Accounts Payable Specialist (Part Time) (Seattle - Downtown)

Accounts Payable Specialist (Part Time) GGN is seeking organized, detailed, mathematical minds who are as delighted by the rigor of accounts payable/receivables as they are by the intermittent variability that is a part of working within a creative practice. The Accounts Payable Specialist reports directly to the Accounting Manager and works in partnership with Project Managers. Key responsibilities include managing the billing process from generating and sending invoices to tracking payments and collecting overdue amounts. This role requires accurate financial records, reconciling accounts, resolving billing issues, responding to inquiries, and preparing reports. The position ensures documentation and communication in an accurate, efficient, and timely manner; keen attention to detail; strong organizational skills; and the ability to multi-task. This is a part time position, 24 – 32 hours per week. Essential Duties and Responsibilities • Accounting o Oversee the accurate and timely preparation and routing of monthly invoices. o Track consultant and vendor invoices, reconcile vendor statements, and follow up with clients on accounts receivables. o Resolve billing discrepancies. o Process employee expense reports including validating proper approval and coding o Reconcile and audit credit card transactions on a monthly basis. o Assist with credit card support including issuing new cards, handling declines, deactivating cards, etc. o Track and communicate IRS milage updates and similar. o Process and file cash application/deposit. o Participate in monthly financial statement close, including reconciling assigned balance sheet accounts and recording journal entries. o Perform other related duties as required. • Project Support/Setup o Assign and track project numbers. o Provide support to Project Managers by assessing, reconciling, auditing and coordinating project budgets and other project-related financial information primarily as it relates to tracking data in Ajera. o Update and create rate tables. • General Office Administration o Support Accounting Manager in the coordination and management of benefits administration including but not limited to annual open enrollment, transportation benefits, and principal perks. o Coordinate Certificate of Insurance (COI) requests and file COIs for access on Company server. o Review and coordinate timesheets and expenses before submitting to Accounting Manager. o Monitor and file PTO requests and add personnel time away to the team calendar. o Support office duties by providing general Administrative back-up. Required Knowledge, Skills, and Abilities: • Excellent attention to detail and ability to handle high volumes and varied requirements; • Clear verbal and written communication, self-management and initiative-taking, and inclination for collaboration; • Able to read, write, edit text, and perform/understand simple mathematical functions without recourse to a computer or calculator; • Problem solver that understands when to escalate concerns; • Strong organizational and time-management skills; • Proficient with Microsoft Office Suite, especially Excel; • Proficient with Bluebeam Revu (a plus); • Strong ethics, integrity, and discretion; • Must have the ability to quickly develop knowledge of GGN internal processes, systems, and priorities, and uphold them while also having the willingness to embrace change and look for improvements; • Knowledge of Ajera (Deltek) software is a plus as this is our accounting and personnel management platform; • Candidates must be authorized to work in the United States. Bachelor’s or Associate’s Degree OR relevant work experience along with a proven record of success in a similar position and a minimum of 2 years in bookkeeping, invoicing, and accounts payable or other related experience. Experience in architecture, engineering, or construction is a plus. Candidates must be authorized to work in the United States. About GGN GGN is a collaborative landscape architectural design community with a diverse range of projects locally, nationally, and internationally. Our projects involve all aspects of site design, including natural systems, hardscape, plants, soils, irrigation, and site furniture and amenities. We enjoy continuous learning and solving problems through a combination of open-minded listening, rigorous research, and hands-on trial and error in all aspects of our practice. Location Seattle, WA Compensation & Benefits Salary Range $26 - $36 per hour 401K with matching 100% Employer-paid health, vision, and dental insurance Employer-paid local Metro card Dog-friendly studio Must be local and available to work in our Seattle office Firm events such as hikes, picnics, and volunteer days To Apply Please send your resume and cover letter to jobs@ggnltd.com, directed toward Keshni Kishore. Information should be 5MB or less and directly attached to your email, not via a third-party link. Applications received by October 13, 2025 will receive priority consideration. More About GGN Our Mission and Values @ggnmages | LinkedIn