John Grepps
Data Integration Developer
Cockeysville, Maryland, United States
Summary
👤
Senior🎓
Top SchoolJohn Grepps is a data integration developer with 11 years of experience building robust ETL pipelines and modernizing large-scale financial and operational systems, currently contributing to decision-support and data virtualization initiatives at Johns Hopkins APL. He has a strong track record at T. Rowe Price leading complex data migrations, statement modernization, and customer-record consolidation for hundreds of thousands of accounts and millions of transactions. Skilled in SQL, data profiling, production support, and translating business requirements into reliable data solutions, he is recognized as an SME for individual investor customer data. Comfortable across the full lifecycle from help desk and operations to architecture and delivery, he combines deep domain knowledge of financial operations with practical hands-on troubleshooting. Based in Cockeysville, MD, he brings a pragmatic focus on retiring legacy systems while enabling broader data access and analytics capabilities.
11 years of coding experience
11 years of employment as a software developer
UMBC
Github Skills (135)
bug-tracker10
django10
mern10
jira10
project-planning10
project-management9
music9
postgresql9
material39
python9
internet-radio9
backend9
redis9
vite9
docker9
Programming languages (12)
Github contributions (5)
shadowjig/StopLight_SmartApp
Feb 2018 - Mar 2018
Contributions:17 pushes, 1 branch in 4 days
shadowjig/ponos
May 2015 - May 2015
Contributions:5 pushes, 7 branches in 1 day
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