Hydrogen Advertising is hiring: Media Billing Coordinator in Seattle

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We’re seeking a Media Billing Coordinator to support our growing agency during an exciting period of expansion. This junior-level role will serve as a shared resource between our Accounting and our Media team, focusing on all things media billing, payment, and reconciliation. The ideal candidate is detail-oriented, eager to learn, proactive, and comfortable balancing finance and media responsibilities.

Responsibilities

You will be responsible for the following areas:

• Manage client-side media billing, including issuing invoices and tracking receivables
• Process media vendor invoices and ensure timely payments for media partners
• Support budget reconciliation and assist with monthly/quarterly reporting
• Maintain accurate and up-to-date billing records across client and vendor accounts
• Partner with the media team to confirm budgets, track spend, and flag discrepancies
• Assist with financial documentation and audits as needed
• Provide administrative support to both the Finance and Media departments

Qualifications

You have the following experience (at a minimum)

• 1–2 years of work experience in accounting, billing, accounts payable/receivable, or related fields
• Bachelor’s degree in Marketing, Advertising, Accounting, Finance, Business, or related field (or equivalent experience)

You have the following attributes and interpersonal skills

• Familiarity with advertising/media industry billing processes preferred and/or understanding of marketing and advertising methods (Digital, Traditional, etc)
• Strong attention to detail, organization, and accuracy
• Ability to manage multiple priorities and deadlines
• A team player with strong communication and problem‑solving skills
• Previous experience in an advertising or marketing role is a plus.

You have the following technical skills

• Experience with media billing platforms such as Bionic, Workamajig, NetSuite, or Advantage is desired, but not required
• Proficiency in Microsoft Office/SharePoint (Word, Excel, PPT), Google Workspace (Docs, Sheets, Slides) and comfort with financial software/tools

Physical Requirements

• Must be able to sit and maintain focus for extended periods
• Must be able to perform repetitive tasks such as typing, data entry, etc.
• Must be able to use a computer, keyboard, and mouse
• Monday – Friday

Benefits

• We offer competitive salary and benefit opportunities
• Short-term/long-term disability and life insurance
• 401k with employer match
• Home office annual stipend

DIRECT REPORTS: N/A

STATUS: Full‑time

JOB CLASS: Exempt

PAY SCALE: $63,000 – $70,000

TRAVEL: N/A

Seniority level

• Entry level

Employment type

• Full‑time

Job function

• Accounting/Auditing and Finance
• Advertising Services

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