EXPLORENow
Apple Intelligence & App Intents
Currently exploring on-device intelligence through Apple Intelligence and App Intents, alongside deeper AI-assisted engineering workflows.
Hi, I'm Udani 👋
I build to learn.
I learn to build better.
I'm a senior mobile engineer who builds native iOS and Android products — mostly Swift and SwiftUI, with solid ground in Kotlin and Jetpack Compose. I like learning a platform by building with it, and sharing what I find along the way.
- iOS & Swift
- Android & Kotlin
- AR / Spatial
- AI / ML
The journey
How the engineering interests evolved, one chapter at a time
What I'm exploring now
Teaching & sharing
SHARE11/2025
Visiting Lecturer, Colombo International Campus
Delivering undergraduate modules in Programming and Software Engineering, and guiding students on project implementation, design patterns, and career readiness.
Swift Concurrency / AI-assisted development
EXPLOREOngoing · approximate
Swift Concurrency + AI-assisted workflows
Leaned on Swift Concurrency and Xcode Instruments for responsive UI, and integrated Cursor and Claude Code into the development lifecycle for scaffolding, test generation, and refactoring — without losing architectural discipline.
Technical leadership
WORKOngoing · approximate
Senior Software Engineer / Lead Mobile Engineer
Lead mobile technical decisions across projects — architecture patterns, development standards, and code review — while mentoring 10+ junior developers.
AR / ML / spatial experiences
EXPLOREOngoing · approximate
ARKit visualization & Core ML tagging
Wrapped ARKit in UIViewRepresentable to bring AR furniture visualization into SwiftUI, and used Core ML + Vision to auto-tag and categorize screenshots by content.
Modern Swift / SwiftUI / architecture
LEARNOngoing · approximate
Combine-driven MVVM
Adopted Combine for network handling under MVVM, debounced search-and-suggest inputs, and merged multiple publishers with Zip and CombineLatest2 for realtime field validation.
Exploring Apple technologies
EXPLOREOngoing · approximate
CloudKit private and public containers
Synced user photos into a private CloudKit container, and built a separate CloudKit-backed library to keep sensitive configuration out of the main app bundle.
EXPLOREOngoing · approximate
CoreBluetooth for IoT peripherals
Used Bluetooth 5.0 Low Energy over CoreBluetooth for local, low-latency communication with connected hardware — the backbone of RITA's sensor network.
EXPLOREOngoing · approximate
Core Data ⇄ JSON synchronization
Built mechanisms to convert Core Data entities into JSON and back, handling nested relationships and keeping local storage and server state in sync without hurting app performance.
Building real products
BUILD2018 — ongoing · approximate
Architected 20+ native iOS and Android applications
Across delivery and logistics, fintech, IoT, ride-hailing, travel, news, retail, and internal enterprise tools — making the architecture, modularity, performance, and platform calls for each one.
Becoming a professional engineer
WORK03/2018
Joined Fixel Digital as a Software Engineer
Started at Fixel Digital (Pvt) Ltd, working across native iOS and Android application development — the beginning of 8+ years in mobile engineering.
LEARN2017–2018
BEng Software Engineering, First Class Honours
Completed a Bachelor of Engineering in Software Engineering at London Metropolitan University with First Class Honours.
Where it started
LEARN2015
Higher National Diploma in Software Engineering
Started the HND in Software Engineering at ESOFT Metro Campus, graduating with a Merit in 2017. This is where the fundamentals were laid.
Selected work
A few products that show different sides of the job
Twenty-plus native apps later, these are the ones that best show the range — on-device ML, IoT over Bluetooth, two-sided marketplaces, fintech security, and a video player that had to be stricter than usual.
01
Drive Me Home
iOS & AndroidA two-sided ride app pairing riders with sober drivers, built for both ends of the trip
Designing two apps that share a domain model but serve opposite jobs: one is about confidence and safety in a vulnerable moment, the other is about clarity and trust in day-to-day earnings.
