Joel Stewart
Co-Founder, CTO at LeagueOS
Saint Paul, Minnesota, United States
Summary
👤
Senior🎓
Top SchoolJoel Stewart is a seasoned engineer and entrepreneur with 11 years leading mobile-first product development as Co-Founder and CTO at LeagueOS and prior founder roles including Code Inversion and Filter8. He combines deep expertise in iOS/Android apps and games with hands-on experience in hardware, Apple MFi certification, industrial design, and manufacturing—having driven firmware, SDKs, and BaaS architectures that scaled to millions of users. Joel has repeatedly turned prototypes into retail-ready products, coordinating suppliers, certifications, and developer ecosystems while also building monetization and retention-aware software lifecycles. Equally comfortable as a tinkerer and a strategist, he pairs technical depth in mobile and cloud systems with a knack for mentorship, community building, and teaching others.
11 years of coding experience
15 years of employment as a software developer
BS Computer Science, BS Computer Science at Bethel University
Stackoverflow
1reputation
0reached
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Github Skills (172)
expressjs10
synthesis10
authentication10
microphone10
tuner10
rest-api10
textfield10
backend10
firebase10
relay10
firebase-authentication10
mbaas10
graphql-api10
animation10
push-notifications10
Programming languages (13)
Github contributions (5)
netizen01/SnappingStepper
Aug 2016 - Apr 2020
An elegant alternative to the UIStepper written in Swift
Contributions:17 pushes, 4 branches in 3 years 9 months
uistepperswiftiosuikit
hydrafpv/HaishinKit.swift
Oct 2017 - Mar 2019
Contributions:24 pushes, 6 branches in 1 year 5 months
rtmpmicrophonetvoscamerastreaming
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