Director, Client Service - MarSci

Kantar • New York, NY

5d • $120,200 - $140,000 • Hybrid

About The Position

We are seeking a highly motivated Director of Marketing Science to support our Media Team’s analytics and measurement function. In this role, you will partner closely with senior leadership to bring cross-channel media measurement strategy to life through execution, account leadership, and actionable insights. You will help design and deliver cross-channel measurement solutions -encompassing digital, social, search, linear TV, streaming, and more - leveraging methodologies such as multi-touch attribution, test-and-learn experimentation, and media effectiveness measurement. You will play a critical role in translating advanced analytics into clear recommendations that influence media investment decisions and improve campaign performance.

Requirements

• 8–12 years of experience in marketing science, marketing analytics, or media measurement (agency or brand-side)
• Strong working knowledge of cross-channel media measurement, including attribution, experimentation, and ROI analysis
• Familiarity with Marketing Mix Modeling concepts and how different measurement approaches complement one another
• Experience supporting data-driven media planning and optimization across digital and/or traditional channels
• Strong analytical skills, including experience with quantitative analysis and data interpretation
• Ability to translate data into clear, actionable insights for business and client stakeholders
• Collaborative, team-oriented mindset with the ability to influence without direct authority
• Bachelor's degree in a relevant field (e.g., Statistics, Economics, Marketing, Business); advanced degree a plus

Responsibilities

• Lead the execution of cross-channel media measurement plans, ensuring alignment with broader strategy and business objectives
• Translate measurement frameworks into practical, client-ready outputs (analyses, dashboards, presentations)
• Support campaign and always-on programs with ongoing performance analysis and optimization recommendations
• Support the application of multi-touch attribution methodologies to quantify channel contribution and inform media investment decisions
• Partner with Analytics stakeholders to ensure outputs are effectively integrated into planning and optimization workflows
• Maintain a strong working understanding of Marketing Mix Modeling (MMM) methodologies, including how LIFT/LIFT+ solutions complement MMM and broader ROI measurement tools, and help inform opportunities for future integration or enhancement
• Design and execute test-and-learn initiatives, including A/B tests, lift studies, and incrementality analyses
• Ensure strong experimental design and interpretation of results to provide clear, actionable recommendations
• Translate complex analytical outputs into clear, concise insights and recommendations for internal and client stakeholders
• Develop presentations and materials that connect measurement outcomes to business impact and media and creative optimization opportunities
• Work closely with media strategy, activation, analytics, and client teams to ensure measurement is embedded in planning and decision-making
• Act as a day-to-day marketing science lead on key accounts, ensuring deliverables are timely, accurate, and impactful
• Provide informal mentorship and coaching to junior team members as a subject matter resource
• Contribute to building team capabilities through knowledge sharing and best practice development
• Take direction from senior leadership and proactively identify opportunities to improve execution, workflows, and outputs

Benefits

• Medical plans with comprehensive, affordable coverage for a range of health services
• Health Savings Account/FSA
• Dental, Vision and benefits to cover unique healthcare needs
• Wellness Program
• 401k with match
• Tuition Reimbursement
• Commuter benefits
• Unlimited PTO

What This Job Offers

• Job Type: Full-time
• Career Level: Director