Job Description
Position Summary
The Supervisor, Integrated Investment & Operations is responsible for overseeing the operational excellence and lifecycle management of digital media campaigns across assigned client accounts. This role serves as the central operational hub connecting Media Planning, Investment and Finance.
The Supervisor ensures that all campaign details on client-approved blocking charts are accurately translated into Mediaocean (Prisma) Book, Bill & Pay (BBP) orders, actively maintained throughout flight, and reconciled flawlessly at campaign close. The ideal candidate pairs deep expertise in media buying platforms and ad tech workflows with rigorous attention to detail and cross-functional leadership.
Key Responsibilities
1. Order Management & System Synchronization (Book, Bill & Pay)
- Order Creation & Maintenance: Build, manage, and audit all media authorizations, insertion orders (IOs), and Book, Bill & Pay (BBP) line items in Mediaocean (Prisma).
- Blocking Chart Parity: Ensure strict 1:1 synchronization between client-approved media flowcharts/blocking charts and Prisma procurement structures across all media partners, tactics, placements, and flight dates.
- Change Order Management: Facilitate real-time revisions, budget shifts, and schedule reallocations, ensuring corresponding Prisma buy orders, billing parameters, and vendor IOs are updated promptly.
2. Campaign Lifecycle & Workflow Orchestration
- Pre-Launch Setup & QA: Oversee campaign setup workflows, including creating estimates and client taxonomy generation.
- In-Flight Stewardship: Partner with Activation and Business Solutions teams to monitor pacing, delivery, and discrepancy tracking between Prisma, ad servers, and vendor reports.
- Billing & Financial Reconciliation: Support monthly actualization, clearance of invoice discrepancies, and vendor payment approvals by working with Operations and Finance to prevent billing bottlenecks and maintain clean audit trails.
3. Cross-Functional Coordination
- Internal Hub: Act as the primary operational liaison between Strategy/Planning, Investment, and Billing/Finance teams.
- Vendor Governance: Issue official vendor Insertion Orders (IOs), manage terms/attestations, and resolve delivery, tracking, or billing disputes alongside Business solutions and Activation teams.
- Process Optimization: Identify operational friction points across the campaign lifecycle and implement standardized templates, naming conventions, and QA checklists.
4. Team Leadership & Quality Assurance
- Mentorship & Development: Train, mentor, and supervise junior operational staff (Associates / Coordinators) on Prisma order entry, workflow standards, and troubleshooting procedures.
- Audit & Compliance: Conduct regular internal audits on active accounts to maintain standard operating procedures (SOPs) and data integrity across all systems.
Qualifications
- Experience: 3–5 years of hands-on experience in media operations, investment, or campaign management within an agency environment.
- Platform Proficiency: Advanced proficiency in Mediaocean (Prisma).
- Workflow & Billing Expertise: Deep understanding of agency financial workflows, media billing cycles (Book, Bill, Pay), media authorizations, and invoice reconciliation.
- Organizational Acumen: Exceptional analytical, organizational, and problem-solving skills with a high degree of precision and accountability.
- Communication: Strong interpersonal and communication skills to effectively manage relationships across cross-functional internal teams and external media partners.
Disclosures
The statements herein are intended to describe the general nature and level of work being performed by employees and are not to be construed as an exhaustive list of responsibilities, duties and skills required of personnel so classified. Furthermore, they do not establish a contract of employment and are subject to change at the discretion of the employer.
In our recruitment process, we may use AI-powered tools to help identify potential candidates for this role.
Applicants with disabilities who may need a reasonable accommodation during the interview/hiring process should email the following: [email protected]
Salary Range 65,000.00 CAD - 80,000.00 CAD
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Disclosures:The statements herein are intended to describe the general nature and level of work being performed by employees and are not to be construed as an exhaustive list of responsibilities, duties and skills required of personnel so classified. Furthermore, they do not establish a contract of employment and are subject to change at the discretion of the employer.
In our recruitment process, we may use AI-powered tools to help identify potential candidates for this role.
Applicants with disabilities who may need a reasonable accommodation during the interview/hiring process should email the following:
Salary Range
$65,000.00 - $80,000.00Skills Required
- 3-5 years of hands-on experience in media operations, investment, or campaign management within an agency environment
- Advanced proficiency in Mediaocean Prisma
- Deep understanding of agency financial workflows, media billing cycles, media authorizations, and invoice reconciliation
- Exceptional analytical, organizational, and problem-solving skills
- High degree of precision and accountability
- Strong interpersonal and communication skills for managing cross-functional teams and external media partners
Horizon Media Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Horizon Media and has not been reviewed or approved by Horizon Media.
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Healthcare Strength — Healthcare Strength: Health coverage spans medical, dental, vision, mental‑health resources/EAP, and HSA/FSA, alongside life and disability insurance. Add‑ons such as fertility assistance, pet insurance, identity‑theft protection, and fitness reimbursement expand the package.
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Leave & Time Off Breadth — Leave & Time Off Breadth: Company‑paid holidays and “unlimited” PTO are widely highlighted. Hybrid/remote flexibility features across roles and locations.
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Parental & Family Support — Parental & Family Support: Parental leave is described as generous, with childcare resources and family medical leave available. Family‑supportive benefits are presented as part of the standard offering.
Horizon Media Insights
What We Do
Horizon Media is a leader in driving business-based outcomes for marketers. The company was founded in 1989, is headquartered in New York, and has offices in Los Angeles and Toronto. With estimated billings of $8.7 billion and over 2,300 employees, Horizon is the third largest U.S. media agency according to COMvergence data. Recognized as one of the world’s ten most innovative marketing and advertising companies by Fast Company, Horizon Media has been named Media Agency of the Year by MediaPost, Adweek and AdAge and is known for its highly personal approach to client service. Renowned for its culture, Horizon is also consistently named to all the prestigious annual Best Places to Work lists published by Fortune, Forbes, AdAge, Crain’s New York Business and Los Angeles Business Journal; including “Best Workplaces for Diversity,” “Best Workplaces for Women,” and “Best Workplaces for Millennials” honors. Bill Koenigsberg, President, CEO and Founder of Horizon Media, has earned almost every industry accolade and, in 2019, garnered the marketing’s highest honor when he was inducted into the American Advertising Federation (AAF) Hall of Fame. TOGETHER WE'RE BUILDING A PLACE OF BELONGING At Horizon, diversity, equity and inclusion are pillars of our culture. Numerous studies show that a more diverse workplace benefits everyone in so many ways; employees, organizations and their clients. When people feel that they belong and are included, they become committed and feel empowered to be more innovative. And that is the workforce we strive to have. We welcome everyone and do not discriminate based on gender, race, religion, sexual orientation, age or disability. We want you to feel welcomed, safe and know that you’re a vital member of our community. For more information, visit: www.horizonmedia.com or www.horizonmedia.com/careers.







