Cheryl Schaefer
Senior Software Engineer II at True Link
St. Louis, Missouri, United States
Summary
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Senior🎓
Top SchoolCheryl Schaefer is a Senior Software Engineer II with 10 years of experience building reliable, observable systems for payments, fraud detection, and billing at fintech and high-volume payment platforms. She excels at pragmatic architecture and system migrations, having replaced batch pipelines with real-time event processing that cut vendor API calls by 90% and built a dispute management system that reduced staff time per case by 65%. Known for balancing speed, correctness, and long-term maintainability, she also drives measurable reliability gains—reducing critical query times by 85% and automating production issue resolution to shrink remediation from months to under 48 hours. A practiced mentor and teacher, she developed a company-wide SQL training adopted across teams and improves developer productivity by modernizing testing and CI. Based in St. Louis, she brings a systems-oriented, collaborative mindset informed by a background as an active musician and educator, which surfaces in thoughtful tradeoffs and clear communication.
10 years of coding experience
7 years of employment as a software developer
Master of Arts, Flute Performance, Master of Arts, Flute Performance at Western Illinois UniversityComputer Science, Computer Science at Southern Illinois University EdwardsvilleBachelor of Music, Flute Performance, Bachelor of Music, Flute Performance at Southeast Missouri State University
Github Skills (15)
isomorphic9
d3js9
svg8
charts7
react7
tableau7
visualization6
php6
canvas6
data-visualization4
latex1
markup-language1
tex1
markup1
lisp1
Programming languages (2)
Github contributions (5)
Fizziology/webdataconnector
Feb 2018 - Oct 2019
Contributions:4 PRs, 23 pushes, 5 branches in 1 year 8 months
carephptableau
cherylschaefer/magistry
Oct 2016 - Oct 2016
Contributions:28 pushes, 1 branch in 1 day
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