Live trip state (matching, driver en route, in progress, completed) drives the UI on both sides, with map-based tracking, a package of in-trip safety tools (SOS, live trip sharing, masked calling) on the rider app, and a weekly earnings breakdown with trip-level detail on the driver app.
- Maps & Location
- Real-time trip tracking
- SwiftUI
02
Mixology
iOS & AndroidA cocktail recipe app that helps you find the right drink for the moment
Letting people browse the same recipe library from completely different angles — by occasion (party, brunch, nightcap), by spirit base, by flavour profile, or by a tag they just searched — without duplicating the underlying data.
Recipe detail pages show glassware, strength, prep time, ABV, and a full ingredient list per serving; browsing surfaces the same recipes through occasion grids, tag search, and category filters.
- REST APIs
- Search & filtering
03
CINC
iOSAn internal company hub for news, polls, flash sales, and daily mini-games
Mixing genuinely different content types — a podcast feed, live polls, time-boxed flash sales, and small mini-games (word search, memory match, daily quiz) — inside one consistent home screen.
Polls track vote counts and per-option percentages in real time; flash sales run on a countdown against a discount window; games are self-contained modules launched from a shared hub.
- REST APIs
- Push content
04
Ava
iOS & AndroidPremium and exotic car rental, from search to a priced booking
Pricing that changes with rental length (1–3 days vs. 4–7 vs. 8+) and options like a deposit-free toggle, shown clearly before the customer commits to anything.
Search and browse by brand or category, a detail page with full specs (engine, horsepower, fuel type, seats), and a booking flow that captures pickup/drop-off location, date, time, and delivery method before showing a priced summary.
- REST APIs
- Booking flows
- Localization
05
Lean and Fit
iOS & AndroidFood and supplement ordering with a full nutrition breakdown on every product
Running food and supplements through the same cart and checkout, while still surfacing product-specific detail — calories, protein, carbs, and fat per meal, brand and strength per supplement.
Browsing splits into Foods and Supplements, promotions apply as discount codes at checkout with minimum-order and expiry rules, and the cart recalculates subtotal, discount, delivery fee, and tax live.
- REST APIs
- Commerce
- Promotions
06
Litro Home Delivery
iOS & AndroidLP gas ordering and delivery, from dealer selection to doorstep
A consumer commerce flow layered on top of a real-world dealer and delivery network, including repeat ordering from past dealers.
Product selection, cart and delivery-charge calculation, cash or card-on-delivery payment, and order history with one-tap reordering, all backed by REST APIs.
- REST APIs
- Order management
- MVVM
Archive
Daily Mirror
iOS & AndroidNews app with breaking news, sections, and offline-friendly reading
Litro Manager
iOS & AndroidInternal dealer management for order status and dispatch
Moose Fans
iOS & AndroidCompanion app for cricket fans — polls, predictor, leaderboard, merch
Visit Uva
iOS & AndroidTravel companion for Uva Province — hotels, safety tips, maps
Gateway College App
iOS & AndroidParent-facing school app for attendance, reports, and notices
HidAd
iOS & AndroidClassifieds marketplace with category browsing and search
VHM Express
iOS & AndroidParcel delivery tracking with a full package journey timeline
HelloDo
iOSTask manager with custom categories and calendar views
LeafWire
iOSCommunity forum with feeds, reactions, and comments
Tour Gossips
iOS & AndroidTravel deals app with filters and hotel offers
My Leaves
iOSInternal employee leave request and approval app
Linguistic
iOSOnline learning app with classes, notes, and offline mode
Casser
iOSPhoto & screenshot management, organized by what's actually in the image
RITA
iOSA plant-care companion that talks to real sensors over Bluetooth
VOLA
iOS & AndroidFinanced phones, secured with mobile device management
Redeema
iOS & AndroidA rewards app where watching an ad properly is the whole product
Experiments
Things I built just to find out
Not every build ships to the App Store. Some of it is just a way of asking a platform “how does this actually work” and getting a real answer.
