Assistant Controller

We are seeking a detail-oriented and service-driven Assistant Controller to join a fast-paced Business Management firm supporting ultra-high-net-worth (UHNW) clients. This role is ideal for someone who thrives in a high-touch environment where responsiveness, accuracy, and discretion are critical. The Assistant Controller will play a key role in managing day-to-day accounting operations with a strong focus on accounts payable, cash management, and administrative coordination. This individual will partner closely with Controllers and client-facing teams to ensure timely execution of financial transactions and white-glove client service. Key Responsibilities Accounts Payable & Cash Management Oversee high-volume accounts payable processing across multiple client entities, ensuring accuracy and timeliness Execute time-sensitive payments (wires, ACH, checks) with a strong sense of urgency and attention to detail Review and code invoices, ensuring proper allocation to appropriate entities and accounts Manage weekly cash flow, including funding requests and liquidity tracking across client accounts Maintain organized documentation and audit trails for all disbursements Client Service & Administrative Support Provide white-glove service to UHNW clients, responding promptly to payment requests and financial inquiries Act as a liaison between clients, vendors, and internal teams to facilitate seamless financial operations Assist with onboarding new client accounts, including system setup and documentation collection Support ad hoc requests with discretion and professionalism, often under tight timelines Accounting & Reporting Assist with month-end close, including reconciliations of bank, credit card, and investment accounts Maintain accurate general ledger records across multiple entities Support preparation of financial reports and client deliverables Ensure compliance with internal controls and firm policies Operations & Process Support Help streamline AP and administrative workflows to improve efficiency and accuracy Maintain and improve filing systems, both digital and physical Partner with leadership on special projects and process improvements Qualifications 3-6+ years of accounting experience, ideally within a Business Management firm, Family Office, or client service-oriented environment Strong accounts payable experience, including high-volume and time-sensitive transactions Experience supporting multiple entities and complex financial structures preferred Proficiency in accounting systems (e.g., QuickBooks, NetSuite) and Excel Exceptional attention to detail and organizational skills Strong sense of urgency and ability to prioritize in a fast-paced environment High level of discretion and professionalism when working with sensitive client information Excellent communication skills and a service-oriented mindset Compensation Competitive base salary + bonus #J-18808-Ljbffr