accredited laboratories, BillionToOne represents a significant advancement in quantitative molecular diagnostics, combining breakthrough science with scalable commercial operations to transform healthcare delivery.

Explore more jobs of your matchFind more biopharma roles with GetBioJob.