Accounts Payable Supervisor — Lead AP & Process Optimizations

MacDonald-Miller Facility Solutions; Seattle (WA); On-site; USD 85,000 - 95,000; Full time

Benefits offered by this job

Medical, dental, vision insurance

401k with company matching

Vacation and sick PTO

Disability insurance

Life insurance

Wellness program

Employee Assistance Program

Job summary

MacDonald-Miller Facility Solutions, based in Seattle, seeks an experienced Accounts Payable Supervisor to lead the AP team, manage vendor relationships, and drive efficiency improvements across the AP workflow.

You will own day-to-day AP operations, support the monthly close, and collaborate with Accounting, Procurement, Operations, and IT to optimize processes. The role offers growth opportunities in a transparent, growth-oriented environment.

Qualifications

• 5+ years of Accounts Payable experience with supervisory or team leadership experience.
• Experience with corporate credit card platforms and employee expense reimbursement.
• Experience in manufacturing, distribution, or a similar industry preferred.
• Strong understanding of the full AP cycle, including invoice workflows, vendor management, and month-end close.
• Bachelor’s degree in Accounting, Finance, Business Administration, or equivalent experience preferred.

Responsibilities

• Lead, mentor, and develop the AP team while establishing clear expectations, priorities, and accountability.
• Own the AP process — Ensure accurate and timely processing of vendor invoices, payment requests, and related transactions.
• Process improvement — Continuously evaluate AP workflows and implement improvements that increase efficiency, accuracy, visibility, and scalability.
• Cross-functional collaboration — Partner with Accounting, Procurement, Operations, IT, and other internal teams to resolve issues and improve financial processes.
• Month-end close — Run and support the monthly AP close to the general ledger, ensuring accuracy and timely completion.
• Vendor management — Maintain strong vendor relationships and resolve invoice, payment, and account issues quickly and professionally.
• Reporting and controls — Maintain accurate AP records, monitor key metrics, and ensure appropriate processes and controls are followed.
• Training and support — Develop team members and serve as a go-to resource for AP processes.

Skills

Leadership

Team leadership

Communication

Analytical thinking

Problem solving

Education

Bachelor’s degree in Accounting/Finance/Business Administration

Tools

Corporate credit card platforms

Expense reimbursement systems

Job description

MacDonald-Miller Facility Solutions, based in Seattle, seeks an experienced Accounts Payable Supervisor to lead the AP team, manage vendor relationships, and drive efficiency improvements across the AP workflow.

You will own day-to-day AP operations, support the monthly close, and collaborate with Accounting, Procurement, Operations, and IT to optimize processes. The role offers growth opportunities in a transparent, growth-oriented environment.