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Hello,

I'm Alexis

Full-Stack Data Scientist

Currently working at Takeda Pharmaceutical as Sr. Data Engineer & Data Scientist. Passionate in designing & developing scalable end-to-end solutions.

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About Me

About Me

I'm Alexis Roldan

A seasoned Full-Stack Data Scientist & Software Developer with a passion for leveraging Advance Analytics and Statistical Modeling to provide insightful data-driven solutions to complex questions.

My area of expertise includes designing, developing and maintaining End-to-End Data Science & Analytics solutions, Digital Twin models, Business Intelligence & Software applications, while my manufacturing background enable me to obtain the required process knowledge to understand, lead, interact and support cross-functional teams.

Additionally, I'm a certified Lean Six Sigma Green Belt, AGILE Champion, Databricks Champion, and Mulesoft Champion; experienced on Project Management, Agile, SCRUM and DMAIC Problem Solving methodologies with strong leadership and project management experience in biopharma industry.

  • 10+

    Years of
    Experience

  • 30+

    Solutions
    in Production

  • 9+

    Successful
    Projects Led
Link to Resume

Skills

Skills

Education & Skills

Here's my journey and technologies that I currently use.

  • 2025

    Optimizing Performance in Shiny - ShinyConf 2025

  • 2024

    Rhino Masterclass - ShinyConf 2024

  • 2023

    Developing & Testing Your Shiny Application - Open Source in Pharma

  • 2023

    ODSC AI Bootcamp - Open Data Science Conference

  • 2023

    Oxford Machine Learning Summer School - AI for Global Goals

  • 2022

    Building Production-Quality Shiny Applications - Open Source in Pharma

  • 2022

    API Development - Mulesoft

  • 2021

    PI System Asset & Visualization - OSIsoft

  • 2020

    Data Science Professional - HarvardX

  • 2020

    Statistical Learning, Inference & Modeling - HarvardX / Standford Online

  • 2012

    Computer Science - Cal State Northridge

  • R / Shiny Advance
  • Python / Dash Intermediate
  • Minitab / JMP Advance
  • SIMCA / OPLS Intermediate
  • AWS / Databricks / Git Intermediate
  • Qlik Sense / Power BI Advance
  • Tableau Intermediate
  • SQL Server / PostgreSQL Advance
  • Oracle Advance
  • .NET Advance
  • HMTL / CSS / Java Intermediate
  • Docker / Apache Spark Intermediate

  • Six Sigma Green Belt Intermediate
  • Project Management Intermediate
  • DMAIC / DIDOV2 Intermediate
  • Problem Solving Advance
  • SCRUM / Agile / MLOps Advance
  • Storytelling Advance
  • Critical Thinking Advance
  • Communication Advance

Work & Experience

Sr. Data Engineer & Data Scientist (Sr. Manager)

Full Time
Apr 2025 - Present

Support Los Angeles Digital Roadmap, AI/ML Development and Advance Analytics to support data-driven decisions.

I'm responsable for designing, building, and maintaining local data pipelines to ensure the reliable collection, aggregation, processing, and storage of critical business data. Develops innovative data-driven solutions and advanced machine learning models to support production workflows and site objectives. Collaborates across multiple local and global teams to analyze complex problems, optimize data architecture, and drive actionable insights that enhance operational efficiency.

Data Scientist III (Sr. Manager)

Full Time
Nov 2022 - Mar 2024

Focus on AGILE 4.0 Digital Workstream, AI/ML and cutting edge data analytics programs to accelerate Takeda's digital capabilities to support data driven decisions across all GMS sites.

Part of my responsabilities includes local and global execution and implementation of the GMS/GQ (Global Manufacturing Supply/Global Quality) big data and analytics strategy and initiatives; manage, and execute local data analytics initiatives and acts as the link between local and global GMSGQ; build, maintain & deploy data pipelines and business intelligence applications to support different business units across all GMS plasma sites.

Data Scientist II (Manager)

Full Time
Apr 2021 - Nov 2022

Build AI/ML and cutting edge data analytics programs to gain insight on different processes and accelerate Takeda's digital capabilities to support data driven decisions across all GMS sites.

My role includes designing A/B tests, developing & maintaining End-to-End ML Applications, supporting local and global advance analytics initiatives, as Los Angeles lead data scientist, developing & maintaining Business Intelligence & Software Applications, and performing process modeling (digital twin) to support data driven business decisions.

My Latest Projects

My Latest Projects

Take a look at my recent work.

Lucy - Personal AI Chatbot

R/Shiny

Lucy - Personal AI Chatbot

Interactive Shiny Chatbot powered by OpenAI's gtp-3.5-turbo model. This personal chatbot can store prompt history to increase response efficiency.

Link

{roldanpack}

R

{roldanpack}

Personal R package created to help with daily analytics & visualizations.

Repository

{RIOT} R/Shiny Image OCR App

R/Shiny/AWS

{RIOT} R/Shiny Image OCR App

Interactive application developed using R/Shiny designed to extract text from images for further analytics using OCR technology.

Link

Youtube Video Feed Dashboard

R/Shiny/AWS

Youtube Video Feed Dashboard

Personal Youtube Video Feed Dashboard to showcase latest videos from favorite Youtube channels using Youtube API, AWS and posit::connect.

Link

Deviations & Observation Analytics & Search Engine

R/Shiny/SQL/Python

Deviation & Observation Analytics & Search Engine

This End-to-End application uses Text Analytics and NLP to gain insights from deviations and observation's free text data and provide status-at-glance at local and global level to support data-driven decisions.

Linkedin

Youtube Recommendation Engine

Python

Youtube Recommendation Engine

This application enable the user to find valuable YouTube videos of their interest independent of YouTube's recommendation system.

Linkedin

Contact Me

Contact Me

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