Ahsan Islam3D Book a call

Available for senior / lead Android roles

Senior mobile engineer · Android · Kotlin · Compose · KMP

Seven years of production Android in Kotlin — white-label commerce, payment gateways, BLE hardware and computer vision, shipped for teams in the UAE, Saudi Arabia and Pakistan.

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  • 800K+ Play installs
  • 7+ yrs Kotlin
  • Remote GCC & EU
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01 — About

Android that people actually install.

Lead Android on the COFE white-label platform (Abu Dhabi, remote): one Kotlin/Compose codebase powering 12+ branded apps, including Barns at 100K+ installs in Saudi Arabia.

Earlier at Ozoned: five bank and wallet gateways behind one checkout, the Insurance Bazaar marketplace, health sync across four wearable platforms, and the team that placed 2nd of 25 in the AWS AI/ML Reactor. Also shipped Kotlin Multiplatform to Play — one Compose UI on Android, iOS and web.

0Google Play installs
0years of Kotlin in production
0brand apps, one codebase
0transaction success
  • AWS AI/ML Reactor · 2nd of 25
  • Employee of the Month & Quarter
  • Upwork Top Rated Plus · 100% JSS

See certifications, awards & recommendations

02 — Credentials

Certifications & recognition.

AWS AI/ML Reactor (2nd of 25), Ozoned Employee of the Month and Quarter, and LinkedIn recommendations from a direct manager and peer engineers.

AWS & Epiphany AI/ML Startup Reactor

Led the team that placed 2nd of 25 companies nationally.

Programme details

Recognition

Awards & certificates

Photo proof — open full-size. AWS Reactor placement, Ozoned awards, SoloLearn Java.

Recommendations

What teams say

Manager and peer feedback on LinkedIn.

“He owns architecture decisions end-to-end, writes clean, scalable Kotlin code, and moves fast without cutting corners. He thinks about the product, not just the ticket.”
Usman Ali Haideri · Peer engineer · Sept 2026
“Adaptable and accountable. His problem-solving skills and focus were exceptional. I highly recommend Ahsan for his dedication, professionalism, and ability to deliver results.”
Furkan Akdemir · Direct manager · Mar 2024
“His exceptional attention to detail and approach to complex problem solving were instrumental in the product success.”
Anum Amin · Colleague, COFE App
03 — Experience

The timeline.

  1. Senior Android Developer

    COFE App · Abu Dhabi, UAE (remote)

    • 12+ brand apps from one Kotlin/Compose codebase with per-brand configurators.
    • Payment layer: Tap Payments and Checkout.com behind one provider abstraction, plus Google Pay and wallets.
    • 40+ Gradle feature modules; Apollo GraphQL, SQLDelight, Koin, MVVM/StateFlow.

    KotlinComposeGraphQLPaymentsWhite-label

  2. Android Developer

    Tatayab.com · Kuwait (remote contract)

    • Kuwait’s largest perfumes and beauty app — 20,000+ products, 100K+ installs.
    • Catalog, search, PDP with variants, multi-payment checkout, wallet and loyalty.

    KotlinE-commerceRESTFirebase

  3. Senior Android Engineer

    Cappella · Cambridge, MA (remote contract)

    • Shipped AI cry detection, two-phone baby monitor and care tracking.
    • On-device voice ML from mic capture to parent alerts; Google Play launch July 2024.

    On-device MLKotlinPlay launch

  4. Senior Android Developer

    Ozoned Digital · Lahore, Pakistan

    • Server-driven UI that cut load times ~30%.
    • 5 payment gateways behind one checkout for +50% transaction success.
    • OCR for ID capture and Amazon Rekognition vehicle damage assessment.

    HiltCoroutinesAI/MLPayments

  5. Senior Android Developer

    Xeon Technologies · Lahore, Pakistan

    • 25% more accurate BLE tyre-pressure readings; OTA firmware from the app.
    • Firebase chat with rich media; AdMob mediation and Play policy compliance.

    BLEOTAMVVMFirebase

  6. Android Developer

    RoboArt · Lahore, Pakistan

    • IoT device connectivity over Bluetooth, Firebase and location services.

    IoTBluetooth

04 — Shipped work

Built, shipped, measured.

Scroll to rotate · click the phone to open the case study

01 / 08

Barns

Read case study
05 — Stack

Financial-grade by default.

Security shaped by fintech and insurtech checkout work — JazzCash, Easypaisa, UBL, Meezan, Alfalah — and hardened payment flows on the COFE platform.

  • SSL pinningOkHttp certificate and public-key pinning on sensitive traffic.
  • Root detectionIntegrity checks gate high-risk flows.
  • Secure storageAndroid Keystore with hardware-backed keys.
  • Biometric authBiometricPrompt with crypto key binding.
  • App hardeningR8 obfuscation and stripped debug surfaces.
  • Fraud-aware checkoutRecoverable failures split from hard declines.
KotlinJetpack ComposeKMPCoroutinesFlowMVIMVVMClean ArchitectureHiltKoinRetrofitOkHttpApollo GraphQLSQLDelightRoomFirebaseBLEOTACameraXML KitRekognitionHealth ConnectGoogle PayGradleGitHub ActionsBitriseR8KeystoreWasmSOLID
06 — Contact

Let’s build
what ships.

Hiring for senior or lead Android, remote EU or GCC? Same-day replies.

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