Letting an agent scaffold the boring parts
Folded Cursor and Claude Code into the daily workflow for feature scaffolding, unit test generation, and refactoring — with architecture review still done by hand.
- Cursor
- Claude Code
- Xcode Coding Intelligence
Getting app data onto the home screen
Researched WidgetKit's supported types and built a data-fetching layer so a widget could show real, current app content — not a static mock.
- WidgetKit
- SwiftUI
In-app purchases that feel invisible
Wired up StoreKit for premium unlocks, aiming for a purchase flow that's fast and doesn't make the user think about the transaction.
- StoreKit
AR furniture visualization
Placed furniture in a real room using ARKit, wrapped in a UIKit view so it could live inside a SwiftUI screen, with delegate methods standing in for native touch interactivity.
- ARKit
- SwiftUI
- UIViewRepresentable
Talking to sensors over Bluetooth LE
Paired a phone with IoT hardware — soil moisture, light, rain detection — over Bluetooth 5.0 Low Energy instead of leaning on Wi-Fi.
- CoreBluetooth
- IoT
Auto-tagging screenshots by content
Used Core ML classifiers and Vision to recognize objects and scenes in an image and generate tags like "documents" or "travel" automatically.
- Core ML
- Vision
Core Data ⇄ JSON, both directions
Built the mapping layer that turns Core Data entities into JSON for the server and back again, including nested relationships, without losing sync performance.
- Core Data
- JSON
A CloudKit library of its own
Split CloudKit access into a separate private library so sensitive configuration stays isolated from the main app target.
- CloudKit
Turning coordinates into places people recognize
Used geocoding, reverse geocoding, and region monitoring to convert raw location data into addresses and proximity alerts, tuned to go easy on battery.
- CoreLocation
- Maps
Tech ecosystem
What I reach for, and when
Apple
- Swift
- SwiftUI
- UIKit
- Swift Concurrency
- SwiftData
- Core Data
- Combine
- App Intents
- ARKit
- RealityKit
- Core ML
- Apple Intelligence
Android
- Kotlin
- Jetpack Compose
- Android SDK
- Coroutines
- XML Views
- Retrofit
Engineering
- MVVM
- Clean Architecture
- Dependency Injection
- Modularization
- Swift Package Manager
- RESTful APIs
- Performance Optimization
- Memory Management
Testing & delivery
- Xcode Instruments
- XCTest
- Swift Testing
- Git
- CI/CD
- Xcode Cloud
- Fastlane
- App Store
- Google Play
AI-assisted development
- Cursor
- Claude Code
- Xcode Coding Intelligence
About
Always building something weird, wonderful, or both
I've spent eight-plus years building native apps at Fixel Digital — over twenty of them, across delivery, fintech, IoT, travel, and more. What keeps it interesting is the same thing that got me into it: taking a new framework apart to see how it actually works, whether that's an AR furniture prototype, an on-device ML experiment, or a production app.
I care about the parts of engineering that don't show up in a screenshot — architecture that holds up under change, interfaces that feel responsive, and code a teammate can pick up without a walkthrough. And I like passing that on: lecturing, mentoring, and reviewing code with the engineers I work alongside.
I build
Native iOS and Android products, end to end — architecture decisions, the interface, and the release.
I teach
Undergraduate Programming and Software Engineering modules at Colombo International Campus.
I share
Code reviews and architectural workshops with the junior engineers I mentor at Fixel Digital.
I explore
Whatever Apple ships next — this year that's Apple Intelligence and App Intents.
Talks & writing
- TALK
iOSDevUK — Aberystwyth, UK · 2026
GCD to Swift Concurrency
First conference talk, at iOSDevUK — an iOS developer conference — on the shift from GCD to Swift Concurrency.