🎯 a Solutions Architect with over 10+ years of full-stack experience

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I’m a Full-Stack Software Engineer and Solutions Architect with 10+ years of experience helping businesses and startups turn ideas into reliable, high-performance applications. I’ve built real-time chat systems, video calls, Kanban boards, financial tools, crypto trading bots, and mobile apps using Swift, Objective-C, Vue.js, Next.js, React Native, Flutter, Go, TypeScript, NestJS, and Python.

Certified in Agile methodologies and AWS cloud solutions, I bring a strong foundation in scalable system architecture, clean code principles, and cloud-ready deployments.

Whether you need to develop from scratch, improve existing features, or scale your product, I focus on clean architecture, smooth user experience, and long-term maintainability. I’m easy to collaborate with, deliver on time, and always aim to bring real value to your project.

I also maintain a daily running and meditation habit (tracked on Strava), which reflects the consistency, discipline, and long-term focus that I bring to my engineering work.

Let’s build something great together!

πŸ“§ Email: hgq287@gmail.com
πŸ“± Phone: +84 989 935 331
πŸ’¬ Let's talk anytime.

Portfolio & Profiles

πŸŽ“ Education

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Ho Chi Minh City University of Technology
Bachelor of Engineering (BE), Computer Engineering
πŸ“ Ho Chi Minh City, Vietnam
πŸ“… 2006 – 2011

πŸ’Ό Experience

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πŸ§‘β€πŸ« Technical Mentor & Solution Architect (Evening Role) – HaikoTek Ltd.

May 2025 – Present Β· Remote

  • Mentored junior developers in mobile and backend development (Flutter, React Native, Firebase, AWS).
  • Guided app architecture, clean code practices, and scalable systems.
  • Focused on sharing practical experience across full-stack development.

Skills: Python Β· TensorFlow Β· Flutter Β· React Native Β· Firebase Β· Google ML Β· AWS

🧩 Mobile Solutions Architect – Varin Team

Jan 2024 – Apr 2025
Built and maintained cross-platform mobile apps using Flutter and React Native for both iOS and Android.

  • Delivered smooth user experiences and fast performance across devices.
  • Integrated REST APIs, handled local data persistence, and implemented real-time features.
  • Collaborated in a fast-paced, agile team focused on delivering consistent business value.
  • Emphasized clean code, modular design, and scalable architecture.

Skills: Dart Β· Flutter Β· Node.js Β· React Native

πŸ€– Crypto Trading Bot Engineer (Freelance)

Aug 2023 – Present Β· Remote

  • Built trading bots using Python and AI to analyze exchange data.
  • Applied ML for prediction and strategy optimization.
  • Integrated with exchange APIs for automated trading.

Skills: Node.js Β· NestJS Β· Flutter Β· React Native Β· Machine Learning Β· AWS Β· Firebase

🍎 Senior iOS/macOS Developer – Floware

Aug 2015 – Present

  • Built macOS/iOS apps with IMAP, CalDAV, chat, video call, Kanban, etc.
  • Designed modern UI using Swift and Objective-C.
  • Developed cross-platform mobile apps using React Native & Flutter.

Skills: Xcode Β· Objective-C Β· Swift Β· C/C++

🌐 WordPress & Content Expert (Freelancer)

Sep 2014 – Aug 2017

  • Created WordPress websites with custom PHP/MySQL integrations.
  • Handled UI/UX, SEO optimization, and content creation.

Skills: WordPress Β· PHP Β· MySQL

🧩 Senior Full-stack Developer – Mecsu JSC

Jun 2013 – May 2015 Β· Ho Chi Minh City

  • Developed and maintained company websites and internal tools.
  • Integrated hosting solutions and scalable backend systems.

Skills: Web Hosting Β· AWS Β· PHP Frameworks

πŸ”§ Embedded Software Engineer – ADC

Jan 2011 – Jun 2013 Β· Vietnam

  • Developed firmware and drivers (RS232, RS485, MISO) for barcode scanners.
  • Debugged and optimized embedded systems for retail hardware.

