Assistant Buyer, Integrated Media Investment

New York City, NY (Hybrid)

$43K/yr – $48K/yrEntry LevelFull time

Posted 3 weeks ago

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Job Summary

Own the administrative engine of a busy media buying function: keep buys on track, feed data to dashboards, and translate delivery into action for optimization. Own records, workflows, and vendor coordination that keep campaigns moving from brief to post-buy analysis.

  • Ops Execution: Manage insertion orders, authorizations, timelines, and asset delivery to ensure timely activation.
  • Data & Reporting: Maintain campaign data across internal systems and compile performance reports for partners and clients.
  • Vendor & Budget Hygiene: Track spend, reconcile invoices, and organize contracts and PO materials for smooth execution.

Job Description

Responsibilities

  • Assist in the preparation of media authorizations and insertion orders to activate buys
  • Enter campaign data and maintain accurate records across internal systems (e.g., OneStrata, Investment Trackers)
  • Help manage timelines and deliverables, ensuring vendors receive specs and assets on time
  • Monitor campaign pacing and delivery, flagging any under- or over-delivery to the team
  • Compile weekly and monthly campaign performance reports, pulling data from media partners, platforms, and internal dashboards
  • Analyze delivery vs. planned metrics and assist in optimization recommendations
  • Help create and update post-buy analyses for client presentations
  • Track billing and work with finance teams to resolve discrepancies or reconcile vendor invoices
  • Maintain budget trackers and assist in updating actuals vs. planned spend
  • Organize documentation including contracts, screenshots, and proof of performance

Requirements

  • Bachelor’s in Advertising, Marketing or related field
  • A very high proficiency with Microsoft Office Suite tools, and especially be a wiz with Excel, PowerPoint and Outlook
  • Strong attention to detail and highly organized
  • Must have a love for numbers and a high numerical aptitude
  • Excellent communication skills
  • Eagerness to learn and adaptability
  • A strong interest and knowledge of Media Buying and Planning
  • Proximity to NY office
  • Previous marketing, advertising or media agency experience are a plus.
  • Previous marketing, advertising or media agency experience are a plus.

Preferred

  • Previous marketing, advertising or media agency experience are a plus.

Benefits

  • Flexibility to work in hybrid manner with in-office and work from home options (depending on role).
  • Open/Flexible PTO with US & UK specific policies
  • Sponsored healthcare options and agency-wide physical & mental health support
  • 401k with company match (USA), and generous Pension (UK)
  • Paid sabbatical at significant milestone anniversaries
  • Generous paid parental leave policy
  • Life milestone recognition & support
  • The Pursuit of Happiness Fund devoted to helping Crossmedians find their happy (be it travel, enrichment class, fitness membership or professional development)
  • Cell phone/tech reimbursement
  • Student Loan payment plan (US)
Crossmedia Inc logo

Crossmedia Inc

3.9 Glassdoor

Welcome to Crossmedia, a global, independent and minority-owned, full-funnel agency committed to doing media the right way for the last 25 years. Rooted in TRUST, REASON, and the Pursuit of HAPPINESS, we are committed to acting without bias and backed by the strictest transparency standards, making decisions grounded in data and common sense, and leading with strategies that deliver employee, client, and customer satisfaction. We focus on what media agencies should do: create innovative connections between brands and people regardless of channel or budget, and we do it in an honest way.Our culture is also pretty great. We invest in every colleague’s professional and personal wellbeing and growth, with XM groups like XMEquity365, XMFit, XMReads, and more! Of course, we also have our famous Burgerday every month, along with regular wellness workshops and educational sessions—part of the reason Crossmedia has been named to Ad Age’s Best Places to Work list the past six years in a row!Crossmedia is headquartered in New York and has hubs across the U.S., London, Germany and Toronto.

Founded in 2000
New York, New York, USA
316 employees (94 in marketing)
71% recommend to a friend
89% CEO approval

Traffic Signals

Monthly Visitors
8.6K
Traffic Source Mix
Search
34.6%
Direct
52%
Referral
6.4%
Social
5.8%
Paid
1.1%

Headcount Trend

Current headcount: ~316

Marketing Team

Marketing Team Size
94 (30% of company)
Marketing Roles Posted (Last 30 Days)
4

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