Andrew Concepcion
[status: resume_ready]
professional_summary

AI-accelerated developer with deep platform knowledge and 10+ years of experience shipping production systems across fintech, telecom, transport, rewards, safety, and e-commerce. Strong in Kotlin, Jetpack Compose, mobile architecture, performance tuning, release hardening, and third-party integrations. Known for high-output execution, strong engineering judgment, and moving effectively across Android, iOS, backend, product, and design to ship reliable user-facing systems.

[core_stack]

Core Skills

[android]
Kotlin Java Jetpack Compose XML layouts Android SDK Coroutines Flow RxJava RxKotlin
[architecture]
Clean Architecture MVVM Modularization SDK integration Unit testing CI/CD Release hardening Performance tuning
[cross_platform_adjacent]
Compose Multiplatform Kotlin Multiplatform SwiftUI Swift Firebase Retrofit SQLite REST APIs
[career_trajectory]

Experience

Lead Android Developer
Littlepay
Dec 2025 — May 2026
  • Led Android delivery and technical direction for Littlepay mobile initiatives.
  • Worked across product, design, and backend stakeholders to keep implementation quality, release confidence, and user-facing reliability high.
  • Guided architecture and code quality decisions with an emphasis on maintainable, testable Android code.
Senior Mobile Engineer
RedAirship Pte Ltd
Jun 2021 — Dec 2025
  • Built and launched a new mobile banking app for a major Singaporean bank, shipping onboarding, account dashboard graphs, transfers, and digital account opening with Android and iOS feature parity.
  • Integrated third-party SDKs, refactored selected modules to reduce coupling, and improved unit-test coverage for critical fintech flows.
  • Improved checkout reliability, UI responsiveness, and release hardening on openpay, and shipped production fixes and features for Solo's whitelabel delivery brands.
Lead Developer
InnovationTeam (MySTC, Saudi Telecom)
May 2020 — Jun 2021
  • Led an offshore team of five senior Android engineers on MySTC, serving 10M+ installs across multilingual customer journeys.
  • Drove Clean Architecture and MVVM adoption with RxJava and RxKotlin, improving modular boundaries and release confidence.
  • Delivered performance, stability, and data synchronization improvements across account, ordering, and support flows.
Team Lead
iPARA Technologies and Solutions (OWTO)
Jun 2018 — May 2020
  • Led cross-functional delivery across Android, iOS, and backend for a ride-hailing platform that grew to 500K+ downloads.
  • Architected the mobile app with Uber RIB-inspired patterns to support modular growth and clearer ownership boundaries.
  • Improved booking reliability, payment-path handling, and backend API coordination for real-time transport flows.
Senior Android Developer
YOYO Holdings Pte. Ltd. (PopSlide)
Jun 2016 — Jun 2018
  • Led Android development for a rewards app with 1M+ downloads across Southeast Asia.
  • Migrated large Java surfaces to Kotlin, reduced regressions in fragile areas, and shipped safer feature rollouts through A/B testing and guardrails.
  • Improved API and caching behavior while keeping monetization-critical lockscreen and notification surfaces stable.
Full-Stack Web and Mobile Developer
Internet Strategy Branding and Execution (ISBX)
May 2014 — Jun 2016
  • Delivered end-to-end features for WebSafety across Android, iOS, web, and backend systems.
  • Worked through undocumented Android APIs, GPS and sync reliability, and security-sensitive feature requirements.
  • Helped ship a robust parental-controls platform with stronger operational and compliance posture.
[selected_projects]

Projects

OCBC

Mobile banking delivery for a major Singaporean bank, including onboarding, account dashboards, transfers, digital account opening, and guarded third-party SDK integration.

[fintech]
MySTC

Telecom-scale Android product serving 10M+ installs, where I led a team of five senior engineers and drove modular, multilingual stability improvements.

[telecom_scale]
OWTO

Ride-hailing platform work across Android, iOS, and backend delivery, improving booking reliability, payment-path handling, API contracts, and release ownership as the product scaled to 500K+ downloads.

[transport]