Senior Accounting Manager

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Full Time Mercer Island, WA, US

21 days ago Requisition

Salary Range: $ To $ Annually

Welfare & Pension Administration Service, Inc. (WPAS) is a third-party administration (TPA) firm specializing in multi-employer benefit plan administration, with a corporate office located on Mercer Island, Washington. We currently administer over 80 Taft-Hartley and Public Trust Funds covering Health and Welfare, Disability and Time Loss, Dental, Vision, Defined Contribution, Defined Benefit, Vacation, Apprenticeship, and Legal Services benefits. For a complete list of our services, please visit our Administration Services page.

Our goal is to build a state-of-the-art, fully integrated benefit management platform that meets the evolving needs of our clients. WPAS offers a comprehensive benefits package including medical, dental, vision, 401(k) employer contributions, vacation pay, holiday pay, sick time accruals, and flexible scheduling within work hours.

Reporting to the Chief Financial Officer and partnering closely with the Corporate Controller, the Senior Accounting Manager is a hands‑on leadership role spanning both corporate accounting and trust accounting. The position carries primary responsibility for driving accounting process improvement and for leveraging and enabling technology including the Net Suite ERP, Ramp AP automation, AI and large language model (LLM) tooling, and reporting enhancements—to increase the capacity, accuracy, and speed of a lean finance team.

This is a high‑visibility role for an experienced accounting professional who is equal parts strong technical accountant, process designer, and technology champion. It offers a clear growth path toward an Assistant Controller or Controller role as the platform scales.

• Lead the design and continuous improvement of accounting processes, procedures, policies, and internal controls across corporate and trust accounting to improve accuracy, timeliness, and scalability.
• Document and standardize workflows (SOPs, checklists, and playbooks); identify and eliminate manual, redundant, or low‑value steps.
• Shorten the monthly close cycle and strengthen the supporting reconciliation and review framework.
• Establish process metrics and a roadmap for ongoing efficiency gains; partner with leadership to prioritize and sequence improvements.
• Serve as the finance team’s functional owner and champion for accounting systems, driving optimization of the Net Suite ERP (GL structure, segmentation, saved searches, workflows, and automations).
• Own and expand Ramp AP automation—approval routing, coding rules, integrations, and exception handling—to move accounts payable toward a touchless workflow.
• Identify and responsibly deploy AI and LLM‑based tooling to automate repetitive accounting tasks, accelerate reconciliations and reviews, and augment team productivity within appropriate controls and data‑governance standards.
• Enhance management and financial reporting—building and maintaining dashboards, recurring reporting packages, and self‑service reporting in coordination with the company’s FP&A/reporting tools.
• Evaluate, recommend, and implement new finance technologies; lead user acceptance testing and change management for finance systems.

• Coordinate and execute the month‑end close, including recurring and non‑recurring journal entries, account reconciliations, and related tasks.
• Reconcile general ledger balances and ensure the integrity of the corporate ledgers in accordance with GAAP.
• Calculate, process, and remit monthly B&O tax; support other tax and compliance filings as needed.
• Assist in the annual budget process and support cash management, accounts receivable, and cash receipt functions.
• Prepare and review supporting schedules and work papers; serve as a key contact for the external audit.

• Partner with the trust accounting team to support the…