Assistant Buyer, Integrated Media Investment

Assistant Buyer, Integrated Media Investment
Location: New York, New York

YOUR ROLE
We’re looking for a bright Assistant Buyer, Integrated Media Investment to help manage day‑to‑day responsibilities of paid media campaign management. A naturally curious mind, resourcefulness, a love for numbers and a passion for advertising are a must.

The Assistant Buyer supports the execution, maintenance, and reporting of media buys across traditional and digital channels. This entry‑level role is designed for a motivated, detail‑oriented individual looking to build foundational experience in media planning and buying. You’ll work closely with internal teams, vendors, and media partners to ensure campaigns are executed accurately and efficiently, while learning about pricing strategy, media performance, and client servicing.

Note: this role requires proximity to our NY office. We offer a hybrid work setting with employees working both onsite and from home, with the assistant in the office an average of two days a week for training, collaboration, and learning.

KEY RESPONSIBILITIES
Campaign Execution & Support

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

Reporting & Optimization

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

Communicate directly with vendors to confirm buys, gather reporting data, and resolve execution issues

Attend vendor meetings and take notes to assist the broader team in evaluating new opportunities

Internal Collaboration & Learning

Attend and note‑take during team meetings, client briefings, and status calls as appropriate

Participate in training sessions to deepen knowledge of media buying systems, analytics tools, and the media landscape

Stay informed on media industry trends, competitive campaigns, and emerging platforms

REQUIREMENTS

Bachelor’s in Advertising, Marketing, or related field

Very high proficiency with Microsoft Office Suite tools, especially Excel, PowerPoint, and Outlook

Strong attention to detail and highly organized

Love for numbers and a high numerical aptitude

Eagerness to learn and adaptability

Strong interest and knowledge of media buying and planning

Previous marketing, advertising, or media agency experience is a plus

SALARY
Salary range: $45k – $48k, commensurate with experience.

CROSSMEDIA BENEFITS

Hybrid work flexibility

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

“Pursuit of Happiness Fund” for professional development and enrichment

Cell phone/tech reimbursement

Student loan payment plan (US)

Learning & Development and training programs

EEO STATEMENT
Crossmedia is committed to providing equal employment opportunities and creating a diverse and inclusive company culture and does not discriminate against candidates and employees because of disability, sex, race, gender identity, sexual orientation, religion, national origin, age, veteran status, or any other basis prohibited by applicable federal, state, or local law.

RELEVANT LEGAL STATEMENT
All job requirements are subject to possible revision to reflect changes in the position requirements, business necessities, and/or to reasonably accommodate individuals with disabilities. Essential and other job functions are subject to modification. This job description does not state or imply that these are the only duties to which the employee will be required. Employees will be required to follow other job‑related duties as requested by their supervisor/manager within guidelines and compliance with laws in the US and UK.

Continued employment remains on an "at‑will" basis. Reasonable accommodations may be provided to enable individuals with disabilities to perform essential functions in compliance with the Americans with Disabilities Act of 1990 (US based).

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