Available for senior / lead Android roles · immediate start
800K+ Play installs 9+ yrs Kotlin Remote GCC & EU
Senior mobile engineer Android · Kotlin · Compose
Targeting Senior / Staff Android · platform & mobile lead · GCC & EU remote
Ahsan Islam — nine years of production Android delivery in Kotlin. Specialised in white-label commerce platforms, payment gateway integration, BLE hardware companions, wearables and production computer vision, delivered for teams in the UAE, Saudi Arabia and Pakistan.
Shipped and live on Google Play
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01 — About
Profile
Lahore, Pakistan · Remote
Working with Abu Dhabi, UAE
English · Urdu · Punjabi
Nine years delivering mobile products from concept to production at scale, Android-first, across phones, wearables and connected BLE hardware. Currently a senior Android developer at COFE App (Abu Dhabi), engineering a white-label commerce platform in which a single configuration produces a fully branded application.
Previously responsible for Android delivery on fintech and insurtech products: integrated five bank and mobile-wallet payment gateways behind a single checkout, raising transaction success by 50%. Also shipped Kotlin Multiplatform to Play — one Compose codebase on Android, iOS and Wasm web — and led the team that placed 2nd of 25 companies in the AWS and Epiphany AI/ML Startup Reactor.
02 — Experience
Professional experience
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Senior Android Developer
Sep 2023 — PresentCOFE App · Abu Dhabi, UAE (remote)
- Deliver 12+ brand apps from one Kotlin/Compose codebase using per-brand vendor configurators on a shared vendor-app framework.
- Own the payment layer: two gateway SDKs behind one provider abstraction — Tap Payments GoSell and Checkout.com Frames — plus Google Pay, tokenised saved cards and wallet/gift-card tender.
- 40+ Gradle feature modules — cart, checkout, order tracking, subscriptions with auto-renewal, wallet top-up, rewards, referrals, coupons and surge pricing.
- Apollo GraphQL per brand, REST over OkHttp, SQLDelight caching with migrations, Koin, Compose with MVVM/StateFlow.
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Senior Android Developer
Feb 2021 — Sep 2023Ozoned Digital · Lahore, Pakistan
- Built server-driven UI that cut load times ~30% and let product ship without releases.
- Integrated 5 payment gateways — three bank and two mobile-wallet providers behind one checkout — for +50% transaction success.
- OCR for national ID / driving licence capture; Amazon Rekognition for AI vehicle damage assessment.
- Health data sync across 4 health and wearable platforms.
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Senior Android Developer
Sep 2017 — Feb 2021Xeon Technologies · Lahore, Pakistan
- Improved sensor accuracy 25% with BLE tyre-pressure sensor communication.
- Shipped OTA firmware upgrades driven straight from the Android app.
- Firebase chat with image, video, audio, file and location payloads.
- AdMob mediation & waterfall, Play Store policy compliance, Node.js APIs on the side.
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Android Developer
May 2017 — Jul 2017RoboArt · Lahore, Pakistan
- IoT device connectivity over Bluetooth, Google APIs, Firebase DB & notifications, location services.
03 — Work
Shipped work
Architecture decisions, constraints and measured outcomes from production Android delivery.
White-label · F&B · Saudi Arabia
Barns
100K+ installs from one codebaseConfiguration over forking — one Kotlin/Compose build, branded app per coffee chain
Menu, loyalty, pickup and payments for one of Saudi Arabia's largest coffee chains — shipped from the shared white-label platform behind 12+ live brands.
100K+downloads
Read case study
Marketplace · GCC
COFE platform
Kuwait, KSA, UAE, Turkey500K+ installs · 12+ brand apps, two gateway SDKs, one codebase
Multi-brand marketplace — delivery, click-and-collect, loyalty and cross-brand rewards from the platform that spawned the white-label architecture.
500K+downloads
Read case study
Health · Wearables · Pakistan
Jubilee Active
Policy discounts from verified activity4 health platforms reconciled into one defensible daily total
Google Fit, Health Connect, Samsung Health and Garmin behind one trust-priority mapper — activity points redeemable against insurance discounts.
100K+downloads
Read case study
Payments · GCC checkout
Payment gateway layer
KNET, mada, STC Pay and five gateways+50% transaction success after one sealed result type across SDKs
Tap Payments and Checkout.com behind one provider abstraction — transient failures retried, real declines surfaced to the customer.
Read case study
Also available for contract work — Top Rated Plus on Upwork (100% Job Success, 56 jobs).
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04 — Contact
Contact
Open to senior mobile engineering roles, remote or with relocation to Europe and the GCC. Enquiries are answered the same day, typically within a few hours.
Full app portfolio (15+ on Google Play)
Apps
Shipped applications
All published on Google Play. Screenshots and install counts are taken directly from the public listings.
