Leng
Hongmeng
IT Instructor · Software Engineer
Software Engineer and IT Instructor specializing in scalable backend systems with Java and Spring Boot. Passionate about clean architecture and technical mentorship.
Skills & Stack
Technologies I use to design, build, and ship production-ready systems.
Experiences
- Current Role
IT Instructor
Jan 2024 – PresentKorea Software HRD Center (KSHRD)·Phnom Penh
Deliver training in Java Programming and Spring Boot, and mentor students through real-world, project-based learning experiences.
- Deliver training in Java Programming (OOP, Collections Framework, Stream API, Multithreading, JDBC, and Design Patterns), equipping students with strong software engineering fundamentals and problem-solving skills.
- Teach Spring Boot and Spring Cloud Microservices, covering RESTful API development, Spring Data JPA, Spring Security, API Gateway, Service Discovery (Eureka), Config Server, Circuit Breaker, Distributed Tracing, and inter-service communication.
- Lead project-based learning activities, helping students apply software engineering concepts to real-world business requirements.
- Mentor student teams in collaborative projects with industry partners, including KOSIGN and Hunesion company, providing technical guidance throughout the software development lifecycle.
Software Expert Training Program
Feb 2023 – Dec 2023Korea Software HRD Center (KSHRD)·Phnom Penh
1,566-hour intensive program covering full-stack Java development and Hyperledger Fabric blockchain technology.
Basic Course:(February, 01st – July, 20th 2023, Mon-Fri, 7.5 hours per day, 870 hours)- JAVA: J2SE (Basic Java and OOP concepts), J2EE (MVC pattern)
- WEB: HTML, CSS, JavaScript, CSS FlexBox, Bootstrap 4, ReactJS, JSON
- SPRING: Spring Boot, MyBatis Data Access, Spring RESTful Web Service, Spring Security, JSON Web Token, Thymeleaf Engine
- Database: Data Modeling, PostgreSQL, SQL (Basic SQL, Advanced SQL)
Advanced Course:(July, 31st – December, 07th 2023, Mon-Fri, 7.5 hours per day, 696 hours)- Blockchain: Completed blockchain course focusing on Distributed Ledger Technology and decentralized networks via Hyperledger Fabric. Gained technical proficiency in Linux, Docker containerization, CouchDB NoSQL management, and backend development utilizing Spring Boot for RESTful APIs and Golang for Smart Contract (Chaincode) lifecycles. Additionally, acquired hands-on experience in securing blockchain environments, generating cryptographic materials, and maintaining fault tolerance using Raft consensus and Hyperledger Explorer.
Web Developer
Oct 2021 – Nov 2022CheckInMe·Phnom Penh
Implemented and maintained frontend and backend features for a client portal and admin web portal.
- Implemented and enhanced functionalities within the Client Portal to support business processes.
- Developed and maintained frontend and backend features for an early-stage Admin Web Portal using PHP, Laravel, and MySQL.
- Collaborated in the customization and feature implementation to meet the operational requirements of Preah Kossamak Hospital.
My Projects
- Open Source
My GitHub
All my personal projects live here — explore my repositories covering backend systems, APIs, and more.
- Healthcare
Dental Clinic CMS
Built a Customer Management System for a dental hospital to manage patient profiles, contact information, appointment scheduling, and treatment records. Designed for clinic staff to streamline daily operations and improve patient care workflows.
- Infrastructure
Private Blockchain Network Setup
Configured and deployed a private Hyperledger Fabric network with multiple organizations, channels, and peers. Set up crypto materials, Raft consensus ordering service, CouchDB state database, and Hyperledger Explorer for monitoring.
About Me
Software Engineer and IT Instructor with experience in software development and technical mentorship, specializing in Java, Spring Boot, and backend system development. At the Korea Software HRD Center, I mentor and guide aspiring students through real-world partner projects, supporting them in requirements analysis, system design, implementation, testing, and deployment. Passionate about fostering technical excellence, continuous learning, and bridging the gap between academic knowledge and industry expectations through hands-on, project-based learning.
Bachelor's Degree of Software Development
Norton University of Cambodia
2+ Years IT Instructor
KSHRD · Java, Spring Boot & Cloud
4+ Years Software Development
Full-Stack · Backend · System Design
Backend Specialist
Microservices · REST APIs · Docker
Blockchain Instructor
Hyperledger Fabric & Smart Contracts
Education
- Degree
Bachelor's Degree of Software Development
Norton University (NU)
Software EngineeringAlgorithmsFull-Stack DevOOPData StructuresPhnom Penh, Cambodia2019 – 2023 - Training
Software Expert Training
Korea Software HRD Center (KSHRD)
JavaSpring BootReactJSPostgreSQLHyperledger FabricDockerPhnom Penh, Cambodia2023 - Foundation
2 Months C & C++ Training
Engineering of Technology and Electronic Center (ETEC)
CC++Memory ManagementSystems ProgrammingPhnom Penh, Cambodia2019 – 2020
Get in Touch
Let's build
something great.
“The best way to predict the future is to invent it together.”
— Alan Kay