Skip Navigation
Job Search

Trading Specialist - CR

Job Number: R0002685 Posted On: 08/25/2026 Location: San José, Provincia de San José Additional Locations: San Jose, San Jose, Costa Rica
Apply Now

About the Company 

Infillion is the first fully composable advertising platform, built to solve the complexity, waste, and opacity in the digital media ecosystem of the last decade. Born from $750 million in investment and the unification of category-defining technologies, including MediaMath, TrueX, Gimbal, Drawbridge, and most recently Catalina, Infillion engineered these powerful assets into scores of interchangeable, agentic-ready components. 

Infillion provides a single, flexible infrastructure that serves media buyers, tech decision-makers, and media sellers. Whether through white-glove managed service, self-service control, or API-based automation, Infillion empowers businesses to execute their unique strategies with zero-hop efficiency, proprietary AI logic, and radical data transparency. Headquartered in New York City, with employees located globally in the US, Costa Rica, and Europe, Infillion powers the world's leading brands, agencies, and platforms. Learn more at www.infillion.com.

About the Job: 


We are seeking a smart, data-focused Trading Specialist to join our MediaMath Trading team. The Trading team is responsible for driving client performance on Infillion’s MediaMath platform, leveraging cutting-edge product functionality as well as a vast network of best-in-class partnerships to do so.

As a Trader, you will become a subject matter expert on how media campaigns are managed using programmatic platforms and optimization engines. You will manage campaigns as well as consult directly with clients to ensure optimal campaign performance. You will also participate in research, analytics, and product testing efforts to develop new best practices and cultivate industry thought leadership.

What you'll be doing:

  • End to end campaign activation and management
  • Trade and optimize media in the MediaMath Platform
  • Develop client specific optimization strategies
  • Interface directly with MediaMath clients – translating performance, troubleshooting issues, and sharing insights and recommendations
  • Leads and assists with data collection and analysis for QBRs and research initiatives
  • Train clients on trading best practices and serve as the MM institutional knowledge hub for clients.


Who You Are:

  • Able to think creatively about challenging problems
  • Data driven, analytical individual able to create actionable insights from any data set
  • Proactive, able to self-manage and juggle multiple priorities
  • Someone with an insatiable appetite for learning in a collaborative environment
  • An excellent communicator – ability to distill key and complex ideas for non technical audiences
  • Comfortable working in a fast-paced, fun, and entrepreneurial environments
  • Collaborative and team focused


What you have:

  • 2+ years experience working within the Programmatic or advertising industry specifically within a client service, account management, or trading/campaign management team
  • Experience managing enterprise-level clients, dealing with key stakeholders, and focused on campaign performance and optimization
  • Strong analytical skills - Must be comfortable with MS Excel, data analysis, and internet technologies

Apply Now

Saved Jobs

There are no saved jobs.

Work in San José

Check out where you could be working if you apply.

View this location

Recent Jobs

You currently have no Saved Jobs

Featured Jobs

View All Jobs

Job Alerts

Join our talent network and receive company news and job alerts to your inbox.

Interested InSelect a job category from the list of options. Search for a location and select one from the list of suggestions. Finally, click “Add” to create your job alert.

  • Global Technology Development, San José, Provincia de San José, Costa RicaRemove
  • Technology, San José, Provincia de San José, Costa RicaRemove

By submitting your information, you acknowledge that you have read our privacy policy and consent to receive email communication from Catalina.

sign up