Contact Information
Email: stevenjohn.angeli@gmail.com
Phone: (920) 251-9357
LinkedIn: linkedin.com/in/sjangeli
GitHub: github.com/sjangeli
Skills
Data Technologies: AWS, Spark, Snowflake, Databricks, DBT, Kafka, Docker, Splunk, DataDog, Terraform, GitHub Actions
Languages: Python, SQL, PySpark
Certifications
AWS Certified Solutions Architect - Associate (2020 & 2023)
AWS Certified AI Practitioner - Foundational (2025)
Experience
Capital One
Principal Associate | Data Engineering | March 2022 - Present
Senior Associate | Data Engineering
- Led a multi-million dollar data ecosystem transformation effort to deprecate legacy ETL.
- Created multithreaded Python utilities to retrieve and analyze 50,000+ S3 dataset’s metadata quickly.
- Developed SQL queries leveraging window functions to analyze Snowflake data and ETL pipelines.
- Built a Spark data validation utility to compare data from multiple large S3 datasets in an EMR cluster.
- Designed and built an automated data dashboard (Python, Google Sheets, SQL, Snowflake, S3) to illuminate the scope and status of migration tasks.
- Served as the lead engineer balancing various stakeholder perspectives, timelines, and capabilities.
Cognizant
Big Data Engineer | June 2020 - Oct 2021
- Led a team of 15 developers responsible for migrating thousands of production datasets.
- Refactored a Python ETL framework to be dual-compatible with legacy and modern systems.
- Created detailed documentation and led a technical support Slack channel and office hours.
- Developed access patterns for a Python SDK leveraging internal dataset management APIs.
- Leveraged AWS Lambda, S3, EC2, SQS, and SNS to support file ingestion from S3 to a client resource.
Carmen Schools of Science & Technology
Director | August 2011 - November 2019
- Charter school network leader (2,500 students) managing mission-critical initiatives, including school achievement data synthesis, analysis, and communication.
Education
Thinkful, Inc. - Data Science | May 2020
Marquette University - Master’s of Education, Educational Policy & Leadership | May 2013
University of Wisconsin - Madison - Bachelor’s of Science, Astronomy & Physics | May 2008
Additional Experience
Teach For America (TFA) - Milwaukee Corps Member, Diversity, Equity, and Inclusion Fellow
