Derek Gan

Hi, I am

Derek.

I create apps and digital solutions.

Writing code is my passion, as coding makes the world full of compassion 💕
Jokes aside, I love exploring different areas, currently focusing on Mobile App, Flutter and Quality Assurance.
My goal by 2027 is to build a Super Mobile App that can benefit thousands of university students in Malaysia. Stay tuned!

Contact me

01. About Me

Hi there! I am Derek. I started to learn my first programming language – Python when I was 19 years old. Since then, I am obsessed with it and I could't help delving deeper into the realm of programming. After that, I have been involving myself in different areas of tech including Artificial Intelligence, Data Science, Software Development, Quality Assurance and so on.

Fast-forward to today, I have built various projects and published numerous articles related to Computer Science.

Here are a few technologies I've been working with recently:

Scikit-learn, TensorFlow, PyTorch, OpenCV
Flutter, Dart, Firebase
MERN - MongoDB, Express, React, Node.js
JavaFX, SceneBuilder

02. Where I've Worked

Full Stack Development Intern @ DynaFront Systems Malaysia

March 2023 - October 2023

J2EE Web Application Development: Actively involved in the enhancement, and maintenance of J2EE web applications deployed on Apache Tomcat.
REST API Design and Integration: Designed and implemented REST APIs using Spring Boot to facilitate seamless communication between backend services and Microsoft SQL Server. Leveraged Hibernate ORM for efficient data persistence, mapping Java objects to SQL Server tables, and simplifying database operations. Developed controllers and services to handle HTTP requests, process data, and return JSON responses for client applications. Thoroughly tested all APIs using Postman to ensure performance, accuracy, and reliability under various scenarios.
Mobile Application Development: Built and maintained a cross-platform mobile application using Flutter, enabling support for multiple languages, and integrating the REST APIs developed with Spring Boot to enable real-time data exchange in JSON format, providing a smooth and responsive user experience across both iOS and Android platforms.
SQL Development and Debugging: Developed and debugged complex SQL statements for data manipulation and queries purposes from IBM DB2 database using DBeaver. Assisted in troubleshooting and optimising slow-performing SQL queries to enhance the smooth running of web applications and backend processes.
Legacy System Revamping: Played a key role in migrating an existing legacy system built on the Apache Struts framework to the modern Spring Framework. Re-engineered backend services using Spring MVC for better maintainability and flexibility. Employed SQL for backend data operations, Thymeleaf for server-side rendering of dynamic HTML templates, and integrated Vue.js for building dynamic, reactive user interfaces that interacted seamlessly with the backend.
Software Testing and Quality Assurance: Collaborated with the Quality Assurance team to design and implement comprehensive testing strategies, ensuring the reliability and stability of all application components. Actively participated in automation testing using Selenium IDE for automated browser testing along with reporting all the test results and issues systematically in Redmine, helping prioritise bug fixes and track resolution progress.