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Hi, I'm Ly Van Quang Trung (DaeMyn)

Building scalable full-stack applications with Java & Next.js

Years Exp.
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Certificates
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Ho Chi Minh City, Vietnam
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Introduction

About Me

Get to know a little more about who I am and what I do.

Ly Van Quang Trung

Ly Van Quang Trung

Software Engineer

A result-oriented Software Engineer with over five years of hands-on experience in the IT industry. Holding 8 internationally recognized certifications from Oracle and Linux Professional Institute, I specialize in building scalable, high-quality software solutions. My career has spanned roles from Back-end Developer to Full-stack Developer, and I am currently working as a DevOps Engineer at mgm Technology Partners โ€” a leading German IT company. I have collaborated with cross-functional teams across multiple countries, delivering production-grade systems for clients in Japan, Switzerland, and Germany.

Ho Chi Minh City, Vietnam

๐ŸŒLanguage Journey

As an extroverted person, I have always been passionate about connecting with people from different cultures. Through traveling, working internationally, and attending global events, I have met and made friends with people from over 50 countries around the world. English has been my primary tool for global communication โ€” from daily work with international clients to building friendships across continents. I also speak French at a conversational level, which I picked up through self-study and cultural exchange.

View full language profile โ†’
๐Ÿ‡ฌ๐Ÿ‡งEnglish
๐Ÿ‡ซ๐Ÿ‡ทFrench

๐ŸŽนPiano Journey

Beyond coding, music is my creative outlet. I have been teaching myself piano, exploring everything from classical pieces to modern compositions. Playing piano helps me stay focused, develop patience, and find balance between the analytical and creative sides of my mind โ€” skills that translate directly into better problem-solving as an engineer.

View piano journey โ†’
๐ŸŽนPiano
Tech Stack

Skills &Technologies

Technologies and tools I use to bring ideas to life

Java
Spring Boot
Spring Security
REST APIs
JUnit / Mockito
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Technologies
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Categories
Portfolio

Personal Projects

A selection of projects I've worked on. Featured projects are highlighted.

0+Projects
0+Technologies
0+Featured
My Portfolio & CMS
Featured

My Portfolio & CMS

Full-stack personal portfolio with an admin CMS dashboard. Next.js 14 App Router + Spring Boot 3 backend, PostgreSQL on Neon, JWT auth (httpOnly cookie), Framer Motion animations, dark/light mode, and a full CI/CD pipeline via GitHub Actions โ†’ Vercel + Render.

Next.js 14Spring Boot 3PostgreSQLTailwind CSS+2
Shop Spring Boot Admin
Featured

Shop Spring Boot Admin

Full-stack e-commerce web application with a Spring Boot MVC backend and admin dashboard. Features product, category, order, employee, and customer management. Includes Spring Security authentication, Liquibase database migrations, and Thymeleaf templating.

Spring BootSpring SecurityLiquibaseThymeleaf+2
Diet & Nutrition Tracker App

Diet & Nutrition Tracker App

Android mobile application for daily diet and calorie tracking. Built with Java and Gradle for Android. Features daily meal logging, nutrition breakdown, custom fonts, and an intuitive UI for tracking health goals.

JavaAndroidGradleSQLite
Career Journey

Work Experience

My professional journey across companies and projects

FPT Software

FPT SoftwareCurrent

Jan 2024 โ€” Present2y 3m1 project
Enterprise Microservices PlatformActive

Software Engineer

Jan 2024 โ€” Present
Java 21Spring Boot 3PostgreSQLRedisDockerREST APIJUnit 5MockitoAgile/Scrum

Develop and maintain enterprise Java Spring Boot microservices for large-scale B2B clients in the financial and logistics sectors.

Enterprise PortalJan 2024 โ€“ Jun 20248 members
  • Built and maintained RESTful APIs consumed by web & mobile apps (10k+ DAU)
  • Optimised slow SQL queries and indexes, reducing average response time by 40%
  • Wrote unit and integration tests (JUnit 5 + Mockito), raising coverage from 45% to 78%
Microservices MigrationJul 2024 โ€“ Present12 members
  • Participated in decomposing a monolith into 6 Spring Boot microservices
  • Implemented JWT-based auth service shared across all services
  • Collaborated with teams in Vietnam, Japan, and Singapore in Agile sprints
  • On-call production support: resolved 3 P1 incidents with RCA documentation
Hybrid Technologies

Hybrid Technologies

Jul 2022 โ€” Dec 20231y 5m1 project
B2B SaaS Platform

Junior Software Engineer

Jul 2022 โ€” Dec 2023
ReactTypeScriptNode.jsExpressPostgreSQLDockerGitHub ActionsTailwind CSS

Build and ship full-stack features for a B2B SaaS product used by 200+ companies across Southeast Asia.

