Tracky
Now Playing · iOS
Seattle, WA
Kingsley O.
Full Stack Mobile Software Engineer
7+ years Building & Testing native iOS & Android experiences, .NET APIs, and React web apps.
Most recently at Block (Cash App), shipping the Afterpay experience on iOS & Android. Worked on the Walmart Vision Centre's iOS App recently as well. Currently partnering with clients to build out their full stack applications.
Cash App
Afterpay · iOS
Walmart
Lens Selection · iOS
Kelvin
Bill Pay Chat · Android
Tracky
Home · Android
Kelvin
Financial Assistant · iOS
Walmart
Prescription Eyeglasses · iOS
Cash App
Pay Over Time · iOS
Tracky
Home · iOS
Cash App
Afterpay Partners · iOS
Kelvin
Bill Pay Chat · iOS
Kelvin
Financial Assistant · Android
Tracky
Now Playing · iOS
Cash App
Afterpay · iOS
Walmart
Lens Selection · iOS
Kelvin
Bill Pay Chat · Android
Tracky
Home · Android
Kelvin
Financial Assistant · iOS
Walmart
Prescription Eyeglasses · iOS
Cash App
Pay Over Time · iOS
Tracky
Home · iOS
Cash App
Afterpay Partners · iOS
Kelvin
Bill Pay Chat · iOS
Kelvin
Financial Assistant · Android
Tribes
Joined Rips · iOS
Tribes
Create Rip · iOS
Tribes
Rip Chat · iOS
Tribes
Rip Details · iOS
Tribes
Joined Rips · Android
Tribes
Create Rip · Android
Tribes
Rip Chat · Android
Tribes
Rip Details · Android
Walmart
In-Store Order Lookup · iOS
Tracky
Now Playing · Android
Walmart
Vision Centre · iOS
Cash App
Afterpay Checkout · iOS
Tribes
Joined Rips · iOS
Tribes
Create Rip · iOS
Tribes
Rip Chat · iOS
Tribes
Rip Details · iOS
Tribes
Joined Rips · Android
Tribes
Create Rip · Android
Tribes
Rip Chat · Android
Tribes
Rip Details · Android
Walmart
In-Store Order Lookup · iOS
Tracky
Now Playing · Android
Walmart
Vision Centre · iOS
Cash App
Afterpay Checkout · iOS
About
Product Engineering
Shipping reliable & polished native apps, reliable APIs, and modern web experiences.
A software developer builds what's on the ticket. A product engineer owns the outcome, understands why a feature exists, how users experience it, and whether it actually moves the needle. I work in that second mode: from problem to shipped product, not just problem to merged PR.
What sets me apart is end-to-end ownership with product judgment. I ship polished SwiftUI and Jetpack Compose surfaces, wire them to reliable .NET APIs, and iterate until the experience lands. I use AI-accelerated development to move fast, but never at the cost of craft, test coverage, or the details users feel in every tap.
📍 Seattle, WA
Skills
Tools & technologies
Languages, frameworks, and practices I work with across mobile, backend, and web.
SwiftKotlinSwiftUIUIKitJetpack ComposeC#.NET REST APIsMySQLSQL ServerTypeScriptReactNext.jsAzureGCPCI/CDGit & GitHubClaude CodeCursorAgentic Development
Projects
Featured work
Building Tribes — a cross-platform motorcycle social app.
Tribes
Cross-platform motorcycle social app for organizing group rides with real-time sync.
A four-repo ecosystem powering rider accounts, location-based Rips, per-ride chat, and push notifications — currently in private beta in Vancouver.
- Real-time sync via SignalR across iOS, Android, and web
- Phone OTP auth, geo-based ride discovery, and push notifications
- Native SwiftUI and Jetpack Compose clients with ASP.NET Core backend on Azure
tribes-ios· Swift / SwiftUIPrivatetribes-android· Kotlin / Jetpack ComposePrivatetribes-service· C# / ASP.NET Core / AzurePrivatetribes-web· Next.js / React / VercelPrivate
Gallery
Apps + Features I've shipped
Screenshots from features I have worked on at larger teams and apps I have built End to End.
Tracky
Now Playing · iOS
Tribes
Joined Rips · iOS
Cash App
Afterpay · iOS
Tribes
Create Rip · iOS
Walmart
Lens Selection · iOS
Tribes
Rip Chat · iOS
Kelvin
Bill Pay Chat · Android
Tribes
Rip Details · iOS
Tracky
Home · Android
Tribes
Joined Rips · Android
Kelvin
Financial Assistant · iOS
Tribes
Create Rip · Android
Walmart
Prescription Eyeglasses · iOS
Tribes
Rip Chat · Android
Cash App
Pay Over Time · iOS
Tribes
Rip Details · Android
Tracky
Home · iOS
Walmart
In-Store Order Lookup · iOS
Cash App
Afterpay Partners · iOS
Tracky
Now Playing · Android
Kelvin
Bill Pay Chat · iOS
Walmart
Vision Centre · iOS
Kelvin
Financial Assistant · Android
Cash App
Afterpay Checkout · iOS
Contact
Let's connect
Book a discovery call, send an email, or connect on LinkedIn.