Hello, I am
Nguyễn Hoàng Duy
I Am Passionate
Experienced Software Developer specializing in end-to-end system development, including design, development, testing, and maintenance. Equipped with a diverse technical skill set and mastery of multiple programming languages, combined with deep expertise in industry-standard tools and engineering best practices. Excels at autonomous problem-solving and cross-functional team collaboration.
About me
Full-Stack Developer with 4+ years of experience, including 1.5 years in team leadership, technical mentoring, and system design.
| NAME | Nguyễn Hoàng Duy |
|---|---|
| BIRTHDAY | 15th August 1998 |
| AGE | 27 years |
| ADDRESS | 47 Lê Lai, P.12, Q.Tân Bình, TP. Hồ Chí Minh |
| PHONE | (+84) 395 689 977 |
| hoan.duy1508@gmail.com |
Viet Vang JSC
( 06/2022 - 06/2025 )Team Leader
Technical Development & Infrastructure
• Developed and maintained existing in-house applications to ensure stability and performance.
• Designed system architecture and databases based on business requirements.
• Set up and managed development, staging, and production environments.
• Deployed applications to servers and handled release processes.
• Designed and implemented automated backup procedures for server-hosted applications.Client Collaboration & Strategic Communication
• Communicated with clients and gathered requirements through collaboration with the BrSE (Bridge System Engineer).
• Translated business needs into functional specifications and technical solutions.
• Acted as a technical advisor, presenting key findings and strategic solutions to senior management while bridging communication between business and engineering teams.Team Leadership, Code Quality & Mentorship
• Planned and delegated development tasks across the team. Led the team through project implementation to ensure on-time delivery.
• Conducted thorough code reviews to ensure maintainability, security, and adherence to best practices.
• Performed team performance evaluations and implemented continuous improvement strategies.
• Provided technical mentorship to junior and fresher developers, supporting their growth and integration into the team.DOCTOR CHECK EVIDENCE BASED MEDICINE POLYCLINIC JSC
( 04/2022 - 04/2026 )PHP Developer
• Developed and maintained existing in-house applications to ensure stability and performance.
• Built a custom API system to integrate user log data and personal information from a WordPress homepage.
• Integrated a click-to-call API into the WordPress homepage to enhance user interaction and support accessibility.
• Optimized page load speed by improving image handling and script performance.AB RESOURCES PROGRAMMING CO.,LTD
( 11/2020 - 04/2022 )PHP Developer
• Developed and maintained high-quality software applications using PHP and database technologies.
• Developed ERP system modules for inventory management, cash flow tracking, and various business operations.
• Maintained and extended existing projects by adding new features based on client requirements.
What I do?
Web Development
Develop complete web solutions, from UI to server-side logic, using technologies like HTML, CSS, JavaScript, PHP, Laravel, and modern JS frameworks.
System Design
Design scalable, maintainable, and adaptable system architectures with optimized performance, data flows, and service interactions for complex web platforms.
Database
Design, optimize, and manage relational and NoSQL databases, ensuring data integrity, performance, and security.
Maintance
Maintain and improve legacy systems, fix bugs, monitor performance, and ensure uptime for production applications.
Leader
Plan tasks, assign work, and lead teams to deliver projects on time while supporting and mentoring team members.
Mentorship
Guide junior and fresher developers through code reviews, technical training, and soft skill development to support long-term growth.
PROJECTS

Recruitment System
Web-based recruitment platform for schools, enabling job seekers to apply and employers to manage candidates and recruitment events.

Keirin Race Outcome Prediction System
Built a predictive system for keirin cycling using historical data, real-time crawling, and analytics dashboards

Passenger Ticketing and Cargo Management System
Developed an integrated system for intercity ticketing and cargo management, supporting online payments, e-invoicing, SMS, call center, and providing APIs for third-party integration.

Kaigokensaku Website
A digital support portal for elderly care providers in Japan to manage electronic disclosure and registration processes

IvanExpress Website
A digital support portal for elderly care providers in Japan to manage electronic disclosure and registration processes

Viet Vang HRM
Built and maintained VV‑HRM, an internal HR management system supporting employee records, attendance tracking, payroll, training, and analytics with role-based access control.