Superviseur, Opérations Clients / Supervisor, Client Operations

Adelphi Group • Montreal, QC

6d • Hybrid

About The Position

Reporting to the Group Director, Client Operations, the Supervisor, Client Finance Operations leads a team responsible for the financial health and operational accuracy of client accounts. This role sits at the intersection of Finance and Client Operations, combining hands-on oversight of billing, reconciliation, and team escalation with a growing mandate to build, standardize, and continuously improve the operational processes that support the broader Operations function. This role offers a strong career opportunity for someone looking to combine finance expertise with growth into client operations, within a dynamic media agency environment.

Requirements

• 3 to 5+ years of experience in finance operations, client operations, agency operations, or business operations (media agency experience strongly preferred)
• Demonstrated experience supervising, training, or mentoring a team
• Strong understanding of billing, reconciliation, accounts payable/receivable, and month-end close processes
• Experience supporting process documentation, workflow design, or process improvement initiatives
• Strong aptitude for learning new technology and platforms; loves challenges and excels at problem-solving
• Advanced Excel skills required (VLOOKUP, pivot tables)
• High attention to detail with a strong quality control focus
• Comfortable preparing and presenting materials for senior leadership review

Nice To Haves

• macros/VBA an asset

Responsibilities

• Supervise, train, and mentor a team responsible for billables analysis and billing summary preparation
• Act as the primary point of escalation for the team on billing, reconciliation, and client finance issues
• Set priorities, manage workload distribution, and monitor quality standards and deadlines across the team
• Monitor and oversee monthly vendor invoice reconciliation across agency accounts, ensuring discrepancies are identified and resolved promptly by the reconciliation team
• Oversee accounts payable and accounts receivable functions as they relate to client billing
• Support month-end and year-end closing procedures
• Maintain strong internal controls and ensure audit readiness
• Address employee and vendor inquiries regarding payment and financial transactions
• Learn, document, and continuously improve client finance and operational processes
• Build, update, and maintain process documentation, workflow guides, RACIs, and escalation paths for client finance operations
• Identify bottlenecks in billing, reconciliation, and reporting workflows and lead the implementation of process improvements
• Partner with Finance, Planning, Activation, and Analytics teams on process application, change management, and adoption
• Support annual reviews of client playbooks and financial process documentation
• Support the financial and operational onboarding of new clients, scopes of work, and team members
• Coordinate billing and finance setup checklists across Finance, Legal, Project Management, and account teams

Benefits

• Omnicom’s policy requires employees to work in the office for a minimum of three days a week, unless additional in-office days are directed by their agency or manager.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed