Senior Manager, Accounting

About IonQ: IonQ, Inc . [NYSE: IONQ] is the world’s leading quantum platform and merchant supplier - delivering integrated quantum solutions across computing, networking, sensing, and security. IonQ’s newest generation of quantum computers, the IonQ Tempo, is the latest in a line of cutting-edge systems that have been helping customers and partners including Amazon Web Services, and AstraZeneca achieve 20x performance results and accelerate innovation in drug discovery, materials science, financial modeling, logistics, cybersecurity, and defense. In 2025, the company achieved 99.99% two-qubit gate fidelity, setting a world record in quantum computing performance . Headquartered in College Park, Maryland, IonQ has operations in California, Colorado, Massachusetts, Tennessee, Washington, Italy, South Korea, Sweden, Switzerland, Canada, and the United Kingdom. Our quantum computing services are available through all major cloud providers, while we also meet the needs of networking and sensing customers across land, sea, air, and space. IonQ is making quantum platforms more accessible and impactful than ever before. Location: This role is based at our College Park, MD office, with the option to work a few days a week remotely. Travel: As necessary Job ID: 1663 The Role: We are looking for a Senior Manager, Accounting, to join our Finance team. As a Senior Manager, Accounting, you’ll be part of a cross-functional team whose mission is to lead IonQ on its journey to build the world’s best quantum computers to solve the world’s most complex problems. In this role, you will own the day-to-day general ledger and monthly close processes, ensuring the accuracy and integrity of IonQ’s financial records in accordance with U.S. GAAP and SEC reporting requirements. You will play a meaningful part in accelerating the close process, strengthening internal controls, and building scalable accounting processes that support IonQ’s rapid growth. The ideal candidate is a hands-on accounting leader who thrives in a fast-paced, high-growth public company environment and is energized by the opportunity to build and develop a high-performing team. Responsibilities : Lead the end-to-end monthly, quarterly, and annual financial close process, ensuring accurate and timely completion of journal entries, account reconciliations, and analyses in accordance with U.S. GAAP; Manage and review general ledger activities, including the review of complex accruals, prepaids, fixed assets, capitalized software, inventory and other accounting areas to ensure data integrity and proper classification; Maintain ownership of SOX controls associated with the accounting close and general ledger processes; prepare and maintain documentation and work with internal and external auditors to facilitate quarterly reviews and the annual audit; Coordinate cross-functionally with Financial Reporting, Tax, FP&A, and Treasury to support preparation of monthly and quarterly analyses as required; Prepare and review management reporting package analytics, variance analyses, and supporting schedules for the board of directors, senior management, and external auditors; Supervise, mentor, and develop a team of accounting professionals, providing ongoing coaching and career development support; Support acquisition integration activities as needed; Drive continuous improvements in the close process, leveraging automation and system enhancements to increase efficiency and scalability; and Support the Office of the Global Controller on special projects and other ad hoc initiatives as needed. Requirements: 8+ years of relevant accounting work experience required 3+ years of public company accounting work experience required Active CPA designation Minimum of 3 years of supervisory experience Strong knowledge of U.S. GAAP and SOX compliance requirements High competency in Microsoft Word, Excel, and PowerPoint Strong analytical abilities; organized with exceptional attention to detail Self-motivated