Professional Summary
Senior Android engineer, 9+ years in Kotlin — 800K+ Play installs across white-label commerce, payments, BLE, health sync, and on-device voice ML. At Cappella (MIT-founded) shipped cry classification on-device (mic → inference → parent alerts). Lead Android on COFE’s white-label platform (12+ brands, 40+ modules, dual payment gateways), Abu Dhabi remote since 2023. Top Rated Plus on Upwork (100% JSS, 56 contracts, 2,203 hrs). Open to senior/lead Android roles, remote EU/GCC.
Professional Experience
COFE App, Abu Dhabi, UAE (remote)
- White-label Kotlin/Compose platform for 12+ F&B brands (COFE, Barns, Caribou, Kyan, Pret) via per-brand vendor configurators; Barns shipped at 100,000+ Play installs (menu, loyalty, payments, pickup/delivery).
- Own payments: Tap GoSell and Checkout.com Frames behind one PaymentProvider, plus Google Pay, KNET, mada, STC Pay, Tabby BNPL, wallets and gift cards.
- 40+ Gradle modules — Clean Architecture, MVVM/MVI, Koin, Apollo GraphQL, SQLDelight, Coroutines; analytics SDKs behind an event-parser seam; Jenkins/Bitrise, R8, Crashlytics.
Tatayab.com, Kuwait (remote)
- Freelance Android on Kuwait’s leading perfumes and beauty e-commerce app (20,000+ products; 100K+ Google Play installs) — concurrent with COFE.
- Shipped catalog/search/bundles, product detail with variants and reviews, cart, multi-gateway checkout, order tracking, profile/addresses, wallet and loyalty on Kotlin, REST and Firebase.
- Case study: ahsanislam.com/work/tatayab-android-ecommerce.html.
Cappella, Cambridge, MA (remote)
- On-device voice ML / cry classification (Kotlin + Java ML libs): mic capture → local inference → parent notifications (hunger, tiredness, discomfort) — no cloud round-trip for classification.
- Hired by founder Apolline Deroche (MIT Sloan) to ship Cappella (com.cappella.app): cry detection, two-phone monitor, feeding/sleep/diaper tracking, AI soothing sounds; Play launch July 2024.
- Cleared launch blockers (auth, profile, rotation); named on founder’s Android launch post. Product shut down Nov 2024 — case study: ahsanislam.com/work/cappella-android-cry-detection.html.
Ozoned Digital, Lahore, Pakistan
- Five payment gateways (JazzCash, Easypaisa, UBL, Meezan, Alfalah) — +50% transaction success; server-driven UI cut load times ~30% without Play releases.
- Shipped Insurance Bazaar, Jubilee i-Insure, Agent Hub and Adamjee Field App; Jubilee Active (100k+ installs) with Health Connect, Google Fit, Samsung Health, Garmin.
- AWS Rekognition vehicle-damage AI (+80% accuracy); 2nd of 25 in AWS/Epiphany AI/ML Startup Reactor; CNIC/licence OCR; stack modernised to Kotlin, Compose, Hilt.
Xeon Technologies, Lahore, Pakistan
- Improved BLE tyre-pressure sensor accuracy by 25% and shipped OTA firmware upgrades from the Android app (iXchange UP headset companion).
- Built Firebase real-time chat with image, video, audio, file and location messages plus FCM notifications.
- Standardised MVVM architecture with Dagger, RxJava and Retrofit; managed AdMob mediation and Google Play policy compliance.
RoboArt, Lahore, Pakistan
- Integrated Bluetooth IoT connectivity, Google Location Services, Firebase database and push notifications into the companion Android app.
Selected Projects
Cappella — on-device voice ML cry detection (ahsanislam.com/work/cappella-android-cry-detection.html)
On-device Voice ML · Cry detection · Kotlin · Privacy
Baby-care Android app: on-device cry classification (mic → inference → parent alerts), two-phone monitor, tracking and AI soothing. Play Jul 2024 (MIT-founded); later shut down. Case study on site.
COFE white-label + Barns (Google Play: com.cofedistrict)
White-label · Compose · Payments · F&B
500k+ installs across COFE and 12+ brands; Barns (KSA) 100k+. Kotlin, Compose, MVI, Apollo GraphQL, SQLDelight, dual payment SDKs.
Tatayab (ahsanislam.com/work/tatayab-android-ecommerce.html)
E-commerce · Kotlin · Payments · Freelance
Kuwait perfumes & beauty e-commerce Android app (20k+ products): catalog, PDP, checkout, payments, rewards. Freelance contract Mar 2024–Mar 2025. 100k+ Play installs.
Income Tax Calculator (Google Play: com.xeontechnologies.incometaxcalculator)
Kotlin Multiplatform · Compose Multiplatform
KMP + Compose Multiplatform (Android, iOS, Wasm); 10-country tax packs, Supabase versioning, Play Billing via expect/actual.
Jubilee Active (Google Play: com.ozoneddigital.jubileeactive)
Health Connect · Google Fit
Health tracker with Google Fit, Health Connect, Samsung Health, Garmin — 100k+ Play installs.
Classmate Playdate (Google Play: com.classmates.playdate)
Play Billing · Multi-module
~50 Gradle modules; Play Billing subscriptions, Socket.IO chat, OTP + SMS Retriever.
Insurance Bazaar & Jubilee i-Insure (Google Play: com.ozoneddigital.insuranceBazaar)
Insurtech · Payments
Insurtech marketplace plus paperless customer insurance (plans, payments, claims). i-Insure 10k+ installs.
iXchange UP (Google Play: com.xeontechnologies.ixchange)
BLE · OTA
BLE headset companion: auto-connect, battery telemetry, find-my-device, OTA firmware.