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Customer Success Associate

InfoSum

London, England, United Kingdom Hybrid permanent

Posted: April 21, 2026

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Quick Summary

We are looking for a Customer Success Associate to represent and deliver outstanding customer service to InfoSum signed clients, with a focus on consulting on 1PD strategy, platform usage and partnerships.

Job Description

Department Overview:

The Client Services team includes customer success, support, and solutions engineering. Responsible for generating value for our customers by ensuring clients are using InfoSum to its full potential, have the necessary support and regularly feedback client use cases internally.

Sub Department overview:

Customer Success is responsible for understanding, representing and delivering outstanding customer service to InfoSum signed clients. This is achieved by consulting on 1PD strategy, platform usage and partnerships. The team relay core client requirements to the business and identify opportunities to collaborate across internal departments for renewals, platform challenges, upselling, case studies, legal queries to maintain service for clients.

Job Overview:

The Customer Success Associate is responsible for managing small and medium businesses alongside 1-3 more strategic clients, working with client engineering, product operations, and commercial teams to understand and implement a varied set of use cases. The CSM manages the day-to-day client interactions across a range of levels to ensure they receive the highest value from the InfoSum platform and are always engaged.

Core Responsibilities:

• 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:
The main skills needed to deliver the core responsibilities:

• 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

What are the key indicators of success in this role?

• Background in advertising technology
• Respond and escalate customer requests internally in a timely manner
• Successful implementation of new opportunities and customer use cases with existing customers
• Successfully retain customers and grow the portfolio’s overall revenue value
• Partner with product and commercial teams leads to successfully identify and execute new solutions to meet customer needs
• Familiarity using customer success tools and project management
• Develop a reputation among customers of being a trusted consultant on all things data collaboration strategy and technology


Benefits:
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

We also reward our teams with 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

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