2023 → now · COFE App, Abu Dhabi
Barns
Food & drink · Saudi Arabia100K+ installs from a single white-label build
Android application for one of Saudi Arabia's largest coffee chains, covering menu browsing, drink customisation, pickup and delivery, loyalty and payments. Built on a white-label architecture in which a configuration change produces a fully branded application.
How it was built
The constraint. A branded app per coffee chain, delivered on the schedule of a marketing team rather than an engineering one. Forking the repository per brand would have meant every bug fix becoming a merge across every fork.
The decision. Branding was moved out of feature code entirely and treated as configuration: palette, endpoints and an enabled feature set resolved once at the composition root. Feature code asks what capability it needs, never which brand it is running as.
The result. Adding a brand became a configuration change rather than a code change, and one release train serves the whole portfolio. Barns alone has passed 100K installs on this build.
2023 → now · COFE App, Abu Dhabi
COFE
Food & drink · Kuwait, KSA, UAE, Turkey500K+ installs · 2 gateway SDKs, 12+ brand apps, one codebase
The flagship marketplace from which the white-label platform originated: dozens of coffee brands in a single application, with delivery, click-and-collect, virtual drive-thru, catering, in-app credit and cross-brand rewards across Kuwait, Saudi Arabia, the UAE and Turkey.
How it was built
The constraint. Checkout ran across multiple payment gateway SDKs, each reporting failure in its own vocabulary — exceptions from one, status strings from another, some reasons arriving only by webhook. No shared retry policy could be written against that.
The decision. Every gateway was placed behind one sealed result type that distinguishes a genuine decline from a recoverable, transient failure. Transient failures are retried; only real declines are shown to the customer.
The result. Customers were previously told a payment had failed when the network had simply hiccupped, and most did not try a second time. Correcting that lifted transaction success by roughly 50%.
2022 → 2023 · Ozoned Digital, Lahore
Jubilee Active
Health & fitness · Pakistan4 health platforms synced — Google Fit, Health Connect, Samsung Health, Garmin
Health and fitness tracking application for Jubilee Life Insurance. Step and calorie tracking integrated with Google Fit, Health Connect, Samsung Health and Garmin, with walking challenges and activity points redeemable against policy discounts.
How it was built
The constraint. Activity points converted into real policy discounts, so the step count had to be defensible. Reading Google Fit, Health Connect, Samsung Health and Garmin and summing them counted the same walk two or three times over.
The decision. Each platform sits behind one ActivitySource interface with a trust priority, and every reading is normalised by a dedicated mapper. Overlapping time windows are resolved once in the domain layer by that priority, so a walk recorded by both a watch and a phone becomes a single entry.
The result. One reconciled figure per day that both the insurer and the customer could rely on, with new platforms added by implementing a single interface.
AWS & Epiphany · 2nd of 25
AI vehicle damage assessment
Computer vision · competition build+80% recognition accuracy · 2nd of 25 companies nationally
Camera-based vehicle damage assessment built on Amazon Rekognition with on-device capture and OCR pipelines. Delivered 80% higher recognition accuracy and placed 2nd of 25 companies nationally in the AWS and Epiphany AI/ML Startup Reactor competition.
Competition project · not publicly released
Payments
Payment integrations delivered
Two production gateway SDKs sit behind a single PaymentProvider abstraction, so entering a new market requires adding a provider implementation rather than modifying checkout. Every item below is wired end to end through a live checkout. Read the payment case study →
Gateway SDKs integrated
- Tap Payments GoSell
- Checkout.com Frames
- Google Pay
- Google Play Billing
Tokenisation, charge and authorise, saved cards, themed SDK sessions, environment switching, network error handling.
Supported payment methods
- KNET
- Benefit
- mada
- STC Pay
- Tami
- Amex
- Visa · Mastercard
- Tabby BNPL
- Apple Pay scheme
- Wallet balance
- Gift cards
- Cash on delivery
Includes add-card and tokenised saved-card flows. Tabby is routed through the gateway and the Apple Pay scheme exists for backend parity; neither is an Android SDK integration on this side.
White-label platform
Brand applications on the shared platform
One Kotlin/Compose codebase carries 12+ brand modules, each configured by its own vendor configurator into a separate build with distinct identity, menu, loyalty rules and payment setup. The following brands were confirmed live on Google Play:
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Caribou Rewards ↗
UAE & Kuwait · coffee loyalty
Order ahead, curbside pickup and a points-based rewards programme for Caribou's Gulf stores.
10K+ downloads
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Kyan ↗
Saudi Arabia · Arabian coffee
Pickup and curbside ordering with an in-app wallet, gift cards and a stamp-card rewards scheme, bilingual EN/AR.
50K+ downloads
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FiLLi ↗
UAE · tea & café
Pickup and delivery for FiLLi Cafe's chai menu, with loyalty points and shareable gift cards.
