Sr. Business Intelligence Engineer

Aishwarya Tiwari

Aishwarya translates complex data into analysis and data products for 3Si clients to use in their decision-making.

Aishwarya’s experience is in data analytics, business intelligence, and cutting-edge cloud technologies. She specializes in storage-speed optimization and aggregating complex, disjointed data using visualization tools such as Tableau and Power BI.

Before joining 3Si, Aishwarya worked for a Fortune 500 company, developing a robust data warehouse using the AWS stack and transforming raw data from multiple sources into useful business intelligence. Her accomplishments include developing a MicroStrategy tool that reduced operational load by 30 percent and a Tableau application that saved 390 employee hours per year.

Aishwarya holds a BS in Engineering, Electrical, and Electronics and an MS in Mathematics from the Birla Institute of Technology in Goa, India, as well as a graduate certificate in Public Policy from the Takshashila Institution in New Delhi, India.

Technical Skills

  • AWS Services
  • Erwin
  • ETL
  • Excel
  • MicroStrategy
  • Postgres
  • Power BI
  • Python
  • Snap Logic
  • SQL
  • SQL Server
  • Tableau
Director of Engineering, Principal

Jon Wren

Jon works with 3Si clients to understand their vision for their future, assess their current state of technology and, with his expertise in multiple platforms, identify a clear path to achieve their goals.

Jon—JW to his colleagues—is an expert at migrating data operations from on-premise to the Cloud, providing instant scalability, cost savings, and performance. He looks at a problem holistically so he can diagnose the root cause and apply an appropriate solution. Jon also educates 3Si clients on Cloud technologies, tailoring his approach to his technical or non-technical audience.

Over his 20-year career, Jon has built data solutions on just about every platform. These days, he spends most of his time in the Cloud, but he started his career on IBM Mainframes, creating handy solutions in MS Access/VBA and constructing on-premise MPP database solutions in Teradata and Vertica. Earlier in his career, Jon was a founding member of Cardlytics (CDLX), worked at Amazon and SEOMoz in Seattle, WA, and spent time in the financial services industry.

Jon holds a BA in Business Administration, Management Information Systems from Iowa State University.

Technical Skills

  • Ab Initio
  • Amazon Web Services
  • Anaconda
  • Azure
  • BigQuery
  • Cognos
  • Google Cloud
  • Hadoop
  • Hive
  • HTML/CSS
  • Informatica
  • Jupyter
  • Linux
  • MacOS
  • Microsoft Dynamics/Great Plains
  • Mongo
  • MySQL
  • Oracle
  • Pentaho
  • Postgres
  • Power BI
  • Python
  • R
  • Redshift
  • Salesforce
  • SAS
  • Shell
  • SQL
  • SQL Server
  • SSRS/SSIS/SSAS
  • Tableau
  • Teradata
  • VBA
  • Vertica
  • Windows
Senior Advisor

Jon Oakdale

Jon assesses our clients’ needs and constraints and proposes data systems strategies that are effective, accessible, and minimize burdens on the client and their organization.

For nearly 15 years, Jon has helped government, nonprofit, philanthropic, and national and international corporate clients solve data challenges. Jon’s recent projects include developing and implementing Community Assessment Tools using Tableau for the Utah Department of Health, Texas Education Agency, and Washington Department of Early Learning. Jon also developed reporting and analysis engines for the Washington Department of Early Learning and Washington Department of Children, Youth, and Families; planned implementation of a master data management hub at Washington Department of Early Learning; and built financial models for several nonprofit organizations to support long range planning.

Jon holds an MBA from the University of Washington and a BA in Economics and Computer Science from Willamette University.

Technical Skills

  • Access
  • C++
  • Data Analysis Expressions (DAX)
  • Excel
  • Integration Services (ETL)
  • Microsoft Reporting & Analysis Services
  • Multidimensional Expressions (MDX)
  • MySQL
  • PowerPivot/BI
  • SQL
  • SQL Server
  • T-SQL
  • Tableau (Desktop & Server)
  • VB
  • VBA
  • XML