Senior Accounting Manager

WPAS Inc•Mercer Island, WA

12h•$110,000 - $130,000•Hybrid

About The Position

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 NetSuite 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.

Requirements

Business degree (Accounting emphasis preferred, but not required).
8+ years of progressive accounting experience, including hands-on application of GAAP.
Demonstrated experience leading accounting process improvement and internal control enhancements.
Experience with a modern ERP/general ledger system (NetSuite strongly preferred).
Previous supervisory experience.
Advanced Excel skills and strong comfort adopting and configuring new technology.
Highly organized with efficient prioritization skills and demonstrated attention to detail.
Ability to work with and maintain confidential matters.
Punctual and able to meet weekly, monthly, and annual deadlines.

Nice To Haves

CPA or CPA candidate.
Experience with multi-employer benefit plan, Taft-Hartley, or trust accounting.
Hands-on experience optimizing NetSuite or other ERP systems
Experience implementing or administering Ramp or comparable AP automation tools.
Experience applying AI/LLM tools to finance and accounting workflows.
Experience with FP&A/reporting platforms (e.g., Datarails) and dashboard/reporting development.

Responsibilities

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 NetSuite 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 workpapers; serve as a key contact for the external audit.
Partner with the trust accounting team to support the accounting and reporting for assigned Taft-Hartley and Public Trust Funds.
Assist with FAS 115 / cash-to-accrual accounting for various Trusts as needed.
Help standardize and improve trust accounting processes, reconciliations, and reporting in coordination with corporate accounting.
Create invoices for special projects and support client-driven reporting requests.
Supervise, mentor, and develop accounting staff; review work for accuracy and completeness.
Set priorities and manage workload to meet weekly, monthly, and annual deadlines.
Promote a culture of continuous improvement, accountability, and confidentiality.
Other tasks as assigned.