10K+ downloads
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Pret A Manger ↗
Kuwait · coffee & food
Tiered rewards, a digital wallet, in-app games and pickup, office or doorstep delivery for Pret's Kuwait market.
5K+ downloads
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Darat Al Qahwa ↗
Saudi Arabia · speciality roaster
The first digital channel for a Saudi coffee house founded in 1970, covering menu, order tracking, gift cards and a stamp-card loyalty programme.
1K+ downloads
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Barn's X ↗
Saudi Arabia · express coffee
The express format of the Barns brand, published as a separate listing from the same platform build.
1K+ downloads
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20 Grams ↗
Gulf · speciality coffee
Speciality-coffee ordering and loyalty for the 20 Grams brand, configured from the shared codebase.
1K+ downloads
Unlisted brand modules
Additional brand modules on the platform
These brands also have modules in the same codebase, but no live Google Play listing published by COFE could be confirmed. They are recorded here as engineering work rather than linked as published applications.
Earlier and adjacent work
Other delivered applications
Additional delivered work across insurtech, retail and connected hardware, all currently or previously published on Google Play.
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Income Tax Calculator ↗
Finance · 10 countries
Take-home pay calculation across ten tax systems, delivered from one Compose Multiplatform codebase to Android, iOS and Wasm web, with tax rules served as versioned packs from Postgres rather than shipped in app releases.
Kotlin Multiplatform
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Classmate Playdate ↗
United States · parenting
School directory and playdate scheduler for parents, built across approximately 50 Gradle modules with the full Play Billing subscription lifecycle and Socket.IO chat.
Play Billing
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Jubilee i-Insure ↗
Pakistan · insurtech
End-to-end paperless insurance: account creation, plan selection, online and cash-on-delivery payments, document archives, policy servicing, claim intimation and panel hospital lookup, with a companion agent application for the field sales force.
10K+ downloads
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iXchange UP ↗
BLE hardware companion
Companion application for iXchange® headsets: automatic Bluetooth pairing, live battery telemetry, call and device-loss alerts, find-my-device, and over-the-air firmware upgrades. The same BLE work raised tyre-pressure sensor accuracy by 25%.
5K+ downloads
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Insurance Bazaar & SLIC Digital ↗
Pakistan · insurance marketplace
A marketplace comparing plans across insurers and completing purchase online, together with SLIC Digital, the State Life Insurance Corporation of Pakistan's digital channel, including CNIC OCR capture and online premium payments. SLIC Digital was withdrawn from Google Play in June 2025.
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Karachi Brand Studio ↗
Pakistan · lawn & fashion retail
Retail storefront built natively with Kotlin Multiplatform, with shared business logic behind browsing and product detail flows for a lawn and fashion catalogue.
Kotlin Multiplatform
Download figures above are Google Play's published install ranges, recorded from the live listings on 31 Aug 2026. They describe each application as a whole, including store operations, backend, content and marketing, rather than the contribution of any single engineer.
Stack
Technical stack
KotlinJetpack ComposeClean ArchitecturePaymentsKMPBLECI/CDGraphQL
Full stack in résumé PDF · expand app portfolio above for Play listings.
08 — Credentials
Education, certifications & recognition
BSc Computer Software Engineering
University of Central Punjab · 2014 — 2017
AWS & Epiphany AI/ML Startup Reactor
Led the team that placed 2nd of 25 companies nationally. The certificates appear in the recognition section below.
Java Certification
Recognition
Certificates
Signed awards, viewable without a login. Open any image for the full-size version.
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AI/ML Reactor certificate
AWS and Epiphany, 2022 · Ozoned Digital placed 2nd of 25 companies nationally, with Ahsan Islam leading the team
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Certificate of Appreciation
Ozoned Digital · awarded for contribution to the AWS AI/ML competition, signed by the co-founder and CEO
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Java course certificate
SoloLearn, issued 13 September 2017 · certificate CT-ZCTW1L1E, verifiable online
FAQ
Common questions
For recruiters screening a senior Android role.
Who is Ahsan Islam?
Android developer and software engineer, Lahore PK, remote EU/GCC. Nine years Kotlin, 800K+ Play installs. GitHub: ahsanislam007. See the official profile page.
Are you a Kotlin Multiplatform developer?
Yes — Income Tax Calculator ships Compose Multiplatform on Android, iOS and Wasm web. Details on the KMP developer page.
Are you available for senior Android roles now?
Yes — immediate start for senior or lead Android engineering roles, remote across EU and GCC time zones, or with relocation to Europe and the Gulf.
What is your remote setup and time zone?
Lahore, Pakistan (UTC+5). Three years fully remote with an Abu Dhabi Scrum team. Daily written updates and committed estimates.
Do you build native iOS or Flutter apps?
No native Swift or commercial Flutter/React Native. iOS is delivered through Kotlin Multiplatform and Compose Multiplatform where appropriate.