Mark Ma.
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Data scientist · Product ownership

CVS Health

Data science and product delivery at CVS Health, a US healthcare and pharmacy company: AI-assisted business analysis, richer customer messaging, and campaign measurement.

Data Scientist / Apr 2024–Nov 2025

Building within real constraints

At CVS Health, my work connected data science with product delivery. It involved translating business needs into working prototypes and coordinating across teams to bring new capabilities into an established organization.

01 / Consumer Insight Hub

Led a zero-to-one AI analytics prototype for ad hoc business questions and automated insights. As the primary individual contributor and product owner, I worked through discovery, feature definition, implementation, and iteration using LangChain and LlamaIndex.

02 / A new RCS communication channel

Drove the first RCS channel launch end to end, spanning strategy, pilots, and analytics. RCS is a mobile messaging format that supports richer, more interactive customer communications than standard text messages. Delivery required coordination with external SaaS and telecom partners, Google, and internal legal and compliance teams.

03 / Measurement that supports decisions

Developed a campaign measurement framework at the individual-product (SKU) level to connect customer communications with retail outcomes and make campaign performance easier to evaluate.

Earlier at CVS

During my 2023 data science internship, I worked on prescription refill modeling with XGBoost and LSTM, alongside causal experimentation.

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