πŸ› οΈ Technical Skills

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πŸ‘¨β€πŸ’» Programming Languages

  • Python (incl. FastAPI, Scikit-Learn, TensorFlow, CoreML)
  • JavaScript / TypeScript (React.js, Next.js, Node.js, NestJS)
  • Swift / SwiftUI / Objective-C (iOS, macOS)
  • PHP (WordPress, PHP Frameworks)
  • Go (cΖ‘ bαΊ£n)
  • SQL: SQLite, MySQL, MongoDB

πŸ“± Mobile Development

  • SwiftUI (macOS/iOS)
  • React Native
  • Flutter
  • Xcode

🌐 Web Development

  • HTML5 / CSS3 / Tailwind CSS
  • Vue.js, Next.js, React.js, NestJS
  • WordPress (Theme & Plugin Developer, Content Expert)
  • API Development (RESTful APIs, Backend Ops)

☁️ Cloud & DevOps

  • AWS (EC2, Lambda, API Gateway, S3, DynamoDB)
  • Firebase (Auth, Firestore, Hosting)
  • Google Cloud (VertexAI, ML APIs)
  • Web Hosting & CDN
  • Docker, CI/CD Pipelines

πŸ€– AI / ML / Data

  • Scikit-Learn, TensorFlow, CoreML
  • Google ML, AWS AI Services
  • Data pre-processing, model deployment
  • Risk management in ML pipelines

πŸ’Ό Tools & Ecosystem

  • Git, GitHub, GitLab
  • Command Prompt / Terminal Tools
  • macOS Development
  • ESL (English as a Second Language – Communication/Teaching)
  • Agile/Scrum, Technical Mentoring

πŸ“‚ Projects

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πŸ›‘οΈ SnifLeaf – iOS/macOS HTTPS Proxy & Network Inspector

Apr 2025 – Present Β· Associated with @HaikoTek
πŸ”— GitHub: github.com/hgq287/SnifLeaf
Built with: Swift, SwiftUI, Combine, NetworkExtension

An open-source macOS tool built for developers, testers, and QA engineers to inspect and analyze network traffic in real time. Whether you're debugging, verifying request flows, or analyzing API behavior β€” SnifLeaf gives you full visibility into your app's network activity.

πŸ’‘ A lightweight and native alternative to Charles Proxy, built from scratch using modern Apple frameworks.
πŸ™Œ Open-source and actively maintained β€” Contributions are welcome!

🧰 dttool – Python Toolkit & Developer REST API

Mar 2025 – Present Β· Associated with @Anonymous
πŸ”— GitHub: github.com/hgq287/dttool
Built with: Python, FastAPI, Pandas

A versatile Python toolkit and RESTful API designed to:

  • Convert between formats: JSON, CSV, Excel, Feather
  • Track API call history
  • Manage quick technical notes
  • Handle RGB-to-HEX conversions, and more.

βš™οΈ Built with scalability in mind β€” perfect for devs and data engineers.
πŸ™Œ Open-source and extendable β€” Contributions are welcome!

πŸ§˜β€β™‚οΈ Beyond Code: My Hobbies

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While I spend much of my time crafting software and solving technical challenges, I also dedicate time daily to my personal well-being.

  • πŸƒ Running helps me build discipline, mental clarity, and resilience β€” the same qualities I bring into my code.

  • 🧘 Meditation sharpens my focus and brings mindfulness into my decision-making, whether it's architecture design or team communication.

  • 🧎 Yoga keeps me grounded and adaptable - a reminder to stay flexible both physically and mentally.

These practices aren’t just hobbies - they’re essential tools that enhance how I show up, collaborate, and lead in both personal and professional spheres.

Β© 2025 Hg Q. All rights reserved.