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41 followers · 28 following
  • Tokyo

Achievements

Achievement: Pair Extraordinairex2Achievement: Pull Sharkx4Achievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault ContributorAchievement: Starstruckx2

Achievements

Achievement: Pair Extraordinairex2Achievement: Pull Sharkx4Achievement: YOLOAchievement: QuickdrawAchievement: Arctic Code Vault ContributorAchievement: Starstruckx2

Highlights

Organizations

@LibraStudio

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daihase/README.md

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Stars Followers Portfolio

🧑‍💻 About Me

name: Daisuke Hasegawa
role: Freelance Mobile Engineer
location: Japan 🇯🇵
experience: 17+ years in software development
focus: Flutter / Swift / Go / AWS / GCP
  • 🔭 Building cross-platform mobile apps with Flutter & native iOS with Swift
  • 🏗️ Full-stack capable: infrastructure (AWS/GCP), backend (Go/Node.js), and mobile
  • 🌏 Experienced in offshore development with Vietnam — all tech communication in English
  • 🚀 Led 0→1 development for multiple startups and enterprise projects
  • 📱 Creator of Doodle Maker — 150K+ downloads on the App Store

🛠️ Tech Stack

Mobile

Flutter Dart Swift SwiftUI

Backend & Languages

Go Node.js JavaScript

Cloud & Infrastructure

AWS GCP Firebase Docker

Database & Tools

MySQL GitHub Actions

📌 Featured Projects

🎨 Sketch

A drawing engine for iOS. Pen, eraser, stamp, fill, undo/redo, shape tools and pen filters — everything you need to ship a paint app, in pure Swift.

Swift SPM / CocoaPods / Carthage
Stars Forks Last commit

💬 LSDialogViewController

Present any custom view as a modal dialog on iOS, with a set of ready-made show/hide animation patterns. Written in Swift.

Swift SPM / CocoaPods / Carthage
Stars Forks Last commit

📱 Doodle Maker

A drawing app on the App Store, built on top of Sketch. 150K+ downloads.

iOS App Store
Downloads

🎚️ slider_action_button

A slide-to-confirm action button for Flutter — the swipe gesture you want in front of irreversible actions.

Flutter Dart
Stars Last commit

📊 GitHub Activity

Profile details Top languages by repo Top languages by commit Productive time



Contribution streak

🐍 Contribution Snake

Snake eating my contribution graph

📫 Contact

Portfolio Email GitHub

Popular repositories Loading

  1. Sketch Sketch Public

    Sketch have a lot of basic functions to develop a drawing app for iPhone. Anyone can easily create drawing iOS Application.

    Swift 349 62

  2. LSDialogViewController LSDialogViewController Public

    Custom Dialog for iOS written in Swift

    Swift 70 9

  3. iOS_Sample iOS_Sample Public

    Swift 3

  4. Realtime_Chat_App Realtime_Chat_App Public

    Objective-C 3 1

  5. ViperArchitecture_iOS ViperArchitecture_iOS Public

    Swift 2

  6. PaletteStudio PaletteStudio Public

    Swift 1