J Hartzog
Software Engineer at Meta
Denver, Colorado, United States
Summary
👤
Senior🎓
Top SchoolJ Hartzog is a software engineer with 10 years of experience who pivots effortlessly between consumer mobile apps and immersive VR, currently building panel experiences at Meta. He previously led React Native initiatives as a tech lead, architected multi-platform coaching and LMS products, and shipped CI/CD, notification, and reusable component systems that scaled to tens of thousands of users. Earlier in his career he created the top-selling iOS game StickWars (10M+ users) and served as a nuclear submarine officer, bringing disciplined, safety-first engineering and leadership to product development. A front-end-focused contributor to projects like a minimalist Jekyll template, he combines pragmatic UI polish with systems thinking from high-stakes operations.
11 years of coding experience
5 years of employment as a software developer
Bachelor of Science (B.S.), Computer Science, Bachelor of Science (B.S.), Computer Science at Duke University
English, Chinese
Github Skills (10)
css10
template-engine10
templater10
front-end-development10
jekyll10
html9
blogger8
blogpost8
blogspot8
darktheme6
Programming languages (15)
Github contributions (5)
sergiokopplin/indigo
Apr 2016 - Jan 2019
Minimalist Jekyll Template, dark and light themes
Role in this project:
Front-end Developer
Front-end DeveloperContributions:16 PRs, 29 comments, 7 issues in 2 years 9 months
Contributions summary:J primarily contributed to the user interface and visual presentation of the Jekyll template. They added and modified CSS to implement a title image for posts and centered the title image. They also updated the layout and styling of the blog post, including navigation links. In addition, they ensured the visual design was responsive.
jekylltemplateindigodark-themelight-theme
jehartzog/jehartzog.github.io
May 2016 - Aug 2016
Contributions:584 pushes, 5 branches in 3 months
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