Job Description
Job Summary:
The Billing Associate is responsible for delivering accurate and timely client billing in accordance with contractual terms and established billing requirements. This role supports HM’s ability to provide a high level of client service while helping ensure the organization meets its financial obligations to vendors.
Main Responsibilities:
- 60% - Client Billing
- 15% - Departmental meetings
- 20% - Status reporting
- 5% - Ad-hoc requests
- Ensure 100% billing accuracy across all assigned client accounts.
- Manage billing, including client fees, media invoices, and travel and expense charges.
- Establish and maintain organized, accurate records for all client billing documentation.
- Partner with Brand Teams to ensure billing is completed according to established timelines.
- Provide Brand Teams with draft billing, reports, and support client documentation as needed, within required timelines.
- Prepare and distribute complete client billing packages, including email distribution and uploading invoices to the designated invoice processing platform.
- Promptly notify the Billing Manager of workflow issues or Brand Team requests that deviate from established processes.
- Maintain an up-to-date calendar of assigned client billing responsibilities and deadlines.
- Support ad hoc billing requests and special projects as needed.
- Maintain scheduling flexibility to meet client needs, deadlines, and expectations.
- Key Relationships:
- Internal:·
- Shared Service Teams/Brand Teams·
- Client billing team and Senior Management·
- Reconciliation Teams
- External: ·
- Audit requests·
- Client billing contacts
Key Behavioral Competencies:
- Demonstrates clear and effective written and verbal communication skills.
- Maintains strong organizational skills, manages priorities independently, and partners with the direct supervisor to adjust priorities as business needs evolve.
- Takes initiative and consistently delivers accurate, high-quality work within established deadlines.
- Demonstrates a high level of attention to detail and accuracy.
- Shows a strong willingness to learn, grow, and develop new skills.
- Adapts effectively to changing priorities, processes, and business needs.
- Maintains a professional and respectful approach in all interactions.
- Actively contributes to ongoing departmental process improvements.
- Effectively manages multiple priorities while collaborating with others and demonstrating a strong work ethic.
- Background:
- Demonstrates a foundational understanding of accounting principles.
- Possesses strong mathematical and numerical skills.
- College Degree or Prior Experience
- Knowledge of Excel, Word, Power Point and Adobe AcrobatFreeWheel (Strata/SBMS) and/or Media Ocean (Prisma) experience is a plus
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Horizon Media is proud to be an equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements.
Salary Range
$40,000.00 - $50,000.00A successful applicant’s actual base salary may vary based on factors such as individual’s skill sets, experience, training, education, licensure/certifications, and qualifications for the role. As an organization, we take an aptitude and competency-based hiring approach. We provide a competitive total rewards package including a discretionary bonus and a variety of benefits including health insurance coverage, life and disability insurance, retirement savings plans, company paid holidays and unlimited paid time off (PTO), mental health and wellness resources, pet insurance, childcare resources, identity theft insurance, fertility assistance programs, and fitness reimbursement.
Skills Required
- Foundational understanding of accounting principles
- Strong mathematical and numerical skills
- College degree or prior experience
- Knowledge of Microsoft Excel
- Knowledge of Microsoft Word
- Knowledge of Microsoft PowerPoint
- Knowledge of Adobe Acrobat
- FreeWheel, Strata/SBMS, and/or Mediaocean/Prisma experience
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.









