Ho Jun Hong
Building scalable applications with Java, Spring Boot, and modern development practices
3+
Years Exp.
About Me
Committed to building high-reliability, scalable backend architectures.
Final-year Bachelor of Management Information Systems (MIS) student with strong interests in backend engineering, enterprise application development, and scalable software architecture. Experienced in designing and developing RESTful APIs using Java 21, Spring Boot, Spring Data JPA, and Hibernate. Demonstrated ability to build full-stack applications from concept to deployment, including Docker containerization, AWS EC2 hosting, database design, API documentation, and automated testing. Developed multiple production-deployed projects involving AI integration, payment systems, cloud deployment, and database management. Strong understanding of software engineering principles including layered architecture, DTO patterns, dependency injection, validation, exception handling, and test-driven quality practices.
Technical Skills
Programming
Backend & Architecture
QA & Testing
Databases
DevOps & Tools
Languages
Testing & Quality Assurance
Committed to Code Reliability Through Comprehensive Testing
SmartSpend AI
Testing Stack
Coverage Philosophy
Reliability Metrics
"JUnit 5, Mockito, MockMvc, H2 Database for service and controller layer testing"
Automation
Full CI/CD Ready
Validation
Strict DTO Checks
Hotel Management System
Testing Stack
Coverage Philosophy
Reliability Metrics
"Testcontainers for integration testing, JaCoCo for code coverage analysis"
Automation
Full CI/CD Ready
Validation
Strict DTO Checks
Featured Projects
SmartSpend AI
Solo Full-Stack Developer • May 2026 - Present
Developed a full-stack expense management platform using Spring Boot and Flutter following layered architecture principles.
Tech Stack
Key Highlights
- Designed and implemented RESTful APIs for transaction management, filtering, validation, and pagination.
- Integrated Google Gemini API to transform natural-language inputs into structured financial records.
- Implemented JWT authentication for secure multi-user account management.
Hotel Management System
Solo Backend Developer • Dec 2025 - April 2026
Developed a hotel management backend supporting reservations, payments, invoicing, and reporting through RESTful APIs.
Tech Stack
Key Highlights
- Designed and implemented 50+ RESTful API endpoints with JWT authentication, role-based access control, request validation, exception handling, and DTO-based API contracts.
- Designed relational database schemas using MySQL and Spring Data JPA.
- Applied layered architecture, validation, exception handling, and automated testing with JUnit and Testcontainers.
Fashion E-Commerce Platform
Full-Stack Developer • Aug 2025 - Nov 2025
Built an e-commerce platform supporting product management, shopping carts, and order processing workflows.
Tech Stack
Key Highlights
- Built an e-commerce platform supporting product management, shopping carts, and order processing workflows.
- Integrated PayPal Sandbox and Bakong KHQR payment gateways.
- Developed administrative dashboards and inventory management features.
Education & Certifications
Bachelor of Management Information Systems (MIS)
SETEC Institute
Available for full-time employment
TOEFL ITP
Demonstrates professional-level English reading, listening, and comprehension capabilities.
HSK Level 6
Demonstrates advanced Chinese language proficiency. Fully capable of understanding highly complex written materials and communicating effectively in diverse professional contexts.
Global Presence & Credentials
Language Proficiency
Vietnamese (Native)
English (Professional Working Proficiency)
Chinese (Intermediate - HSK 6)
Khmer (Professional Working Proficiency)
Certifications
TOEFL ITP
Score: 517
HSK Level 6
Score: 241
Key Strengths
Backend System Development using Java Spring Boot ecosystem
Proactive Self-Learning Ability with production tech stacks
API Architecture & Integration with third-party vendors
Software Testing Mindset prioritizing code reliability
Cloud Deployment & Environment Orchestration with Docker
Technical Documentation with Swagger UI and Markdown
Problem Solving & Debugging with deployment optimization
AI-Assisted Development Productivity with LLM tools
Let's Work Together
I'm always interested in hearing about new opportunities and exciting projects.