Senior Client Success Director, Analytics & Growth

twentysix; Greater London; Hybrid; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Hybrid by design

Brilliant benefits

Flexible by design

Job summary

Gain Theory is hiring a Senior Client Success Director in Greater London. You will lead strategic client relationships, drive data-driven insights, and partner with C-suite stakeholders to secure value and growth. The role requires deep marketing analytics expertise and leadership across enterprise portfolios.

You’ll be a trusted advisor, guiding projects, shaping client strategy, and building a high-performing Client Success team within a hybrid-work environment.

Qualifications

• 8+ years in client success, consulting, or marketing analytics with leadership exposure.
• Advanced expertise in Marketing Mix Modeling and econometrics.
• Proven ability to lead diverse Client Success teams and influence C-suite stakeholders.
• Strong strategic, analytical, and commercial mindset with enterprise oversight.

Responsibilities

• Lead senior client relationships, driving measurable outcomes and growth.
• Oversee projects across portfolios with focus on time, scope, and quality.
• Manage profitability through value realization and efficient processes.
• Mentor and develop Client Success teams and cross-functional partners.
• Communicate complex analytics simply to non-technical leaders.

Skills

Client relationship management

Data analytics

Leadership

Strategic thinking

Communication

Stakeholder management

Project management

Excel

PowerPoint

R

Python

Education

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

Tools

Excel

PowerPoint

R

Python

Job description

Gain Theory is hiring a Senior Client Success Director in Greater London. You will lead strategic client relationships, drive data-driven insights, and partner with C-suite stakeholders to secure value and growth. The role requires deep marketing analytics expertise and leadership across enterprise portfolios.

You’ll be a trusted advisor, guiding projects, shaping client strategy, and building a high-performing Client Success team within a hybrid-work environment.