John Mangel
Staff Software Engineer at InPractice AI
Santa Barbara, California, United States
Summary
👤
Senior🎓
Top SchoolJohn Mangel is a Senior Software Engineer with 11 years of experience building customer-focused full‑stack web applications, currently working on medical record review software in Santa Barbara. He combines hands-on Ruby on Rails and React expertise with a product-minded approach, having led teams at AppFolio to automate call-center workflows and build high-throughput pricing tools that processed tens of thousands of updates. As a former tech lead, he emphasizes mentorship and trust-building, routinely training interns and new engineers while driving iterative, user-centered solutions. His freelance work delivered education and nonprofit tools used by hundreds of educators, showing an attention to usability and real-world impact beyond core product teams. Outside engineering he composes and performs music and experiments with music education technology, a creative thread that informs his tinkering and UX sensibilities.
11 years of coding experience
6 years of employment as a software developer
Elisabeth-Langgässer-Gymansium, Alzey, GermanyBachelor of Science (B.S.) Computer Science, Bachelor of Science (B.S.) Computer Science at UC Santa BarbaraHigh School, High School at Ponderosa High School
German, Spanish, Portuguese
Stackoverflow
11reputation
8kreached
2answers
0questions
Github Skills (59)
kotlin10
react-component10
mobile-application10
datagrid10
habits10
spotify10
react10
dotnet9
java9
csharp9
android9
dotnet-core8
portal8
fsharp8
bootstrap7
Programming languages (7)
Github contributions (5)
jmangel/SongScaler
Aug 2020 - Nov 2021
An example app built on Ruby on Rails 6.0 + React.js 16.13 + TypeScript 3.9 + Docker Compose
Contributions:2 PRs, 221 pushes, 41 branches in 1 year 3 months
ruby-on-railsreactrailsdockerruby
jmangel/jmangel.github.io
Jan 2016 - Jun 2021
Contributions:28 pushes, 2 branches in 5 years 6 months
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