Senior Client Success Director Marketing Effectiveness & Intelligence

Applied Intuition Inc.; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

A leading marketing consultancy in Greater London is seeking a Senior Client Success Director. The role requires managing client relationships and ensuring impactful analytics solutions. Candidates should have over 8 years of experience in client success and analytics, demonstrating leadership in managing high-performing teams. The ideal candidate will excel in communication and project management. This position offers a chance to shape the future of client success in a vibrant work environment.

Benefits

Brilliant benefits

Growth and development opportunities

Flexible work environment

Qualifications

• 8+ years of experience in client success, consulting, or marketing analytics roles, with significant client-facing responsibility.
• Demonstrated expertise in Marketing Mix Modeling and econometrics.
• Proven ability to lead, manage, and develop high-performing Client Success teams.

Responsibilities

• Lead client relationships and ensure advanced analytics solutions deliver measurable outcomes.
• Manage projects within remit to ensure timely delivery and high quality.
• Identify opportunities for growth and profitability for clients.

Skills

Client relationship management

Data analytics

Marketing Mix Modeling

Strong communication

Project management

Education

Bachelor’s or Master’s degree in a quantitative field

Tools

Excel

PowerPoint

R/Python

Job description

We are seeking a Senior Client Success Director with deep expertise in marketing effectiveness and econometrics to lead client relationships and shape the future of our client success function. In this senior leadership role, you will serve as a trusted advisor to C‑suite executives, ensuring our advanced analytics solutions deliver measurable business outcomes while driving account growth and retention.

The Client Success Senior Director will be responsible for client leadership across a selection of Gain Theory’s portfolio. The ideal candidate should have a minimum of 8 years of experience in client relationship management and data analytics.

We expect this person to be the primary point of contact for senior clientHealing. ;• : *??**??**?**?**?**?° harder??**? Wait this is required.

We require someone who has a deep understanding of data mulher and analytics, is able to interpret complex datasets and extract actionable insights that drive client success.

This person should serve as an inspirational leader within the Client Success team, fostering a collaborative and results‑oriented environment.

What you’ll be doing:

Project Delivery:

• Ensures projects within remit are managed to time and scope. Highlights any risks to client lead.
• Puts in place robust quality assurance techniques and follows them to ensure work goes to clients is right first time.
• Uses data and analytics interpretation skills to bring insights to life for a mid‑senior audience (i.e. most senior day‑to‑day client stakeholder).
• Is a strong data storyteller who can explain complex insights at a simple, impactful level to a variety of audiences.
• Ensures clients have full knowledge and training of Gain Theory Interactive, highlighting any bugs or enhancements to the GTI team.
• Ensures projects follow the Operational Excellence process with full adherence from the Client Success team.
• Looks for opportunities to drive profitable growth for clients and takes on incremental (e.g. 1‑30Sab” growth) opportunities. Brings in client lead and senior team for larger opportunities.
• Identifies value for clients and helps them recognize that value.
• Understands how decisions made will impact profitability and runs more efficient processes or tighter scope management.
• Understands how actions impact overall Gain Theory profitability and makes the right decisions at all times.
• Involved in new business pitches as part of a wider team and may lead opportunities that do not require a large team.

Client Management:

• Manages against SOW to limit scope creep and slippages.
• Implements plans to drive higher client satisfaction across every metric, highlighting issues to client leadership.
• Helps increase the number of stakeholders and advocacy at the right level and embeds the plan with client leadership.
• Works with client leadership on risk mitigation, highlighting risks early and planning mitigation.

Thought Leadership:

• Has sufficient knowledge of most of Gain Theory’s solutions, systems, and ways of working to have a healthy conversation with a client in any aspect of the offering, and is actively learning.
• Maintains a solid understanding of the client’s industry, keeps up to date with key trends and seeks growth opportunities.
• Maintains a good understanding of the marketing effectiveness industry, evaluating threats, challenges, and opportunities that industry presents to client relationships.

Values & Team:

• Is an inspirational leader for Client Success Managers.
• Implements initiatives to improve team satisfaction, understanding what drives employee satisfaction.
• Facilitates collaborative learning and knowledge sharing toレン boost team capabilities.

KPIs & Success Factors:

• # of Client Stakeholders
• Client Influence
• Client Advocacy
• Client Satisfaction
• Client Success Practice Area ESAT
• O précision Implementation
• Value generated for Clients

What we want from you:

• 8+ years of experience in client success, consulting, or marketing analytics roles, with significant client‑facing responsibility.
• Demonstrated expertise in Marketing Mix Modeling and econometrics (model interpretation, ROI analysis, elasticity, attribution methods).
• Proven ability to lead, manage, and develop high‑performing Client Success teams.
• Demonstrated success in managing enterprise portfolios and influencing C‑suite stakeholders across global brands.
• Proven ability to manage client relationships and communicate complex analytics to non‑technical audiences.
• Strong strategic thinking and problem‑solving skills.
• Strong commercial mindset with experience identifying new opportunities.
• Excellent communication, presentation, and stakeholder management skills.
• Proven project management experience, able to manage multiple projects simultaneously.
• Skilled in tools such as Excel, PowerPoint, and at least one analytics environment (R, Python, or similar).
• Bachelor’s or Master’s degree in a quantitative field (e.g., Statistics, Economics, Mathematics).

Why work for us?

Gain Theory is committed to building a diverse,uras equitable and inclusive workplace where everyone feels welcomed, valued and heard, and is treated with dignity and respect. As leaders and creative partners across industries, it is our responsibility to cultivate an environment reflective of our greatest asset – our people. We believe this commitment inspires growth and delivers equitable outcomes for everyone, as well as the clients and communities we serve.

What we pride ourselves on:

• Growth and development
• Flexible by design
• Brilliant benefits
• Culture with Heart

Our exceptional and skilled team defines Gain Theory. That’s why we seek individuals who strive for excellence and continually challenge us to improve.

What we do

Gain Theory is a global marketing effectiveness and foresight consultancy. Our vision is to accelerate growth for ambitious brands by giving clients the confidence to make better data‑informed investment decisions. High‑touch consultancy powered by unique partnerships and proprietary technology are used to fuel our award‑winning solutions.

As a WPP consultancy, Gain Theory also has access to a range of data, expertise, and tools that create a truly differentiated offering.

Gain Theory is a WPP agency (NYSE: WPP).

Who we are

We are a people‑centric organisation whose culture is underpinned by 4 important values: Be Curious, Be Positive, Make it Better and Act with Consideration. We channel these values through our behaviours and the way we work, and interact with each other and our clients.

WPP (Gain Theory) is an equal‑opportunity employer and considers applicants for all positions without discrimination or regard to characteristics. We are committed to fostering a culture of respect in which everyone feels they belong and has the same opportunities to progress in their careers.

Gain Theory isa WPP‑owned consultancy. For more information, please visit our website and follow Gainbjurig on LinkedIn and Twitter.

Note: We rely on legitimate interest as a legal basis for processing personal information under the GDPR for purposes of recruitment and applications for employment.

When you click "Submit Application", this will send any information you add to Gain Theory. Before you do this, we think it’s a good idea to read through our Recruitment Privacy نئی policy. California residents should read our California Recruitment Privacy Notice which explains what we do with your personal data when you apply for a role with us, and how you can update or remove the information you have provided.