About Me
.NET Developer with 6 years of experience specializing in backend architecture and enterprise application development. Proven capability in executing legacy migrations from .NET Framework to .NET Core and optimizing API performance. Experienced in designing scalable RESTful services (Cart, Order, Promotion). Focused on writing clean, maintainable code and collaborating effectively with cross-functional teams to deliver stable products
Skills
Key Highlights
- 🚀High-scale Cart/Order APIs (MWG)
- 🌍Multi-national Travel Systems
- 🔄SOAP to REST Modernization
- ⚡Query & API Performance Tuning
Education
Software Engineering
Carnegie Mellon University (CMU) – the No.1 university in the U.S. for Computer Science and Software Engineering (U.S. News & World Report 2015-2017).
Bachelor of Information Technology
Van Lang University (VLU)
Contact
EXPERIENCES
Easybook.com (Travel Booking System)
.NET Developer | 09/2025 - Present
"Easybook is a leading land and sea travel booking platform in Southeast Asia, providing ticketing solutions for buses, ferries, trains, and car rentals across multiple countries."
🛠️ Core Responsibilities
- System DevelopmentParticipated in developing and optimizing web applications and RESTful APIs using .NET Core and C#.
- Database OperationsWorked with SQL Server; wrote stored procedures and views; assisted in query tuning
- System IntegrationContributed to migrating legacy services from SOAP to lightweight RESTful APIs for better response times.
🏆 Key Achievements
Successfully migrated communication layer from legacy SOAP to REST APIs for assigned modules.
Optimized SQL Server queries for the booking module, improving stability during high-traffic hours.
Resolved production bugs and ensured compliance with business logic requirements.
🚀 Featured Projects
1. Kymtrans API Integration
Support real-time seat searching, mapping, and automated booking with a background sync pipeline.
- ●Developed automated Scheduler service for ticketing data sync.
- ●Built backend logic for dynamic interactive seat layout rendering.
- ●Implemented booking constraints ensuring zero seat allocation discrepancies.
2. BRF System Modernization
Transitioning legacy integration for Britain Resort Ferry (BRF) to a modern REST platform.
- ●Executed communication layer migration from legacy SOAP APIs.
- ●Refactored data models and eliminated slow-running code segments.
- ●Improved API response times for a more stable ferry booking experience.
3. RedBus Intelligence Location Mapping
Map and analyze location data between competitors to identify missing routes and gaps.
- ●Developed data ingestion module to align location datasets with RedBus.
- ●Built processing logic to filter potential trip gaps and unlinked partners.
- ●Generated automated reports to support data-driven expansion decisions.
MWG Group E-Commerce Platform (MWG Shop)
Software Engineer / .Net Developer
MWG Shop is a unified e-commerce platform serving all major retail brands under MWG Group, including Thegioididong, Dienmayxanh, Bachhoaxanh, Avakid, and more. The platform is built to handle high volumes of online traffic and transactions, supporting millions of customers nationwide. Its advanced infrastructure is designed for growth, flexibility, and rapid adaptation to evolving business needs, helping MWG Group maintain its position as one of Vietnam’s leading retail conglomerates.
🚀 Key Responsibilities & Achievements
- •Designed and developed a scalable shopping cart API serving all MWG Group's e-commerce websites, including Thegioididong, Dienmayxanh, Bachhoaxanh, Avakid, and others.
- •Architected the cart service to meet complex purchasing requirements and ensure smooth user experiences across multiple platforms.
- •Ensured rapid response times, reliability, and flexibility of the API, enabling seamless integration and consistent functionality across MWG Group sites.
- •Collaborated across product and development teams to align on feature requirements and deliver high-quality API services supporting millions of users daily.
- •Contributed to building a modular and maintainable API architecture facilitating future expansions and enhancements.
🛠️ Key Responsibilities & Achievements
- Website System Migration and Optimization:
- •Led the seamless migration of the Bachhoaxanh website from .NET Framework to .NET Core, ensuring robust, stable operations for a high-traffic e-commerce platform.
