Customer Success Associate

InfoSum

Customer Success Associate for small and medium businesses at InfoSum. Ensuring clients utilize the InfoSum platform effectively while managing strategic relationships and driving value.

Posted 4/21/2026full-timeLondon • 🇬🇧 United KingdomJuniorMid-LevelWebsite

About the role

Key responsibilities & impact

Independently lead day-to-day interactions
Act as the client’s go-to advocate and navigate internal processes at InfoSum and the client to provide a high level of customized service for the client
Build the client’s ability to operate the InfoSum platform for more complex use cases
Track performance and success of client’s data collaboration strategy to ensure InfoSum is driving towards the best possible outcome for the client / their partners
Develop a perspective on the viable use cases of InfoSum for each client, seek alignment from the client with support of manager to achieve leadership buy-in, and develop a plan for implementation of new use cases
Initiate and lead discussions regarding renewal of contracts, with support from manager to establish appropriate commercials and achieve client senior leadership buy-in
Align on success metrics with the client and build a shared plan to address barriers to growth
Run a reliable and organized account process that keeps InfoSum on top of deadlines and capable of seamlessly introducing new revenue growth initiatives
Additional responsibilities as and when required by the business

Requirements

What you’ll need

Growing understanding of how data and identity is activated in the digital media ecosystem
Clear written and oral communicator with emphasis on precision
Demonstrable track record of successfully growing revenue within complex partnerships
Ability to build and cultivate new relationships with potential and existing partners within all parts of an organization
An organized self-starter that can diversify their skill set to meet business priorities.
Excellent interpersonal and customer-facing skills
A high level of curiosity and willingness to understand complex solutions designed to service customer needs
Experience presenting and managing communications with senior leadership at brands, agencies and publishers
Interest in and ability to represent and advocate for InfoSum’s core philosophy of privacy by default in your day to day interactions with clients

Benefits

Comp & perks

A competitive salary based on your experience and ability to perform in role
25 days annual leave (excluding bank holidays) + a day off for your birthday + 2 Volunteering days
Private medical insurance
Life assurance - 4x your base salary
Fantastic corporate discounts and mental wellbeing support, including a top of line EAP.
Salary sacrifice schemes
Enhanced Maternity, Adoption & Share Parental Leave
Monthly socials, 4pm finishes on a Friday & 3pm Fridays finishes during the summer months of June, July and August, 3 extra days off during the Christmas holidays and a culture built on recognition, collaboration and success

ATS Keywords

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Applicant Tracking System Keywords

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Soft Skills

clear written communicationoral communicationinterpersonal skillscustomer-facing skillsorganizational skillsself-starterrelationship buildingcuriositypresentation skillsadvocacy