David Wollover

Experience

1. Senior Data Scientist

   SAIC

   Aug 2020 — Present · Northern, VA, US

   In a Multi-Cloud Environment provide variety of analysis-driven products from Cloud Services’ Consumption Cost and Usage Data. • Built multiple systems of Tableau dashboards with textbox-entry search capability enabled by Regular Expressions. • Example Workflow:(a) VBA: Disambiguate convoluted MS Excel tables;(b) RStudio: Data Munging such as creatin \"Tableau-friendly\" data;(c) Tableau Prep Builder: Average difficulty Data Engineering (Extract-Transform-Load);(d) Tableau Desktop: Create easily navigable multi-dashboard system. • Successful Experience with Prompt Engineering in ChatGPT to accelerate development of flawlessly operating software. • RStudio code deploying REGEX via stringR functions proven capable of unifying a body of text containing hundreds of different (html-esque’) tagging conventions. • RStudio JSON interpreters to munge JSON data into tidy tables. • Use AWS Simple Storage Service (S3) to directly pull data and use AWS CloudWatch to mine metrics. • Extensive use of Oracle SQL Developer (e.g, REGEX within SQL for fuzzy filtering and string transformations). • Developed basic Cloud Services Adoption Association Rules mining prototype (using RStudio arules package). • Extensive use of mainly Boolean-based data mining to pull relational metrics from collections of finished product. • Basic Text Processing in RStudio (e.g, TM package\") • Elementary Text Machine Learning (Classification problems) in Python SciKit Learn.

Education

• Pennsylvania State University

  Master of Science (M.Sc.)