Kelvin Kosbab
Senior Software Engineer at Amazon
Denver, Colorado, United States
Summary
👤
Senior🎓
Top SchoolKelvin Kosbab is a Senior Software Engineer in Denver with 11 years of experience building full-stack, mobile-first applications and cloud services at scale. He has driven core engineering for Amazon’s Halo iOS app—owning first-time user flows, data sync, performance investigations, and cross-package library upgrades—while also founding Kozinga to deliver consumer mobile apps like TallyBok. Comfortable in teams ranging from small startups to hundreds of engineers, he blends hands-on iOS expertise with systems thinking around app size, launch latency, and device-to-cloud syncing. Kelvin mentors junior engineers, shapes product polish through animation and UX optimizations, and serves as an internal Apple-platform authority. His background in electrical engineering and an MS in computer science underpin a pragmatic approach to complex integration problems. Notably, he balances enterprise-scale delivery with entrepreneurial product work, shipping both App Store releases and bespoke developer tooling.
11 years of coding experience
10 years of employment as a software developer
Master of Science (MS), Computer Science, 3.4 GPA, Master of Science (MS), Computer Science, 3.4 GPA at University of Colorado at BoulderBachelor of Science (BS), Electrical and Electronics Engineering, 3.6 GPA, Bachelor of Science (BS), Electrical and Electronics Engineering, 3.6 GPA at University of St. Thomas
Stackoverflow
11reputation
182reached
0answers
1question
Github Skills (9)
react-native6
animate2
collada2
animation2
swift2
rtd2
ios2
plane2
arkit1
Github contributions (5)
kelvinkosbab/BasicSwiftUtilities
May 2021 - Nov 2022
Contributions:89 commits, 131 pushes, 2 branches in 1 year 6 months
kelvinkosbab/KozLib
Sep 2017 - Feb 2019
Contributions:97 commits, 14 PRs, 47 pushes in 1 year 4 months
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