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Issue 01 · Mobile engineer · Phnom Penh

VatanakCHAMROEUN

Android & Flutter Developer

I build reliable mobile products—from feature development and modernization through confident production releases.

Explore selected work Contact me
Modernizing mobile products, strengthening production stability, and owning releases from code to production.
01Experience

Building, modernizing, and shipping mobile products.

01

Smart Axiata Co., Ltd

Application Developer - Android

Jan 2025 — Present

Junior Application Developer - Android

Jan 2023 — Dec 2024

  • Shipped production features for SmartNas — Smart's flagship mobile app — including eSIM activation, ABA KHQR, AI Chatbot, gamification, Smart@Home 5G and many other projects.
  • Built end-to-end HR self-service modules in Smart HRIS (Cash Advance, Resignation, and Notification) with multi-role approval workflows.
  • Migrated legacy Java code to Kotlin, enforced SonarQube quality standards, and reviewed vendor submissions for architectural alignment.
  • Maintained 99.5% crash-free stability through Firebase monitoring, proactive production fixes, and security remediation.
  • Owned cross-functional delivery and mobile release processes across SmartNas, Smart HRIS, and ePOS-DMS.
  • Onboarded new team members, shared technical knowledge, and helped them understand the codebase, development workflows, and engineering standards.

02

Codingate Technology Co., Ltd

Junior Flutter Developer

Oct 2021 — Jul 2022

  • Promoted from intern to Junior developer after 3 months of internship in recognition of strong contributions to the team.
  • Built a production e-commerce app from requirements to launch.
  • Maintained and improved existing mobile apps.
02Selected work

Products shaped for real-world use.

01

SmartNas 5.0

Smart Axiata’s flagship self-service app for account management, payments, offers, and customer support.

Flutter · Dart

02

SmartNas

Smart Axiata’s flagship self-service app for account management, payments, offers, and customer support.

Android · Kotlin · Java

03

Smart HRIS

An internal employee platform for HR requests, approvals, notifications, and self-service workflows.

Android · Java

Internal
04

ePOS DMS

A dealer management platform used by Smart Axiata for sales, recruitment, and dealer relationship workflows.

Android · Java

Internal
05

ePOS FWBB

An application to sell and manage fixed wireless broadband services for customers.

Android · Java

Internal

Open source

Cambodia GeographyDiscover places & geography around Cambodia 📝Khmer FingerspellingKhmer fingerspelling is a specialized, visual system used in Cambodia for the deaf community to represent Khmer consonants, vowels, and diacritics via handshapes 👐

03 · Capabilities

The toolkit behind the work.

A practical mobile stack shaped by production delivery, code quality, collaboration, and continuous learning.

01

Technologies

Android (Java, Kotlin) · Flutter (Dart)

02

Development Tools

Git · VS Code · Android Studio · Xcode · Postman

03

Platforms & Quality

Firebase · Google Play Console · App Store Connect · SonarQube

04

Design & Collaboration

Figma · Jira · Confluence

05

Currently Learning

Swift · iOS Development

04Education

Foundations across technology and communication.

Cambodia Academy of Digital Technology - CADT logo

2019 — 2023

Cambodia Academy of Digital Technology - CADT

Bachelor of Computer Science

Institute of Foreign Languages - IFL logo

2019 — 2023

Institute of Foreign Languages - IFL

Bachelor of Education in English