Marketing Science Senior Director

About the role

• Agency: Critical Mass
• Job Function: Data and Analytics
• Job Subfunction: Data Science and Analytics

About the role

As a Critical Mass, Sr Director, Marketing Science you will lead analytics across multiple projects within a large media account, helping teams turn paid marketing, website, customer, and performance data into a clear business direction. This is a senior leadership role for someone who can set the measurement vision, guide teams, advise senior clients, and connect analytics to real marketing decisions.

You will oversee media performance, website analytics, measurement strategy, reporting, testing, and data activation. You will also lead analytics analysts, helping them grow their skills, strengthen their client presence, and transform raw data into insights and implications for marketing execution.

You will

• Serve as the analytical counterpart to Media leadership, jointly shaping investment strategy, measurement approaches, optimization priorities, and client recommendations.
• Set the analytics vision and roadmap across media performance, website analytics, measurement, and activation across several client strategies.
• Lead senior client conversations around performance trends, measurement strategy, optimization opportunities, and business impact.
• Partner with media, strategy, creative, technology, experience, account, and project management teams to deliver integrated, data-informed solutions.
• Oversee measurement frameworks, KPIs, dashboards, testing plans, reporting approaches, and performance narratives.
• Connect media performance, website behavior, customer journeys, and business outcomes into a clear view of marketing effectiveness.
• Translate complex analyses into executive-level narratives that influence client investment decisions.
• Identify opportunities to improve campaign performance, digital experiences, personalization, testing, and customer engagement.
• Lead analytics analysts, including staffing, prioritization, coaching, quality control, career development, and performance management.
• Establish standards for analytical rigor, data quality, reporting consistency, and executive-ready deliverables.
• Manage competing priorities across projects while keeping teams focused, organized, and clear on what matters most.
• Build strong relationships with senior clients, internal discipline leads, and cross-agency partners.
• Stay current on marketing analytics, media measurement, privacy, first-party data, AI, automation, and emerging measurement approaches.

You have

• 10+ years of experience in marketing, analytics, media, digital, consulting, or related field.
• 5+ years of experience leading analytics or measurement teams, including direct people management and career development.
• Experience overseeing analytics across multiple accounts, brands, business units, or stakeholder groups.
• Deep understanding of paid media planning, buying, optimization, and measurement, with the ability to connect media investments to business outcomes across channels.
• A strong understanding of how paid media, digital experiences, customer behavior, and business outcomes connect.
• Experience advising senior clients and executive stakeholders, including presenting recommendations and influencing decisions.
• The ability to turn ambiguous business questions into structured analytical approaches and practical next steps.
• Strong leadership skills, including coaching managers, developing analysts, setting priorities, and creating clarity for teams.
• Excellent communication and storytelling skills, especially with non-technical audiences.
• Experience collaborating across media, strategy, creative, technology, UX, account, and project management teams.
• Experience designing and evaluating attribution methodologies, incrementality studies, brand lift measurement, and testing frameworks.
• Comfortable evaluating statistical significance, confidence intervals, sample size limitations, and when results should be considered directional versus actionable.
• Strong judgment around data quality, measurement limitations, and when a number is meaningful versus merely convincing.
• Familiarity with analytics, media, visualization, testing, and data platforms such as Adobe Analytics, Google Analytics, Tableau, Power BI, media reporting tools (such as DV360, CM360, Meta, Google Ads, LinkedIn, Reddit, Lucid, IAS, DoubleVerify, and others), tag management systems, and experimentation platforms.
• Comfortable designing media tests in partnership with the Media Team, including but not limited to: A/B testing, geo tests, incrementality studies, lift studies, and vendor evaluations.
• Comfort working in a fast-moving agency environment where priorities shift and the answer is rarely as simple as “the dashboard says so.”
• Ability to influence media planning through audience insights, measurement design, forecasting, and performance projections.
• A strong point of view on the future of marketing measurement, including privacy changes, first-party data, automation, AI-enabled analysis, and personalization.
• Curiosity, collaboration, humility, and a practical sense of humor.
• This position requires candidates to obtain a Level 2 Security Clearance in accordance with U.S. government regulations. As such, only U.S. citizens or permanent residents (Green Card holders) are eligible to apply.

Nice-to-Haves

• Experience with military and or military clients
• Recruitment/CRM analytics knowledge

Salary Range: $150,000 - $165,000

Omnicom’s policy requires employees to work in the office for a minimum of three days a week, unless additional in-office days are directed by their agency or manager. Our objective is to increase this requirement over time, and many of our agencies as well as Omnicom’s corporate group already require five days of in-office attendance.

Omnicom is committed to hiring and developing exceptional talent. We agree that talent is uniquely distributed, and we’re focused on developing inclusive teams that can bring the best solutions to everything we do. We strongly believe that celebrating what makes us different makes us better together. Join us—we look forward to getting to know you. We will process your personal data in accordance with our Recruitment Privacy Notice.