Tom R.
Data Engineer | Python | SQL | Azure & AWS | DBT | Snowflake | Databricks | Airflow | Data Analysis | Data Science
- Role
- Data Engineer at Mathematica
- Location
- Chicago, IL, US
- LinkedIn followers
- 500 followers
About Tom R.
He/Him/His My passion for social policy stems from my personal experience in…
Experience
Data Engineer
Dec 2022 — Present
Architect and maintain cloud-native Spark-based ETL pipelines in Databricks to process and transform over 4TB of Medicaid and Medicare claims data per quarter, supporting federal and state healthcare initiatives• Leading enterprise-wide shift away from manual cost run and budget projections systems to fully integrated Microsoft Fabric real-time dashboards that connect to Azure database systems and send data to project managers automatically• Led project-wide migration from SAS to Databricks, modernizing 170+ ETL modules to improve scalability, reduce compute costs, and increase development efficiency• Developed global Python and SQL utilities reused across 20+ developers, incorporating automation, quality checks, and cost-aware compute management• Created an ad-hoc Python API integration to pull national provider registry data, reducing ETL compute time by 4+ hours per run and cutting cloud costs by hundreds of thousands of dollars• Analyzed complex, large-scale healthcare datasets using Python, SQL, SAS, and R to inform healthcare policy research and enable evidence-based decision making• Designed reproducible tooling to automate QA checks and pipeline health monitoring, reducing risk in high-stakes government reporting workflows• Worked cross-functionally with analysts, engineers, and project managers using GitHub, Jira, Slack, and Webex, and advised senior leadership on cloud architecture tradeoffs across Databricks, Snowflake, and AWS• Translated technical processes into clear summaries for non-technical stakeholders, especially regarding cloud platform performance, costs, and security compliance (HIPAA/PHI/PII)
Education
DePaul University
Bachelor’s of Arts
2014 — 2019
CGE Jordan
US Accredited Courses - Intermediate Arabic I & II
2017 — 2017
Princeton University
Public Policy and International Affairs Junior Summer Institute Fellow
2017 — 2017
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