Staff Data Scientist, Marketing

WHY HARVEY At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come. This is a rare chance to help build a generational company at a true inflection point. With 1500+ customers in 60+ countries, strong product-market fit, and world-class investor support, we’re scaling fast and defining a new category in real time. The work is ambitious, the bar is high, and the opportunity for growth — personal, professional, and financial — is unmatched. Our team moves fast, takes ownership, and is deeply committed to the mission — operating with intensity, staying close to our customers, and pushing each other for excellence. We live by three values: Decisiveness, Simplicity, and Job's Not Finished. We act quickly on clear judgment over perfect information, we believe simplicity is what scales, and we're never satisfied with where we are. If you want to do the best work of your career alongside people who share that drive, we'd love to build with you. At Harvey, the future of professional services is being written today — and we’re just getting started. ROLE OVERVIEW We’re hiring a Marketing Data Scientist to partner closely with Harvey’s Marketing organization and build our marketing data science function from the ground up. In this role, you’ll serve as a trusted analytical partner to Marketing, GTM, and Finance - defining how we measure marketing success, understanding what drives channel and campaign performance, and informing where and how we invest to accelerate growth. As one of the earliest Marketing data science hires, you’ll own the development of core Marketing metrics, scalable dashboards, and analytical frameworks that enable data-driven decision-making across the business. WHAT YOU’LL DO - Embed deeply with the Marketing organization as a trusted partner, identifying opportunities to improve performance and drive growth. - Define, track, and evolve core metrics across marketing and business functions, building scalable dashboards and reporting frameworks that enable data-driven decision-making. - Design, implement, and evaluate models (multi-touch attribution, marketing mix modeling, incrementality) for comprehensive Marketing Channel and Campaign performance and contribution. - Apply statistical and machine learning techniques to model user behavior, forecast trends, and identify opportunities for growth and optimization. - Translate complex analyses into compelling stories, delivering clear recommendations to cross-functional partners and executives. - Partner with Marketing, RevOps and GTM System, to co-develop data infrastructure, ensuring robust pipelines, reliable data sources, and scalable systems that power analytics and modeling. - Lead cross-functional analytics initiatives that synthesize competitive dynamics, customer feedback, and market trends into actionable opportunities for the business. - Champion a data-informed culture by establishing best practices, mentoring peers, and shaping the strategic role of data science at Harvey. WHAT YOU HAVE - 6+ years of experience in quantitative roles operating in highly ambiguous environments, ideally as an early data scientist or Marketing analyst within a hyper-growth product company or research organization - Expertise in SQL, with extensive experience extracting large datasets and designing ETL workflows - Expertise working with Salesforce, Marketo and Ads spent data - Strong experience with modern data stack, such as DBT, Looker and Omni - Proficiency in quantitative programming languages, such as Python and R - Experience defining, implementing, and operationalizing Marketing campaign- and channel-level metrics from the ground up - Strong communication skills, with the ability to effectively partner with leaders across Marketing, GTM and Finance - Strategic mindset capable of generating i