Associate Director, Data Science Lead

About This Role

The Associate Director, Data Science Lead, will play a pivotal role in Biogen’s Data Science team, driving the development of advanced modeling solutions that inform strategic business decisions across Marketing, Sales, and Access. This role will be responsible for leading high-impact data science initiatives including marketing optimization, patient-level predictive analytics, machine learning-based personalization, and field force effectiveness strategies.

As a hands‑on contributor, you will guide and execute while collaborating with cross‑functional teams to ensure that data science outputs are actionable, accurate, scalable, and aligned with brand priorities. You’ll be a thought partner to commercial leadership, championing the use of data and AI to deliver measurable business value.

• Execute flawlessly the long‑term data science and AI vision, ensuring alignment with enterprise capability roadmaps, commercial priorities, and emerging AI/ML trends.
• Lead the end‑to‑end development, deployment, and scaling of data science solutions, including predictive models, clustering, segmentation, optimization, and advanced natural language processing (NLP) and large language models (LLMs), to address complex commercial challenges and extract insights from unstructured data.
• Act as a trusted partner to the insights and marketing teams, demonstrating rigor and knowledge in data science algorithms, while displaying agile ways of working, accountability and value.
• Being open to feedback from adopters on the quality of outputs and building corrective model fine tuning and performance continuously.
• Serve as the primary data science partner for U.S. commercial brand teams, translating business objectives into analytical frameworks that drive measurable impact across marketing, sales, and access strategies.
• Guide business stakeholders through insight interpretation and activation, ensuring outputs are integrated into workflows and decision‑making processes.
• Provide technical expertise and thought leadership on the development of analytical tools, reusable frameworks, proprietary data products, and service lines‑contributing directly where needed.
• Promote analytical rigor, responsible experimentation, and model governance best practices, serving as a champion of quality and innovation across the analytics organization.
• Collaborate with a high‑performing team of data scientists, that encourages learning and experimentation.
• Collaborate with IT to develop and co‑create the ML Ops environments and deliver productized solutions.
• Design and ope rationalise Next Best Action (NBA) strategies using machine learning to optimize field force effectiveness, drive personalised omnichannel engagement, and increase HCP engagement ROI.
• Develop and scale Patient 360 models and predictive targeting algorithms to support AI‑driven lead generation, enable high‑value patient outreach, and enhance commercial performance across key therapeutic areas.
• Guide measurement and ROI optimisation efforts through marketing/media mix modelling and budget allocation using data from APLD, Plan Trak, claims, and specialty pharmacy sources.
• Manage relationships with external analytics partners, ensuring alignment with internal data engineering, insights, IT, and compliance teams for scalable, secure solution delivery.

You are a data scientist with strong business instincts, a leadership presence, and a passion for solving ambiguous problems. You thrive at the intersection of analytics and action‑building machine learning pipelines that scale and deliver insights that drive strategic decisions. You’re not only a strong individual contributor but also an experienced team leader who enjoys guiding others with ideas, mentoring talent, and fostering collaborative problem solving.

• Minimum 7 years of hands‑on analytics or data science experience, including at least 4 years leading data science projects or teams.
• Strong command of statistical modelling supervised and unsupervised learning, A/B testing, and time‑series forecasting.
• Strong experience in marketing mix, portfolio optimisation, decision engine build…