I build and architect high-performance systems.
Focused on hands-on leadership and ownership-driven engineering.
With over 10 years in the industry, I specialize in owning complex systems from the first line of architecture to final production delivery. I believe that the best technical decisions are made by staying close to the code, ensuring that every architectural choice is practical, scalable, and stable under pressure. My expertise spans native macOS/iOS development, cross-platform mobile strategies, and resilient backend infrastructures.
Core Expertise
- End-to-End Ownership: I take responsibility for the balance between rapid delivery and long-term system maintainability.
- Execution & Delivery: I lead technical roadmaps by clearing blockers and ensuring teams ship high-quality software in remote environments.
- The Tech Stack: Deep experience in Native Swift (macOS/iOS), Flutter/React Native, and Node.js/Python backends. I prefer building systems that are simple to manage but hard to break.
- Technical Mentorship: I align teams through technical credibility and hands-on guidance, focusing on clean standards and proactive design reviews.
Where I Share & Connect
- GitHub: github.com/hgq287 - Open-source tools & Architectural boilerplates.
- Stack Overflow: stackoverflow.com/users/12345813/hgq287 - Active participation in the developer community.
- Medium: medium.com/@hgq287 - Sharing deep-dives on System Design & Engineering Leadership.
Selected Experience
Technical Leadership & Consulting | HaikoTek
May 2025 – Present (Part-time / After-hours)
- Roadmap: Directed the technical roadmap for a remote team, ensuring seamless alignment between mobile apps and backend services as the product evolved.
- Infrastructure: Designed and deployed a lean, AWS/GCP-based mobile backend from scratch, maintaining 99.9% uptime.
- Efficiency: Reduced development rework by ~25% through proactive design reviews and spotting architectural bottlenecks early.
Systems Architecture | Mobile Ecosystems | Varin Team
Jan 2024 – Apr 2025 (Part-time / Execution Focus)
- Strategy: Owned the technical direction for multi-platform shopping systems, balancing native performance with cross-platform delivery speed.
- Custom Solutions: Developed custom Native Bridges in Swift and Kotlin to bypass framework limitations and access platform-specific hardware capabilities.
Senior Engineering | macOS Productivity Suite
2015 – Present (Full-time)
- Long-term Ownership: Owned the core architecture of professional macOS tools used daily by enterprise users worldwide for over a decade.
- Legacy Migration: Managed a high-risk migration from Objective-C to Swift/Combine. This effort cut crash rates by 40% and drastically increased team velocity.
- Deep Tech: Engineered the calling and screen-sharing infrastructure, integrating AWS Chime to handle high-quality voice and video calls within long-running desktop processes.
Early Career & Foundation
- Business Venture | F&B Entrepreneur (2013 - 2014): Stepped away from tech to launch and manage a local restaurant. While the venture was a tough lesson in failure, it provided invaluable insights into business operations, crisis management, and the true meaning of "ownership."
- PHP Developer | Mecsu JSC: Managed company websites and internal tools using PHP and Wordpress.
- Embedded Software Engineer | Datalogic: Developed firmware for barcode scanners and optimized retail hardware systems.
- Internship | Renesas Design Vietnam: Research and development during thesis, focused on hardware/software co-design.
Independent Work | System Design & Open Source
- SnifLeaf (Owner): Designed and built a native macOS network inspector using SwiftUI and NetworkExtension to solve the bloat of traditional debugging tools.
- Trading Systems: Developed automated execution engines, owning the full pipeline from market data ingestion to real-time risk management.
Education
- Ho Chi Minh City University of Technology | Bachelor of Engineering (B.E.), Computer Engineering (2006 – 2011)
The Discipline
I apply the same discipline to my work as I do to my life. Daily running and meditation aren't just hobbies - they are how I maintain the focus and mental endurance needed to lead teams through stressful technical decisions.
Note: I believe strong technical leadership is earned through real work. I stay hands-on in critical parts of the code to ensure our architecture remains practical and efficient.
Contact
- Email: hgq287@gmail.com
- Phone: +84 989 935 331
- Availability: Global Remote (US / EU)