Abigail Idowu

Mobile developer

Lagos, Nigeria she/her

I turn Figma files into pixel-accurate screens with clean architecture underneath. Mostly Android in Kotlin and Jetpack Compose, plus Flutter and Kotlin Multiplatform for iOS.

Open to mobile roles: remote, hybrid or Lagos

Currently building Ledjer An offline-first cashbook for small traders

About

I’m Abigail, a mobile developer in Lagos with 3+ years of building production apps. Apps that handle money are my favourite to build: bill payments, bookings, and now a cashbook.

I care about pixel-accurate UI, tests that earn their keep and pull requests that are easy to read. Right now I’m building Ledjer, an offline-first cashbook for small traders.

Toolkit

Languages
Kotlin, Dart
Android
Jetpack Compose, Material 3, CameraX, ML Kit, Media3
Architecture
MVVM, Clean Architecture, Coroutines and Flow, Hilt, Koin
Data
Room, Paging 3, Ktor, Firebase
Cross-platform
Kotlin Multiplatform, Compose Multiplatform, Flutter
Testing
JUnit, MockK, Compose UI tests, Espresso
Tools
Git, Gradle, Figma, Azure DevOps, GitHub Actions

Experience

  1. Jun 2026 to Sept 2026Remote

    CrowdGen by Appen

    AI Training and Data Contributor, part-time

    Ranked model responses for RLHF and wrote the reasons behind each choice. Checked how well models follow instructions, and wrote and rated prompts.

    • RLHF
    • Preference ranking
    • Prompt writing

  2. Sept 2025 to Jul 2026Hybrid, Lagos

    GoPaddi

    Android Developer, contract

    Top committer on the Android app of this Dallas, US travel and lifestyle platform.

    • Trip planner flight booking, with live availability checks before payment.
    • Event management end to end: ticket check-in by barcode scan with CameraX and ML Kit, a live shared guest list and co-managers.
    • An in-app video editor on FFmpeg: clips, music, voiceover and captions.
    • Moments (stories), feed features and hotel in-stay ordering.
    • Account security: 2FA, phone verification and ID upload.
    • Paging 3 pagination and caching, plus reviewing and merging teammates’ pull requests.
    • Kotlin
    • Jetpack Compose
    • Coroutines
    • Flow
    • Paging 3
    • CameraX
    • ML Kit
    • FFmpeg
    • JUnit
    • MockK

    Google Play: GoPaddi, opens in a new tab App Store: GoPaddi, opens in a new tab

  3. Dec 2024 to Jun 2025Remote

    Freelance

    Flutter Developer

    • Flexy Demy, an e-learning app for FlexyDemy Nigeria Ltd: student and tutor sides, with phone and tablet layouts.
    • Blink, a story-writing app, and Cartsy, a two-sided shopping app: sign-up, sign-in and the main screens.
    • Flutter
    • Dart
    • Firebase

  4. Nov 2024 to Jan 2025Remote

    Cakkie CakkieFoods Ltd

    Android Developer Intern

    Built search end to end, with tabbed results across listings, jobs and shops and a photo and video grid. Added native sharing with deep links, and flagging posts through the report API.

    • Kotlin
    • Jetpack Compose
    • MVVM

  5. Mar 2023 to Dec 2023Remote

    Rinse Creative Lab Cheap Data Nigeria

    Android Developer, contract

    Transaction history and payment status (success, failed or pending) for data, airtime and bill payments.

    • Kotlin
    • MVVM
    • Dagger-Hilt

    Google Play: Cheap Data Nigeria, opens in a new tab

Training

  • HNG InternshipHNG X finalist, top 300 of 22,0002023
  • KodeCampAndroid track2022 to 2023

Projects

In progress

Ledjer

An offline-first cashbook for small traders, on Android and iOS.

  • Kotlin Multiplatform
  • Compose Multiplatform
  • Room
  • Koin
  • Firebase

Contact

I’m open to mobile roles: remote, hybrid or in Lagos. Email is the quickest way to reach me.