Freelance Senior Data Strategist

About the Role

Key Responsibilities

• Architect holistic data strategies that connect 1st-, 2nd-, and 3rd-party data sources to inform targeting, content, and media strategies.
• Translate marketing goals into measurable KPIs, audience strategies, and data-informed messaging frameworks.
• Develop, refine, and implement robust DCO strategies that leverage real-time data signals to deliver relevant creative variants to target audiences.
• Partner with internal and external stakeholders to design end-to-end data ecosystems supporting scalable personalization, decisioning, and performance measurement.
• Assess and clean incoming client data for accuracy, consistency, and completeness.
• Normalize disparate data sources (e.g., CRM exports, pixel data, media platform data) to enable unified campaign measurement and insights.
• Develop schemas and mapping logic to structure data for dashboards, reporting tools, and analytics workflows.
• Collaborate with client-side IT/BI teams and internal analytics partners to ensure data pipelines are functional and reliable.
• Support ETL workflows using SQL, Python, and BI tools like Looker or Tableau.
• Develop and validate audience segmentation strategies using behavioral, contextual, and demographic inputs.
• Convert raw data and audience signals into actionable marketing opportunities, informing messaging, channel selection, and personalization.
• Create data-informed journey maps and content frameworks for full-funnel creative and media efforts.
• Lead development of structured testing roadmaps including AB tests, multivariate tests, and personalization experiments.
• Work with analytics teams to interpret campaign results, identify drivers of performance, and extract actionable insights.
• Establish feedback loops and learning agendas to improve creative, media, and targeting effectiveness.
• Monitor and analyze performance data using dashboards, attribution models, and platform analytics (e.g., DV360, Meta, Trade Desk).
• Identify optimization opportunities and translate insights into strategic pivots.
• Deliver insights and performance narratives to clients and internal teams to support decision-making.
• Serve as a strategic bridge across creative, media, account, and analytics teams to ensure insights are integrated into campaign development.
• Educate teams and clients on data strategy best practices, tools, and trends in marketing analytics and personalization.
• Contribute to thought leadership through case studies, presentations, and whitepapers showcasing data strategy applications.

Requirements

• Bachelor's degree in Marketing, Data Analytics, Information Systems, or a related field.
• 5+ years of experience in a strategic or data-driven marketing role, ideally within a digital agency, consultancy, or in-house performance marketing team.
• Proficient in SQL, Python, and ETL workflows.
• Familiarity with APIs, structured data modeling, and cloud data environments is a plus.
• Experience with BI and visualization tools such as Looker, Tableau, Power BI.
• Understanding of ad platforms (DV360, Meta, Amazon DSP), DCO tools (FlashTalking, Innovid), CDPs, and CRM systems.
• Strong ability to translate unstructured or incomplete data into structured, actionable insights.
• Ability to design audience frameworks, test plans, and measurement strategies aligned with business goals.
• Exceptional communication and storytelling skills—able to simplify complexity and influence stakeholders.
• Skilled at navigating matrixed environments and balancing strategy with execution.
• A collaborative mindset with clarity, proactivity, and outcome-oriented thinking.

Nice to Have

• Experience with APIs, structured data modeling, and cloud data environments.
• Knowledge of ad platforms such as DV360, Meta, Amazon DSP.
• Experience with DCO tools like FlashTalking and Innovid.
• Familiarity with CDPs and CRM systems.

Qualifications

• Bachelor's degree in Marketing, Data Analytics, Information Systems, or a related field.
• 5+ years of experience in a strategic or data-driven marketing role.

Benefits & Perks

• Robust and inclusive benefit programs including medical coverage, dental, vision, disability, 401K, parental and family care leave, family forming assistance, tuition reimbursement, and flexible time off.