logo inner

Director, Client Success - MediaMath

InfillionChicago, Illinois, United States | Los Angeles, California, United States | New York, New York, United StatesOnsite

About the Company


Infillion is the only global media platform combining the power of MediaMath’s industry-leading data and technology with the unrivaled performance of TrueX’s interactive video and CTV technology. Infillion works with more than 1,400 of the world’s leading agencies and brands with premium managed- and self-service cookieless media solutions that deliver guaranteed attention in an increasingly opaque media environment. Infillion is headquartered in New York City, and owns Gimbal location-based technology, InStadium, NeXt, Analytiks.ai and Phonic.ai.

Infillion can be found online at www.Infillion.com. The company is one of the most awarded adtech companies in the media, marketing, advertising and technology industries and is now one of FastCo’s Most Innovative Companies.

About the Job: 


We are seeking an experienced and dedicated individual to join our MediaMath team as the Director of Client Success. The Director of Client Success is responsible for managing relationships with some of our largest clients and leading a team of Client Success professionals. This role plays a crucial role in ensuring client satisfaction, retention, and growth.

What you'll be doing:


  • You will be responsible for managing the relationships of some of our largest clients and leading a team of Client Success professionals.
  • Client Success is the primary point of contact for service delivery across Professional Services as well as project managers for onboarding (activation of solution design) and product activation.
  • They diagnose and coordinate with necessary MediaMath resources in order to achieve the client’s goals.
  • They can be deployed as ongoing service (Gold, Platinum) or on a project basis, both for a fee.
  • Own and develop strong relationships with the client and key stakeholders at all levels.
  • Project manage client onboarding and implementation process including product, channel, and partner activation, campaign launches, and ad-hoc projects.
  • Coordinate resource management and allocation and control activities across Professional Services teams to ensure projects are delivered on-time and on budget.
  • Serve as the main point of contact for delivery and activation questions from the client and issue resolution as needed (i.e., communication and expectation setting, raising tickets).
  • Help facilitate change management between self and managed service.
  • Understand and communicate relevant new products, features, and capabilities as they become available and ensure successful deployment and activation with your clients.
  • Creating and streamlining processes and workflow.
  • Creating client staffing plans across Sales and Professional Services.
  • Client Training (facilitating educational programs).

Who you Are: 


  • A visionary thinker who thrives on solving complex partnership challenges.
  • Proactive and capable of managing multiple priorities with a global perspective.
  • Committed to continuous learning in a collaborative environment.
  • An excellent communicator, capable of distilling key partnership concepts for a diverse audience.
  • Comfortable working in a fast-paced, dynamic, and collaborative environment.
  • A team player who values collaboration and mutual success.

What you have: 


  • Is experienced with managing enterprise-level clients, dealing with key stakeholders, and focused on account retention and growth.
  • Experienced in online advertising account management, marketing consulting, and/or brand management or yield optimization.
  • An experienced people manager, with proven experience of creating development plans for their team.
  • A bachelor’s degree
  • 7+ years of experience working within the Programmatic industry, specifically within a client services team.
  • A background in both Strategy and Activation.
  • Excellent listening, negotiation, presentation, written and verbal communication skills.
  • Strong analytical skills.
  • Must be comfortable with MS Excel, data analysis, and internet technologies.

Benefits & Perks


It’s no secret that we work hard, but we also strive to create an office environment where the lines between work and play are blurred. This means we offer these great perks to help keep our team healthy, productive, and happy.

  • Base Salary of $180,000 - $195,000 plus commission
  • 100% company-paid health, dental, and vision coverage for you and your dependents
  • Company-paid life insurance, short-term, and long-term disability
  • Unlimited paid time off - we trust your discretion
  • Opportunities for profit sharing, bonuses, and ownership
  • 401k plan 
  • Cell phone and gym membership reimbursement
  • Annual professional development stipend

We are committed to an inclusive and diverse work environment. Infillion is an equal opportunity employer. We do not discriminate based on race, color, ethnicity, ancestry, national origin, religion, sex, gender, gender identity, gender expression, sexual orientation, age, disability, veteran status, genetic information, marital status or any legally protected status.

Life at Infillion

The world’s best brands rely on Infillion for media, CX, data, and targeting solutions that simplify the customer journey and produce outstanding advertising and marketing outcomes.
Thrive Here & What We Value- Full-service media solutions for agencies and brands- Proprietary relationships with partners and publishers- Consumer experiences superior to conventional advertising models- Values consumers' time, attention, privacy- Prioritizes employee satisfaction, talent development, leadership- Collaborates with over 1,400 leading agencies and brands- Offers cookieless media solutions in opaque environments- Headquartered in New York City; owns Gimbal, InStadium, NeXt, Analytiks.ai, Phonic.ai- Recognized as an innovative adtech company and FastCo's Most Innovative Company- Provides inclusive and diverse work environment with various benefits
Your tracker settings

We use cookies and similar methods to recognize visitors and remember their preferences. We also use them to measure ad campaign effectiveness, target ads and analyze site traffic. To learn more about these methods, including how to disable them, view our Cookie Policy or Privacy Policy.

By tapping `Accept`, you consent to the use of these methods by us and third parties. You can always change your tracker preferences by visiting our Cookie Policy.

logo innerThatStartupJob
Discover the best startup and their job positions, all in one place.
Copyright © 2025