
Job Overview
Location
South San Francisco
Job Type
Full-time
Category
Accounting
Date Posted
December 14, 2025
Full Job Description
đź“‹ Description
- • Own the end-to-end accounting for all R&D activity at ArsenalBio, translating complex clinical, CMC, and discovery spend into GAAP-compliant financial statements that leadership trusts to make billion-dollar program decisions.
- • Build and maintain a living cost-tracking ecosystem that captures every contract amendment, milestone payment, FTE hour, and lab supply purchase across multiple parallel oncology programs—turning raw data into clear, audit-ready narratives.
- • Drive the monthly close for R&D and clinical trial areas in under five business days: post accrual journals, reconcile prepaid CRO balances, validate percentage-of-completion assumptions, and certify that no unrecorded liability is left behind.
- • Partner elbow-to-elbow with FP&A and Clinical Operations to translate trial enrollment curves and lab production schedules into precise accrual models, ensuring that forecast-to-actual variances are explained before they surprise anyone.
- • Act as the finance business partner to R&D Operations and the Contracts team—reviewing every new CRO work order, SOW change, and milestone trigger for accounting implications and ensuring ASC 730 and ASC 606 rules are applied correctly the first time.
- • Design and run quarterly deep-dives on R&D spend by program, surfacing early warning indicators (budget overruns, milestone slippage, vendor performance) and recommending corrective actions to keep solid-tumor cell therapy programs on track.
- • Validate the coding of every R&D purchase order and invoice—catching misclassified lab supplies, misaligned CMC batches, or duplicate consultant charges before they hit the general ledger.
- • Prepare audit-ready support files for Big-4 auditors and SOX consultants: detailed CRO roll-forwards, consultant accrual back-up, and tie-outs that routinely sail through PBC requests with zero follow-up questions.
- • Build scalable desktop procedures and system enhancements (NetSuite saved searches, Excel Power Query models, or simple Python scripts) that shrink the close calendar and free the team for higher-value analysis.
- • Lead ad-hoc projects such as ASC 842 lease adoption for lab equipment, collaboration revenue true-ups under ASC 808, or ERP upgrades—delivering crisp requirements, test scripts, and post-go-live hyper-care.
- • Mentor junior accountants and interns, turning technical GAAP concepts into relatable stories and ensuring the next generation of biotech finance talent grows inside ArsenalBio walls.
- • Champion a culture of continuous improvement: propose policy clarifications, automate repetitive reconciliations, and share best-practice memos that raise the bar for the entire Finance organization.
Skills & Technologies
R
Senior
Hybrid
Degree Required
About Arsenal Biosciences, Inc.
Arsenal Biosciences is a programmable cell therapy company that engineers T cells to treat solid tumors. It integrates high-throughput screening, synthetic biology, machine learning and proprietary manufacturing to create precision gene-edited immune cells designed to overcome the immunosuppressive tumor microenvironment. Founded in 2019 and headquartered in South San Francisco, the company operates a GMP facility and collaborates with academic and pharmaceutical partners to advance next-generation autologous cell therapies into clinical trials for cancers with high unmet need.



