Assistant Controller

About the role

The Assistant Controller will oversee day-to-day accounting operations — including AP, AR, and the monthly close — across a 10+ entity structure, while serving as a key technical resource for GAAP matters, external audit, and consolidation/elimination work. This role also drives process improvement, automation, and business partnership outside of Finance, positioning the incumbent as a strong next-step candidate for Controller.

Responsibilities

• Team & Operations Management: Manage and develop accounting staff responsible for AP, AR, and the monthly close cycle; own the close calendar across all entities; review journal entries, reconciliations, and close deliverables; coach and build bench strength within the accounting team.
• Technical Accounting: Apply US GAAP across revenue recognition, accruals, reserves, and other judgment areas; review and approve account reconciliations and supporting schedules; research and document technical accounting positions as needed.
• Multi-Entity Consolidation: Manage intercompany transactions, eliminations, and reconciliations across 10+ legal entities; own the consolidated close and financial statement preparation; maintain and improve intercompany policies, transfer pricing documentation, and elimination workpapers; support entity-level and consolidated audits.
• Process Improvement & Automation: Map current-state accounting processes across entities, identify inefficiencies, bottlenecks, and control gaps; evaluate, select, and implement tools/technology to automate manual work, with particular attention to leveraging Quantum's capabilities (inventory, AP/AR workflows, reporting) more fully; drive standardization of close processes and chart of accounts across entities.
• Business Partnership: Partner with Operations, Sales, Program Management, or other functions outside Finance to support decision-making; translate financial data into actionable insight for non-finance stakeholders.
• Reporting: Support preparation of monthly/quarterly management reporting packages, including entity-level and consolidated views; assist with variance analysis and commentary for leadership.
• External Audit: Serve as a primary point of contact for external auditors during interim and year-end fieldwork; prepare/review audit schedules (PBC lists) at both entity and consolidated levels.

Qualifications

• Bachelor's degree in accounting or finance required
• 7–10+ years progressive accounting experience, including supervisory experience
• Experience managing accounting staff across AP, AR, and close functions
• Solid working knowledge of US GAAP
• Demonstrated success in process mapping/improvement
• Track record identifying automation opportunities and implementing tools/systems
• Experience partnering with non-finance departments
• Exposure to management reporting
• Experience working directly with external audit firms
• Multi-entity accounting experience, including intercompany eliminations and consolidations (10+ entities strongly preferred)

Preferred Qualifications

• CPA or CPA-track strongly preferred
• Aerospace & Defense experience
• Inventory accounting experience (standard costing, cycle counts, E&O reserves) — Quantum experience specifically is a significant plus
• Experience coordinating with external tax consultants
• Sales and use tax / property tax filing experience