- •Optimized key business modules; reduced shopping cart response time from over 2 seconds to under 200ms, and ensured all other site requests executed in under 200ms, significantly improving system performance and user experience.
- System Architecture Design and Code Refactoring:
- •Redesigned and restructured legacy code into modern, clean, multi-layered service architecture.
- •Separated business logic into distinct service layers, greatly enhancing code manageability, scalability, and maintainability for future feature development.
- •Refactored and improved existing codebase to comply with best coding practices while meticulously maintaining all core business rules and business flows.
- Mobile Application Development:
- •Concurrently took on the additional responsibility of developing and maintaining the Bachhoaxanh mobile app using React Native for approximately 3 years.
- •Delivered new features, optimized performance, and ensured cross-platform compatibility, expanding the reach and engagement of Bachhoaxanh on mobile devices.
- Collaboration & Continuous Improvement:
- •Worked closely with cross-functional product, UI/UX, and QA teams during all stages of the SDLC to ensure rapid, high-quality deliverables.
- •Proactively identified bottlenecks and implemented innovative solutions for both backend and mobile platforms.
- •Contributed in documentation, onboarding, and knowledge transfer initiatives for new team members.
🏆 Key Results
Achieved faster and more reliable shopping experiences, supporting millions of daily users.
Ensured business operations continued flawlessly during and after major technology transitions.
Bolstered platform scalability and streamlined future development cycles via a modular, maintainable architecture.
Played a pivotal role in strengthening Bachhoaxanh’s mobile offering and digital transformation roadmap.
HIGHLIGHT PROJECT
Bachhoaxanh Website Project
Bachhoaxanh is one of the leading e-commerce platforms in Vietnam specializing in retailing food and fast-moving consumer goods. The website handles millions of visits and transactions daily, requiring a highly stable, fast, and scalable technical foundation.
Role & Contributions
- Migrated the website architecture from the legacy .NET Framework to the modern .NET Core platform, leveraging the superior performance and scalability of .NET Core.
- Redesigned the software architecture into a multi-layered model by separating the system into distinct service layers, enhancing manageability, development flexibility, and maintainability.
- Optimized processing workflows, especially reducing the shopping cart response time from over 2 seconds to under 200ms, significantly improving user experience.
- Ensured that all other website requests are processed swiftly with a maximum response time under 200ms, contributing to the overall system performance boost.
- Preserved all existing business rules accurately, ensuring that all current business operations continue to run smoothly after refactoring and optimization.
- Improved the system's logic structure and rewrote code following clean coding standards, enhancing system stability, readability, and minimizing operational risks during maintenance and future upgrades.
📱 Mobile Expansion
Additionally, during the migration from .NET Framework to .NET Core APIs, took on the role of developing the Bachhoaxanh mobile app using React Native for approximately 3 years, contributing to the expansion of the platform's mobile presence and user engagement.
AWARDS & MILESTONES
System Integration & API Migration
Easybook.com
Migration of the BRF booking platform from legacy, heavy SOAP services to modern, lightweight RESTful APIs. Actively refactored complex backend logic.
Streamlined third-party integrations and minimized system overhead.
Drastically improved overall API response times and connectivity with global partners.
.NET Framework to .NET Core Migration
Bachhoaxanh.com
- ✓Successfully migrated the Bachhoaxanh website from .NET Framework to .NET Core, ensuring stable operation of the entire system.
- ✓Optimized system performance: reduced shopping cart response time from over 2 seconds to under 200ms, significantly enhancing user experience.
- ✓Maintained maximum response time for other website requests at no more than 200ms, enabling smooth and fast website performance.
- ✓Redesigned the system architecture by separating the code into distinct service layers, making management, development, and maintenance easier and more scalable for the future.
- ✓Refactored and reorganized the system's logic structure to ensure clean, maintainable code while preserving all existing business rules as per current requirements.
- ✓Delivered overall performance improvements, strengthening the technical foundation for long-term development and contributing to increased revenue and customer satisfaction.