Customer Success Manager

Infosum
New York, NY

InfoSum is the world’s leading data collaboration platform used by enterprise businesses to collaborate across a custom private data network of their partners, delivering richer customer experiences and consolidating data inputs for AI models, all while prioritizing consumer privacy. Our client base is one of the most diverse and exciting portfolios on the market and this role will play an integral part in building strong relationships and helping to diversify our portfolio even further!

As a people-first organization, we can offer you the personal and professional flexibility needed to get the job done and grow in your career while helping InfoSum challenge the status quo. If you want to work with a business that encourages collaboration and champions the idea that the sum is greater than its parts, then we want to hear from you.

About you

We are looking for a passionate individual with some experience in the AdTech space owning a portfolio of client relationships. Within your first year at InfoSum, you will find yourself managing a portfolio of 15-20 major client relationships and starting to look for ways to attract new customers through your existing relationships.

You will be a great fit if you are able to manage a sophisticated and diverse portfolio of clients to ensure they receive the highest value from our platform. A self-starter attitude and the ability to ask the right questions will see you succeed. You should also be commercially astute, interested in mastering new technology, and detail-oriented.

About the role

You would be responsible for managing and growing strategic accounts by working with our clients’ engineering, product operations, and commercial teams to understand and implement an ever-growing set of data collaboration use cases leveraging our platform. You can expect your day-to-day operational responsibilities to cover:

  • Driving daily interactions with a defined set of partners
  • Act as the client’s go-to advocate and navigate internal processes at InfoSum and the client to provide the best outcome for the client
  • Deliver analytical insights to client by providing actionable recommendations
  • Track performance and engagement of the platform to ensure we are driving towards the best possible outcome for the client / their partners
  • Create and establish go-to-market plans for the account and each of its multiple use cases
  • Run a reliable and organized account process that keeps InfoSum on top of deadlines and capable of seamlessly introducing new revenue growth initiatives
  • Demonstrable knowledge of how data and identity are activated in the digital media ecosystem
  • 5-8 years of experience in Client Services/Customer Success in a technology company,, with at least 3 years’ experience in the advertising technology industry (AdTech)
  • Strong understanding of how data and identity is activated in the digital media ecosystem
  • Clear communicator with emphasis on precision to detail
  • Demonstrable track record of successfully growing revenue from complex partnerships
  • Ability to build and cultivate new relationships with potential and existing partners
  • An organised self-starter that pitches in as needed in a fast moving startup environment
  • Excellent interpersonal and customer-facing skills
  • Positive and community-oriented attitude, happy to roll up sleeves and pitch in
  • A high level of curiosity and willingness to understand complex solutions designed to service customer needs
  • Critical thinking to ask tough questions and help the team continuously evolve

You will receive a competitive salary based on your experience and ability to perform in role between $130-150k basic, 25 days annual leave (excluding public holidays), target led bonus scheme, 401k contribution, private health care, mental wellbeing support via our fantastic EAP, corporate discounts and salary sacrifice schemes.

We have a fantastic office in NY complete with a fully stocked fridge, catered lunches 2 times a week and snacks. We have a hybrid working culture allowing you flexibility to collaborate with colleagues in office 2-3 times a week.

Posted 2025-09-22

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