Assistant Buyer, Paid Social

About this role

WHO WE ARE

Crossmedia is the global media independent. We’re committed to doing media and business the right way, guided by the principles of TRUST, REASON and the Pursuit of HAPPINESS. Crossmedia US was founded in NY in 2000 and is one of the largest minority-owned full-service media planning & buying agencies in the nation. We are 500+ Crossmedians worldwide with big ambitions to continue to grow with soul.

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. We are and always have been a values-based organization. We earn our clients TRUST by ensuring media transparency in our business model and objectivity in decision-making. We apply REASON & logic to finding solutions to our clients' greatest business challenges. The Pursuit of HAPPINESS matters to us. Big time. We invest in each colleagues’ professional & personal wellbeing and growth. It’s why we have countless initiatives, clubs & cultural events dedicated to our people and why we have been the top ranked media agency named to Ad Age’s Best Places to Work for the past seven years in a row.

We have offices in the US, London and Germany. Our client roster includes U.S. Bank, Invesco, Newell Brands, NASCAR, Planet Fitness, American Cancer Society, Ricola, Herschend Family Entertainment, Zalando, Edible Arrangements, Citizens Bank, and more.

We're looking for curious, collaborative, and motivated individual who is excited to launch a career in media. As an Assistant Buyer, Paid Social , you'll play an important role in helping plan, execute, and optimize paid social campaigns for a diverse portfolio of clients.

This entry-level role is designed for individuals who are eager to learn. You'll receive hands-on training from experienced media professionals while developing expertise across the paid social landscape, media planning, campaign execution, reporting, and client service. Along the way, you'll build strong analytical, communication, and project management skills while working with leading social platforms and industry tools.

Success in this role comes from being organized, accountable, naturally curious, and excited to learn in a fast-paced, team-oriented environment.

At Crossmedia, it's about more than doing great work—it's about doing things the right way. Our values of Trust, Reason, and the Pursuit of Happiness guide how we work together, serve our clients, and support one another every day.

ROLE & RESPONSIBILITIES

As an Assistant Buyer, you'll support Buyers and Supervisors throughout the lifecycle of paid social campaigns by:

• Assisting with planning, campaign setup, execution, and reporting across paid social platforms.

• Supporting the development of media plans, presentation decks, flowcharts, spec sheets, and campaign documentation.

• Gathering campaign data, platform costs, audience insights, and other information to support planning recommendations.

• Collaborating with internal teams including Media Operations, Ad Operations, Finance, Analytics, and Planning to ensure campaigns launch accurately and efficiently.

• Creating media contracts and maintaining accurate campaign details within internal systems.

• Monitoring campaign pacing, budgets, and delivery while helping identify optimization opportunities.

• Supporting campaign trafficking and quality assurance alongside Ad Operations and media partners.

• Assisting with campaign reporting, proof-of-performance documentation, and post-campaign recaps.

• Managing day-to-day communication with internal teams, media partners, creative agencies, and, over time, clients.

• Staying current on emerging social platforms, industry trends, and new advertising opportunities.

What We're Looking For

We're looking for someone who is:

• Curious and eager to build a career in digital media and advertising.

• Highly organized with strong attention to detail.

• Comfortable managing multiple priorities in a fast-paced environment.

• An effective communicator with strong written and verbal communication skills.

• Collaborative, dependable, and committed to delivering high-quality work.

• Analytical and interested in using data to solve problems and improve performance.

• Open to feedback and motivated by continuous learning and professional growth.

REQUIREMENTS

• Bachelor's degree or equivalent experience.

• Strong proficiency in Microsoft Excel, PowerPoint, and Outlook.

• Excellent organizational, time management, and communication skills.

• Ability to work both independently and collaboratively.

• Interest in paid social media, digital marketing, or advertising is strongly preferred.

• 3-6+ months of hands-on experience in execution & optimization of digital media campaigns with a focus in Paid Social

• Analytical skills, both the ability to interpret overall social performance and paid campaign performance (within and beyond KPIs of social platforms)

• A passionate, resourceful, curious problem-solver.

Our hybrid work model gives employees flexibility while supporting collaboration, mentorship, and professional growth. Assistant Buyers should expect to work from the office at least two days per week , allowing for in-person training, team collaboration, agency meetings, and relationship building.

If you're excited to start your career in paid social advertising and want to grow alongside a supportive team that values curiosity, integrity, and innovation, we'd love to hear from you.

Salary $47-$50k - commensurate with experience (based on skills and overall qualifications) CROSSMEDIA BENEFITS

Our principles of Trust, Reason, and the Pursuit of Happiness are brought to life through benefits that recognize and support the diversity and physical, emotional, and professional well-being of our people, including:

• Flexibility to work in hybrid manner with in-office and work from home options (depending on role).

• Open/Flexible PTO/Annu

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