Client Success Manager
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 an experienced and dedicated individual to join Infillion’s Catalina CR team as a Client Success Manager. The Client Success Manager is responsible for managing both self-service programmatic campaigns and managed service relationships with some of our largest clients and collaborating with a team of Client Success professionals. This role plays a crucial role in ensuring client satisfaction, retention, and growth.
What you'll be doing:
Manage and grow strategic relationships with some of our largest clients across the Infillion suite of programmatic and managed service media solutions.
Serve as the primary point of contact for client success, overseeing service delivery across Professional Services, onboarding, campaign activation, and ongoing account management.
Build trusted partnerships with client stakeholders across media, marketing, operations, analytics, and executive teams.
Lead client onboarding and implementation, including solution design activation, platform setup, audience and partner integrations, trafficking coordination, and campaign launches across managed service and self-serve environments.
Oversee the end-to-end post-sale campaign lifecycle, from planning and activation through optimization, performance analysis, reporting, and renewal support.
Manage day-to-day account operations, ensuring campaigns launch successfully, pacing and delivery goals are met, and client expectations are consistently exceeded.
Act as the primary escalation point for delivery, activation, billing, and technical support inquiries, driving timely issue resolution and proactive communication.
Partner closely with Sales, Ad Operations, Programmatic Trading, Product, Analytics, and Client Services teams to support client growth, retention, and upsell opportunities.
Coordinate cross-functional collaboration to plan, build, launch, optimize, and troubleshoot digital media campaigns across channels and formats.
Support clients transitioning between self-service and managed service models by facilitating onboarding, education, workflow adoption, and change management.
Educate clients on new platform capabilities, media products, targeting solutions, measurement offerings, and industry best practices to drive adoption and campaign success.
Analyze campaign performance and provide strategic recommendations focused on optimization, efficiency, and achieving client KPIs.
Identify opportunities to improve operational efficiency by creating, refining, and scaling internal processes, workflows, and documentation.
Maintain strong knowledge of the programmatic advertising ecosystem, including DSPs, data integrations, targeting methodologies, measurement solutions, and campaign performance metrics.
Attend and lead client meetings, business reviews, onboarding sessions, and strategic planning discussions as needed.
Who you Are:
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:
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.
A bachelor’s degree
5+ years of experience working within the Programmatic industry, specifically within a client services or trading team.
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 -
Health Insurance: We offer a supplemental benefits plan through Panamerican Life Insurance Group (PALIG) for all employees. If you wish to enroll any eligible dependents, you may do so by covering the associated cost.
Life Insurance.
Work From Home: We offer eligible CR employees the ability to work from home up to 4 days per week. 1 day at the office will be coordinated with your manager so you can have human interaction and work together with your team.
Transportation and Meal Subsidy: Monthly subsidy of US $50 each ($100 total/month).
Vacation: 12 days annually: Employees are eligible to take accrued time off after successful completion of the 90-day probation period.
Personal Days: All regular full-time employees will be allotted 5 personal days annually with Manager approval. Also, in recognition of service to Infillion’s Catalina CR, employees will be awarded 1 additional personal day at 3 years, 2 additional personal days at 4 years, and a maximum of 3 additional personal days at 5 years, and each year thereafter.
AsoCatalina: Employees of Infillion’s Catalina CR can participate in the association after successful completion of the 90 day probationary period. Employees part of the association will contribute the agreed to % of salary, and Infillion’s Catalina CR will determine the company match.
EAP Program: "Employee Assistance Program" which involves a Professional Counseling Service (Psychologist) to workers and/or their dependents so that they can find solutions to their personal, legal (non-labor), financial and nutritional issues and/or problems.
We are committed to an inclusive and diverse work environment. Infillion's Catalina CR 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.