Justin Rentie
Software Engineer II at Hometap
Denver, Colorado, United States
Summary
👤
Senior🎓
Top SchoolJustin Rentie is a versatile full-stack software engineer with a decade of experience modernizing APIs and building user-focused web interfaces across startups and enterprises. He’s shipped data visualizations and desktop tools early in his career, then deepened backend expertise in Java, Scala, and Spring Boot while helping migrate mainframe-dependent services to modern stacks at FirstBank. Comfortable across the stack, Justin blends front-end React design sensibilities with hands-on API design, CI/CD, and AWS experience gained at TalentReef and Worldpay. He’s repeatedly led end-to-end feature delivery—from designing persistence with JPA/Oracle to deploying on unconventional platforms like IBM WebSphere Liberty—and helped teams adopt Agile practices. Based in Denver, he’s driven by pragmatic modernization work that balances legacy integration with clean, user-centered interfaces.
10 years of coding experience
9 years of employment as a software developer
Bachelor’s Degree Computer Science with a concentration in Human Centered Computing, Bachelor’s Degree Computer Science with a concentration in Human Centered Computing at Colorado State UniversityPalisade Senior High School
English
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (19)
water10
menu10
qgis9
gis9
jupyter-notebook8
maps8
web-application8
jupyter7
foundation7
notebook7
jekyll7
python7
angular6
visualizations6
jupyterlab6
Programming languages (6)
Github contributions (5)
jurentie/old_portfolio
Jul 2018 - Jun 2019
My personal blog
Contributions:151 commits, 132 pushes, 1 branch in 11 months
jekylljunior-developermy-personal-blog
jurentie/portfolio
Feb 2024 - Apr 2025
Contributions:159 pushes, 2 branches in 1 year 1 month
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