Kevin Jantzer
Senior Software Engineer at Blackstone Audio, Inc.
Talent, Oregon, United States
Summary
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Rockstar🎓
Top SchoolKevin Jantzer is a senior software engineer with 13 years building production web and desktop applications, currently designing and implementing in-house ERP systems at Blackstone Audio using modern web components, Electron, Node.js, Docker, and CI/CD. He combines deep front-end expertise (lit-element, lit-html, PWAs) with backend and ops know-how (MySQL, Redis, webpack) to deliver user-focused, maintainable systems. An active open-source contributor, Kevin enhanced FolioReaderKit to add SMIL parsing and media-overlay audio synchronization for iOS ePub playback, reflecting a practical interest in accessibility and multimedia. Based in Talent, Oregon, he pairs his engineering work with a long-running side career in photography and web design, regularly producing media and maintaining digital presence for Steens Mountain Running Camp. This blend of hands-on engineering, multimedia tooling, and creative practice gives him a pragmatic, user-centric approach to software problems.
13 years of coding experience
11 years of employment as a software developer
Bachelor, Business, Bachelor, Business at Southern Oregon UniversityHigh School, High School at Phoenix High School
Stackoverflow
9,363reputation
884kreached
200answers
5questions
image
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Github Skills (18)
epub10
ios10
image10
css10
html10
swift10
uiwebview9
javascript9
jquery9
accessibility8
slickjs6
nodejs6
vue6
backbonejs6
foreach6
Programming languages (9)
Github contributions (5)
FolioReader/FolioReaderKit
Dec 2015 - Aug 2016
📚 A Swift ePub reader and parser framework for iOS.
Role in this project:
iOS Mobile Developer
iOS Mobile DeveloperContributions:54 commits, 16 PRs, 4 pushes in 7 months
Contributions summary:Kevin primarily focused on enhancing the FolioReaderKit for iOS. Their contributions include fixing bugs related to navigation and indentation, and integrating media overlay support for audio synchronization within ePub files. They added the functionality to parse SMIL files, which contain information about audio playback, and implemented controls for playback rate. The user also made improvements to the user interface and added an in-app dictionary for enhanced user experience.
epub-readercustom-fontshighlightswiftios
kjantzer/backbone-dropdown
Jan 2013 - Jul 2018
Contributions:32 commits, 13 pushes in 5 years 7 months
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