David Halladin
Senior Data Engineer

David Halladin


David helps 3Si clients leverage data to develop analytical insights that inform decisions.

David brings to 3Si experience in data analytics, visualization, and the cloud. He specializes in building and managing data pipelines and developing consumable data products.

Prior to joining the 3Si team, David worked as a data scientist in the healthcare sector where he spearheaded database migration efforts, redesigned a data processing pipeline, and created a database interface that enabled non-technical staff to access and export Key Performance Indicator (KPI) data. David’s technical skillset also draws upon experiences from the agricultural and academic sectors where he used Python in automation projects and Matlab to quantify data. David’s work has been published in journals and presented at conferences to audiences of varying technical ability.

David earned his Ph.D. in Microbiology and Immunology from Stanford University and a B.S. in Microbiology from the University of Wisconsin.

Technical Skills

  • BigQuery
  • Google Cloud
  • Matlab
  • MS Access
  • Postgres
  • Python
  • Shell
  • SQL
  • SQL Server
  • Tableau