Karl Schaefer
Senior Software Architect at Carnegie Learning
Pennsylvania, United States
Summary
👤
Senior🎓
Top SchoolKarl Schaefer is a Senior Software Architect with 15 years of experience designing APIs, data models, and rich user interfaces for education and enterprise products. He has risen through technical and leadership roles at Carnegie Learning—moving from UI engineer to Front End Architect and now Senior Software Architect—where he leads full-stack teams and shapes front-end frameworks and API design. Karl combines test-driven development and accessibility-first UI practices with deep Java/Swing roots, having pioneered SwingLabs components and later built responsive, ARIA-compliant web widgets. He has a track record of improving engineering culture through peer reviews, daily scrums, and mentoring, and he brings practical systems experience from high-availability deployments to custom tooling with Java3D and Hibernate. With an MS in Computer Science and an earlier humanities BA, he blends rigorous technical craftsmanship with clear communication and a knack for translating complex educational requirements into usable software.
15 years of coding experience
25 years of employment as a software developer
MS, Computer Science, MS, Computer Science at DePaul UniversityBA, Latin and English, BA, Latin and English at University of Notre Dame
Github Skills (99)
maven-plugin10
donut10
web-performance10
svg10
gradle-plugin10
javascript10
jackson10
web-developer10
angular10
cli10
typescript10
expression10
angularjs10
nodejs10
d3js10
Programming languages (6)
Github contributions (5)
CarnegieLearningWeb/mathquill
Mar 2015 - Sep 2020
Magic textboxes where you can type math as easily as writing!
Contributions:79 commits, 26 PRs, 67 pushes in 5 years 7 months
mathequationmathsmathematicsjavascript
CarnegieLearningWeb/angular-instantsearch
Jan 2024 - Feb 2025
⚡️Lightning-fast search for Angular apps, by Algolia
Contributions:11 reviews, 18 pushes, 3 branches in 1 year 1 month
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