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Senior Software Engineer
💻
Senior Software Engineer

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tonytzan/README.md
$ cat about.md
9 years shipping Flutter, Android (Kotlin/Java) & iOS (Swift) apps.
I rebuild them from the ground up, set the architecture, then lead
the team that ships it. Based in Ho Chi Minh City, Vietnam.

$ ls ~/roles
Senior Mobile Developer  @ CleverCards     #1 Finance App, App Store Ireland
Consultant               @ Shipeace        AI logistics platform, $1.5M raised

$ echo $MOTTO
"Be the senior you needed when you were a junior."

~/metrics

🏆 #1
Finance App
App Store Ireland
💰 $1.5M
VC raised
with Shipeace
📱 12+
Apps shipped
in 9 years
📉 −20%
Crashes after
architecture rebuild
📈 +70%
Active users on
new e-commerce app

~/ai-workflow

I write the spec before I write the code — the spec becomes the contract, the AI implements against it.

📐 spec-driven dev specs first, code second — AI implements against a clear contract
🤝 daily pairing Claude, Copilot & Codex for scaffolding, refactors, tests, review
🚀 team enablement building the workflows & guardrails so the whole team uses AI well

Claude Copilot OpenAI Codex


~/stack

mobile Flutter Dart Android Kotlin iOS Swift

web & backend TypeScript Node.js Next.js GraphQL Python

cloud & devops AWS Firebase GitHub Actions Docker

payments Apple Pay Google Pay Stripe


~/projects

app what it is links
💳 CleverCards #1 Finance App, App Store Ireland · Apple Pay & Google Pay App Store · Google Play
🚢 Shipeace AI-powered logistics ops platform · web & mobile Website · Google Play
🥾 ACKTrails Trail-exploration app · Nantucket Conservation Foundation App Store · Google Play

~/stats

followers stars repos experience

activity graph

streak stats


$ echo "let's build something — reach out any time"

visitor count

Pinned Loading

  1. ai_chat ai_chat Public

    Mobile application using Udify AI API

    Dart

  2. flutter_clean_architecture flutter_clean_architecture Public

    Dart

  3. fund-wallet fund-wallet Public

    First project using Solidity.

  4. news-app news-app Public

    Mobile Developer Coding Challenge: NewsApp

    Dart

  5. joblogic-todo-app joblogic-todo-app Public

    Dart