William Bittner
Principal Software Engineer at Liberty Mutual Insurance
Pennsylvania, United States
Summary
👤
Senior🎓
Top SchoolWilliam Bittner is a Principal Software Engineer with 11 years of experience building full-stack web applications, currently driving technical delivery at Liberty Mutual. He combines practical expertise in JavaScript (Node, Express, Vue), Java backends, and SQL with a strong theoretical grounding from Penn State in discrete math and computation theory. William has a track record of operational ownership—serving as production POC and performance troubleshooter for critical apps at Lockheed Martin—and mentors teams while shipping maintainable systems. He experiments beyond the browser, exploring Electron and NativeScript to extend JavaScript to desktop and mobile platforms. His background as a Learning Assistant and beta tester reflects a thoughtful, user-focused approach to design and testing that complements his hands-on engineering.
11 years of coding experience
4 years of employment as a software developer
Bachelor of Science (BS), Computer Science, Bachelor of Science (BS), Computer Science at Penn State University
English
Github Skills (19)
forge8
fabric8
minecraft8
virus8
energy7
java6
spring5
visualization4
data-visualization3
addon3
patreon3
shortcuts3
active2
rewrite2
nodejs2
Programming languages (3)
Github contributions (5)
WBittner/OptimumValor
Jul 2016 - May 2018
Contributions:2 pushes, 1 branch in 1 year 10 months
WBittner/League-Workout-Counter
Jul 2015 - Mar 2017
Contributions:16 pushes, 1 branch in 1 year 8 months
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