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Aaron sifuentes

@aaronsifuentes4

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Senior SAS/R programmer-analyst specializing in healthcare RWE, survival analysis, and reproducible analytics.

United States

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What I'm looking for

I seek roles applying R/SAS analytics to real-world healthcare data, with collaborative teams, reproducible workflows, and opportunities to influence HEOR/RWE studies.

I am a detail-oriented Senior Programmer/Analyst with over 11 years applying data science and analytics to healthcare and real-world data (RWD/RWE). I build reproducible R and SAS pipelines, develop R Shiny dashboards, and apply epidemiologic and biostatistical methods—including survival analysis and GLMs—to large claims and EHR datasets to support HEOR and evidence-generation efforts.

I collaborate across multidisciplinary teams to clarify study requirements, deliver high-quality documented results under tight deadlines, and maintain data provenance and audit-ready documentation. My work has included automating claims analyses with SAS macros, developing data quality and validation pipelines, and communicating complex analytic findings clearly to technical and non-technical stakeholders.

Experience

Work history, roles, and key accomplishments

Senior Programmer/Analyst

U.S. Bank

Aug 2022 - Nov 2025 (3 years 3 months)

Led extraction and analytics of claims and EHR datasets, built R Shiny dashboards and SAS macros to automate claims-based analyses, and applied survival and GLM methods to support RWE studies under tight timelines.

SAS/R Programmer/Analyst

Johnson & Johnson

Mar 2020 - Aug 2022 (2 years 5 months)

Executed RWD/RWE analytics using MarketScan, Optum and EHR datasets, developed automated data quality pipelines, and performed survival and longitudinal analyses to inform HEOR and epidemiology studies.

Senior Health Data Analyst

Macy's

May 2018 - Mar 2020 (1 year 10 months)

Applied statistical modeling to claims and EHR data, built reusable R scripts and Shiny apps for visualization, and integrated large datasets with SQL and SAS to improve longitudinal analysis efficiency.

Data Analyst

Accenture

Nov 2014 - May 2018 (3 years 6 months)

Developed R and SAS pipelines for claims and EHR integration, conducted exploratory analyses and built reproducible workflows to support healthcare analytics client engagements.