I am a Software Engineer with solid experience in Backend Development, specializing in Java-based technologies. I have worked on designing, developing, and maintaining scalable backend systems with a strong focus on performance, reliability, and clean architecture. I am passionate about building robust software solutions, continuously improving system quality, and applying best practices in software engineering.

• Java (Core Java, OOP, Multithreading...)
• Spring Framework (Spring Boot, Spring MVC, Spring Security...)
• RESTful API design and development
• Microservices architecture

• Relational Databases: MySQL, PostgreSQL, Oracle
• ORM: Hibernate, JPA
• Database design & performance optimization

• Git / GitHub / GitLab
• Maven / Gradle
• Docker (basic containerization)
• CI/CD fundamentals

• Clean Code & SOLID principles
• Design Patterns
• Code Review & Refactoring
• Agile / Scrum methodology

• Developed and maintained backend services for enterprise and internal systems
• Designed REST APIs consumed by web and mobile applications
• Improved system performance and stability through optimization and refactoring
• Collaborated closely with frontend developers, QA, and product teams

• Become a highly skilled Backend / Java Engineer
• Deepen expertise in distributed systems and microservices
• Contribute to high-impact, large-scale software products

• Email: Khoaruoi69@gmail.com
• LinkedIn: https://linkedin.com/in/khoa-nguyen-666495297