Accounts Payable Supervisor, Professional Services Outsourcing Accounting Services

At Armanino, you determine your career path. This means it's possible to pursue challenges you are passionate about, in industries you care about.

Armanino is proud to be Among the top 20 Largest Firms in the Nation and one of the Best Places to Work. We have a community of resources that are ready and willing to support your ideas, build your skills and expand your professional network. We want you to integrate all aspects of your life with your career. At Armanino, we know you don’t check-out of life when you check-in at work. That’s why we’ve created a unique work environment where your passions, work, and family & friends can overlap. We want to help you achieve growth by giving you access to a network of smart and supportive people, willing to listen to your ideas. 

The Accounts Payable Supervisor will ensure the Accounts Payable Department is working efficiently to support all of their clients in the best possible way. This Supervisor will use their excellent supervisory skills and experience to support their team by sharing and implementing new ideas and processes. They will be organized, motivating and willing to jump in and help the team with learning new software systems, billing and payment processing when needed. 

Job Responsibilities 

• Oversee day‑to‑day accounts payable operations for domestic and global professional services clients 

• Manage invoice intake, coding, approvals, and payment processing (checks, ACH, wires) 

• Ensure accurate invoice entry and matter/cost coding within ProLaw 

• Monitor AP aging and resolve vendor issues in a timely manner 

• Maintain and optimize AP workflows and system configurations within ProLaw 

• Oversee vendor setup, including payment terms and tax classifications 

• Partner with Finance Systems and IT to troubleshoot issues and support system enhancements 

• Supervise, train, and mentor AP staff to ensure accuracy, efficiency, and adherence to best practices 

• Assign workloads, monitor performance, and support team development 

• Establish and enforce internal controls, policies, and AP best practices 

• Ensure compliance with audit requirements, firm policies, and 1099 reporting 

• Support internal and external audits by providing documentation and analysis 

• Serve as primary point of contact for vendor inquiries and issue resolution 

• Collaborate with attorneys and administrative staff on expense coding and approvals 

• Reconcile AP subledger to the general ledger and support month‑end and year‑end close 

• Prepare AP reports and analyze data to identify trends and process improvements 

Requirements

• Bachelor’s degree in Accounting, Finance, Business Administration, or a related field, or equivalent practical experience 

• Minimum of 4 years of experience in accounts payable or financial operations, with demonstrated depth in AP processing, controls, and vendor management along with experience working with accounting systems and cloud‑based financial or AP platforms 

• Minimum 2 years of supervisory or lead experience, such as assigning work, reviewing output, mentoring staff, or acting as a subject‑matter lead 

• Intermediate to advanced proficiency in Microsoft Excel (e.g., Pivot Tables, VLOOKUP/XLOOKUP) for reporting and reconciliation 

Preferred Qualifications

• Experience working in a professional services law firm environment 

• Hands‑on experience with ProLaw 

• Experience using Bill.com or similar AP automation platforms 

• Familiarity with internal controls and audit support processes 

• Strong analytical and problem‑solving skills 

• Excellent organizational and time‑management skills 

• Ability to work independently and manage competing priorities 

• Comfort learning and adopting new technologies, including AI‑enabled t