SaaS Platform v2Jul 2022 โ€“ Apr 20236 members
  • Implemented 15+ full-stack features across React frontend and Node.js backend
  • Designed PostgreSQL schemas and wrote migration scripts for 4 new modules
  • Reduced frontend bundle size by 25% via code-splitting and lazy loading
DevOps & ToolingMay 2023 โ€“ Dec 20234 members
  • Built CI/CD pipelines with GitHub Actions and multi-stage Docker builds
  • Cut deployment time from 25 minutes to 8 minutes via pipeline optimisation
  • Mentored 2 junior interns on Git workflow, code review, and testing practices
Freelance

Freelance

Jun 2021 โ€” Jun 20221y1 project
Client Web Applications

Full-Stack Developer

Jun 2021 โ€” Jun 2022
PHPLaravelVue.jsMySQLPayPal APIVNPayNginxUbuntu VPS

Deliver full-stack web applications for small businesses in Vietnam โ€” on time, on budget, and built to last.

Client ProjectsJun 2021 โ€“ Jun 20221 members
  • Delivered 5 production web applications for retail, food & beverage, and service clients
  • Built e-commerce stores with shopping cart, order management, and VNPay/PayPal checkout
  • Set up Linux VPS hosting (Nginx + MySQL) with SSL and automated backups
  • Provided ongoing maintenance, performance tuning, and SEO optimisation
Academic Background

My Education

My academic background and qualifications

Bachelor of Engineering in Information Technology

University of Information Technology (UIT)

Sep 2018 โ€” Jun 2022

Specialised in Software Engineering. Coursework included Data Structures & Algorithms, Database Systems, Operating Systems, Computer Networks, and Software Architecture. Final thesis: Real-time chat application using Spring Boot and WebSocket (Grade: 9.2/10).

Certifications

My Credentials

Professional certifications and credentials I have earned.

0 Certifications0 OrganizationsAll Verified
Oracle Corporation
Oracle Corporation

Oracle Certified Professional: Java SE 17 Developer

Issued Jun 2024
No Expiry

ID: OCP-JAVA17-001

View Credential
Oracle Corporation
Oracle Corporation

Oracle Certified Associate: Java SE 8 Programmer

Issued Mar 2023
No Expiry

ID: OCA-JAVA8-001

View Credential
Linux Professional Institute
Linux Professional Institute

LPI Linux Essentials (010-160)

Issued Aug 2023
No Expiry

ID: LPI-LE-001

View Credential
Linux Professional Institute
Linux Professional Institute

LPI Web Development Essentials (030-100)

Issued Jan 2024
No Expiry

ID: LPI-WDE-001

View Credential
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Kind Words

Client Testimonials

What others have to say about working with me

Best performance employee of business unit R17 - FPT Software year 2022. Recognized for outstanding technical contributions and dedication to project delivery.

FPT Software Da Nang

FPT Software Da Nang

Business Unit R17

Top 2 Fsofter achieved the most international certificates at FPT Software Danang in 2022. Demonstrated exceptional commitment to continuous learning and professional development.

FPT Software Da Nang

FPT Software Da Nang

Certification Achievement

Successfully delivered the NOVA E-learning platform for Nova Holdings (Japan) - a comprehensive English teaching application serving thousands of students. Led backend development using Java Spring Boot, implemented RESTful APIs, integrated payment systems, and ensured high availability.

Hybrid Technologies

Hybrid Technologies

Outstanding Project - NOVA E-learning

Contact

Get In Touch

Have a question or want to work together? Drop me a message and I'll get back to you as soon as possible.

Let's Build Something Great

I'm always interested in hearing about new projects and opportunities. Whether you have a question or just want to say hi, feel free to reach out!

Location

Ho Chi Minh City, Vietnam

Available for freelance work

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