Application Support Specialist, Canada Media ; Temp

Job Description

Horizon Media, founded in 1989 by Bill Koenigsberg, is recognized as one of the most innovative marketing and advertising firms. Headquartered in New York City, with offices in Los Angeles and Toronto, Horizon is known for its data-driven approach, highly personal client service, and people-first culture. We hire talented thinkers, doers, dreamers, and makers, challenge them, and give them opportunities to grow.

The Application Support Specialist, Canada Media Applications is a temporary role providing hands‑on Level 1 and Level 2 support as Horizon Canada transitions to and stabilizes within a Horizon‑managed Mediaocean environment. Reporting to the VP, Business Operations, this role will support the Canadian business from implementation and cutover through production stabilization and ongoing operations.

The role will partner across Canada Media Operations, Finance, Business Operations, Shared Services, Financial Systems, Technology, Security, and external providers. The successful candidate will combine application‑support discipline with practical knowledge of media planning, buying, billing, reconciliation, master data, access, reporting, and integrations.

• Primary Support:
  Serve as the primary application support resource and day‑to‑day liaison for Horizon Canada across Mediaocean Prisma, Spectra Digital, Spectra Linear, OX, and other supported media applications.
• Incident, Request & Queue Management:
  Manage Level 1 and Level 2 incidents, service requests, problems, and escalations in Service Now from intake through closure, including prioritization, documentation, ownership, user updates, and SLA adherence.
• Issue Resolution:
  Troubleshoot campaign setup, workflow, configuration, billing, reconciliation, master data, reporting, integration, authentication, and user‑access issues; document findings and coordinate escalation when needed.
• Vendor Coordination:
  Coordinate resolution with Mediaocean, internal application owners, Technology teams, Edenred / IPS, and other vendors or partners.
• Problem Management:
  Identify recurring incidents and root causes, document support risks, and coordinate preventive or corrective action.

• Implementation Readiness:
  Participate in implementation and transition working sessions and translate Canadian operational needs into executable setup, configuration, data, access, testing, and support activities.
• Master Data Readiness:
  Support the review, validation, cleanup, preparation, and controlled loading of users, clients, products, suppliers, vendors, remit and pay‑to relationships, stations, publications, security roles, and other required master data.
• Testing & Validation:
  Develop and execute test scenarios and support integration testing, UAT, regression testing, defect triage, retesting, and business validation across planning, buying, billing, reconciliation, reporting, and downstream interfaces.
• Integration Support:
  Monitor and help troubleshoot application and data‑flow issues across Mediaocean, integrations, Net Suite interfaces, Edenred / IPS workflows, and related reporting or financial processes; route functional and technical issues to the correct owner.
• Cutover & Hypercare:
  Support cutover planning, production readiness, go‑live, hypercare, issue triage, production validation, and stabilization until the Canadian environment is operating reliably.

• User Administration:
  Provision, modify, and deprovision approved users, roles, permissions, user groups, security profiles, and licenses across supported applications.
• Access Governance:
  Support periodic…