Media Effectiveness Expert - New York

Company: Numberly
Location: New York City
Posted on: February 17, 2026

Job Description:

Job Description Job Description Company Description Numberly is recognized as one of the world's leading data marketing specialists (from CRM to Data Collaboration, Retail Media and Insights / Measurement) with nearly 500 employees and 8 offices worldwide serving more than 500 blue-chip clients (L'Oréal, Moleskine, Campari, Colgate, Nestlé, HSBC). By putting technology to work for brands and consumers, Numberly is at the heart of business growth and everyone's desire for more responsible and relevant marketing. Numberly leverages the latest advances in data processing, analysis and activation, incorporating artificial intelligence technologies. This approach is part of a virtuous circle in which business competitiveness goes hand in hand with greater respect for privacy and data protection. Your role You will join a team of experts and consultants specializing in data-driven marketing strategy, customer insights, analytics and data collaboration. In this role, you will lead and coordinate client data collaboration projects, drawing on your expertise in media and data marketing while leveraging the multidisciplinary skill sets across Numberly teams. Localisation The role is located in Brooklyn. It could also be based in Montreal or Paris in the short term before being located in New York City in the mid-term. What you will do Contribute to measuring incrementality rather than simple attribution of digital media campaigns (from CTV to Search and Social) on multiple Clean Room environments (Retailer, Publisher, Social platforms). Oversee the delivery of media and retail media audiences, campaign measurement, and all client deliverables—such as consumer insights and campaign performance. Partner with a broad ecosystem of stakeholders (publishers, media agencies, creative agencies, technology partners, etc.) to deliver best-in-class data-driven campaigns. Facilitate client meetings and workshops to uncover strategic challenges and co-create innovative solutions that continuously improve media strategy, planning, and buying. Partner with clients to identify new opportunities to create value from their own data and that of their existing or potential partners (data collaboration, customer insights, etc.). Help clients solve complex data and marketing challenges by combining consulting methodologies (competitive analysis, benchmarking) with technical and data expertise (audits, analytics). Support the technical setup and execution of new use cases, including measurement frameworks, insight generation, and dashboarding. Contribute to building our collective knowledge base in data marketing and to expanding Numberly’s consulting offering. This role is a great fit if you Are passionate about turning data into actionable insights that drive business transformation. Have strong analytical skills and learn quickly in areas such as data collaboration, AI, and marketing. Bring strong project management skills: you’re rigorous, highly organized, and able to coordinate multiple stakeholders to deliver on time and at a high standard. Enjoy solving complex business problems. Are a great listener who can contextualize challenges and recommend tailored, relevant solutions. Can build trust and persuade both technical experts and senior executives. Are curious about both the technical and marketing aspects of solutions, ensuring operational impact goes beyond the project delivery. Welcome constructive feedback and enjoy being challenged by marketing experts. Are motivated by curiosity, continuous learning, and sharing knowledge with both colleagues and clients. Preferred qualifications: 2 to 4 years of experience in media planning, measurement, and full-funnel marketing. Masters’ degree. Based in the U.S. (current or within the near term). Native-level English proficiency with strong knowledge of the U.S. media and technology landscape. Strong analytical skills and data-driven mindset. Solid background in retail media, media planning and tracking, and data analysis/measurement within complex technical environments. Experience working across a diverse ecosystem of clients and partners, including agencies, retailers, and technology providers. Good organizational skills with the ability to manage and coordinate complex projects. Familiarity with data collaboration, data clean rooms, marketing mix modeling (MMM), and experimentation is a plus. Perks and benefits Medical, dental and vision insurance. 401(k). Paid holidays (9 days per year). Paid time off (15 days per year plus 1 additional day per year after 1 year of employment with a maximum accrual of 20 days per year). Flexible work arrangements, including remote working days depending on the needs of the position and the team.

Keywords: Numberly, Waterbury , Media Effectiveness Expert - New York, Executive , New York City, Connecticut