Joshua Marsh
Sr. Principal Engineer at UnitedHealth Group
Eagle Mountain, Utah, United States
Summary
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Senior🎓
Top SchoolJoshua Marsh is a Sr. Principal Engineer at UnitedHealth Group (Optum) with 20+ years of software development experience, focused on cloud-based healthcare solutions and architecture leadership. He designs, builds, and maintains scalable EMR and claims platforms using X12 and HL7, while mentoring multiple teams and steering architectural and business objectives. In a prior role at UnitedHealth Group, he created ConnectivityDirector, an X12/EDI routing system, and led as team lead and Scrum Master delivering data-intensive applications at scale. His career spans from programmer at ListFusion to owner of At Home Computer Consulting, reflecting a hands-on, full-stack mindset across enterprise and consumer projects. Based in Eagle Mountain, Utah, he holds a BS in Computer Science from American Sentinel University and, off the clock, is a father and enthusiastic nerd—an engineer who brings curiosity to every project.
13 years of coding experience
15 years of employment as a software developer
Bachelor of Science (BS), Computer Science, 3.70, Bachelor of Science (BS), Computer Science, 3.70 at American Sentinel University
Dutch
Stackoverflow
148reputation
13kreached
2answers
2questions
Github Skills (48)
webview10
reactive10
isomorphic10
dom10
webassembly10
web-applications9
angularjs9
rust9
leptos9
cursor8
appengine8
declarative8
lists8
golang7
decoding7
Programming languages (5)
Github contributions (5)
icub3d/gop
Apr 2015 - Feb 2016
Contributions:16 commits, 12 pushes, 2 branches in 9 months
icub3d/fn
Mar 2020 - Sep 2021
Contributions:1 review, 14 PRs, 20 pushes in 1 year 6 months
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