Jonathan Bailey
Senior Software Engineer at Tesco
London, England, United Kingdom
Summary
🤩
Rockstar🎓
Top SchoolJonathan Bailey is a Senior Software Engineer based in London with 15 years of experience building mobile-first products and cross-platform business logic. He rewrote Elfin Market’s iOS app in SwiftUI, contributed an Android Compose client, and co-developed shared logic with Kotlin Multiplatform, bringing practical experience in mobile architecture and code sharing. Earlier he helped grow Tesco’s Grocery app from prototype to production, owning features across home delivery and in-store flows. A long-time tinkerer who wrote iPhone jailbreak tweaks, he has deep platform-level iOS knowledge and a habit of learning new tools quickly. Comfortable full‑stack and with some DevOps, he favors iOS work while reliably contributing to Android and backend systems.
15 years of coding experience
9 years of employment as a software developer
Master of Engineering - MEng Computer Science, Master of Engineering - MEng Computer Science at Imperial College London
Stackoverflow
54,941reputation
6.7mreached
239answers
375questions
cocoa-touch
top-5%
javascript
top-1%
cocoa
top-5%
uikit
top-5%
css
top-5%
parsing
top-1%
Github Skills (200)
ios-library10
azure-pipelines10
snapshot-testing10
javascript10
animation10
bodymovin10
swift10
dependency-manager10
json10
after-effects10
uitableview10
iphone10
objective-c10
ios10
ipad10
Programming languages (15)
Github contributions (5)
Jon889/personal-setup
Jun 2016 - Feb 2025
Contributions:43 pushes, 1 branch in 8 years 9 months
Jon889/JPGeneral
Feb 2011 - Nov 2012
Contributions:22 commits in 1 year 9 months
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.