engineering_flight_recorder
ANDREW V. CONCEPCION
AI-Native Software Engineer with deep platform knowledge, shipping high-output product work across Android, iOS, backend, and agent-first workflows.
mission_brief
AI-native software engineer with deep platform knowledge and 10+ years of experience shipping production systems across crypto, fintech, streaming, telecom, transport, rewards, safety, and e-commerce. Strong in Kotlin, Jetpack Compose, mobile architecture, performance tuning, release hardening, and third-party integrations. Known for agent-first execution, strong engineering judgment, and moving effectively across Android, iOS, backend, product, and design to ship reliable user-facing systems.
[RECORDER SIGNAL INDEX]
Engineering evidence across the record.
Android, architecture, leadership, fintech, reliability, and cross-platform delivery recur across the roles and systems below.
[SCAN BY SIGNAL]
All experience shown · choose a capability to highlight its evidence.
[systems_register]
Core systems
[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
Rust
UniFFI
SwiftUI
Swift
Firebase
Retrofit
SQLite
REST APIs
[chronological_flight_record]
Experience recorder
Evidence key: A public product listing confirms public availability; a first-person project note is my account of the work; and “Source implementation private” means the underlying code is not publicly inspectable.
AI-Native Software Engineer
Bitcoin.com
Bitcoin.com Wallet — Self-custody crypto wallet
Jun 2024 — Present
Public product listing
Source implementation private
- Led the foundation and first end-to-end Android implementation of a multichain rewards platform, then built reward-backed crypto market predictions and moved their service layer into shared Rust through UniFFI.
- Co-built Bitcoin replace-by-fee with fee-aware UTXO validation, speed-up/cancel flows, reusable transaction preparation and signing, opt-out controls, and dust protection; led an in-app single-chain-to-multichain wallet migration.
- Modernized staking and liquidity-reward pool reads from legacy RPC to typed REST, shipped provider-aware swap routing and recurring-buy reminders, and hardened startup, native builds, CI, and Android releases.
Senior Mobile Developer
Candyspace
ITVX — Streaming platform
Jun 2023 — Jun 2024
Public product listing
Source implementation private
- Built a recommendations panel that appears during playback, coordinating its animations with player-control and button movement across phone and tablet layouts.
- Independently delivered timeline scrubbing with a visual preview so viewers could see where playback would land before seeking.
- Fixed long-standing player issues and improved reliability with stronger error tracking, security fixes, and a Simple XML-to-Jackson migration.
Senior Android Developer
Red Airship
OCBC — Mobile banking
OpenPay — Fintech
Jun 2021 — Jun 2023
- Built and launched OCBC Business mobile banking flows spanning onboarding, account dashboards, transfers, and digital account opening.
- Integrated third-party SDKs, refactored selected modules to reduce coupling, and improved unit-test coverage for critical fintech flows.
- Improved OpenPay checkout reliability, UI responsiveness, partner-integrated payment flows, and release hardening.
Lead Developer
InnovationTeam
MySTC — Telecom project
May 2020 — Jun 2021
First-person project note · MySTC
Source implementation private
- 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 — Ride-hailing service
Jun 2018 — May 2020
First-person project note · OWTO
Source implementation private
- 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 — Rewards platform
Jun 2016 — Jun 2018
First-person project note · PopSlide
Source implementation private
- 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)
WebSafety — Parental controls
May 2014 — Jun 2016
First-person project note · WebSafety
Source implementation private
- 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.
[mission_extracts]
Selected projects
Bitcoin.com Wallet
Self-custody systems across multichain rewards, market predictions, Bitcoin transaction replacement, staking and liquidity pools, swaps, recurring-buy reminders, wallet migration, and shared Rust through UniFFI.
[self_custody]
Public product listing
Source implementation private
ITVX
Playback feature work on ITVX at Candyspace: in-player recommendations, independently delivered preview timeline scrubbing, tablet support, stronger error tracking, security fixes, and a Simple XML-to-Jackson migration.
[streaming]
Public product listing
Source implementation private
OCBC
Mobile banking delivery for a major Singaporean bank, including onboarding, account dashboards, transfers, digital account opening, and guarded third-party SDK integration.
[fintech]
First-person project note · OCBC
Source implementation private
OpenPay
Fintech checkout, spending-limit, performance, and partner-integration work with an emphasis on reliable payment completion and release hardening.
[payments]
First-person project note · OpenPay
Source implementation private
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]
First-person project note · MySTC
Source implementation private