Keagan Ha is a Java Developer with 5 years of experience in building and maintaining robust applications. With technical expertise in Java, HTML/CSS, and front-end frameworks like Vue.js, he has a strong background in working with various databases, including MySQL, PostgreSQL, Oracle, and MongoDB. This allows him to manage data effectively and ensure seamless integration. In addition to his Java skills, Keagan is proficient in Python, which enhances his versatility in tackling diverse development tasks. He is committed to delivering high-quality code and continuously improves his skill set to stay current with industry trends. His collaborative approach and problem-solving mindset enable him to contribute effectively to team projects and deliver exceptional results.
Project list
UI Development Project
2019 - 2020
This project involved contributing to the development and testing of user interfaces over a period starting October 2019.
Designed UI as per requirements.
Wrote services with mentor support using Java.
Wrote unit tests for each screen using JUnit.
Collaborated in a team of 7 members.
Technologies: Java, Spring Boot, MS SQL Server, JUnit, Thymeleaf
Shopee Customer Service System
2020 - 2020
Developed a comprehensive system for customer service operations.
Designed and built UI using Vue and CSS
Built back-end APIs using Spring Boot
Worked collaboratively in a team of 7 members
Technologies: Spring Boot, Vue, SQL
Lazada Customer Support System
2020 - 2021
Developed a comprehensive system to enhance customer support services.
Designed and built UI using Vue and CSS
Built back-end APIs using Spring Boot
Collaborated as part of a 5-member team
Technologies: Spring Boot, Vue, SQL
Employee Management System
2021 - 2024
Designed and implemented a comprehensive system for managing employee records and information.
Built a system to manage employees.
Worked collaboratively in a team of 4 members.
Technologies: Spring Boot, Thymeleaf, SQL
Olympic COVID Testing System
2021 - 2021
Developed a system for COVID testing during the Tokyo 2020 Olympics to ensure the safety and efficiency of the event.
Built a system for COVID testing.
Worked in a team of 5 members.
Technologies: Java 8, Spring Boot, Thymeleaf, HTML, CSS, PostgreSQL
S-CARE Insurance Management System
2021 - 2021
Designed and developed a comprehensive insurance management system to streamline processes.
Developed the insurance management system.
Collaborated effectively within a team of 5 members.
Technologies: Java
File Transfer Management System (PAN)
2021 - 2022
Designed and implemented a robust system for managing file transfers efficiently.
Built a file transfer management system.
Worked in a team of 5 members.
Technologies: Java 11, Spring Boot, Thymeleaf, SQL
Kagoshima Medical Testing System
2022 - 2022
Created and implemented an advanced system for medical testing.
Built a medical testing system.
Worked in a team of 15 members.
Technologies: Java 8, Spring Boot, Vue, SQL
Ajisai Management System
2022 - 2022
Developed a comprehensive management system catering to both users and hospitals, enhancing operational efficiency and user experience.
Developed the user and hospital management system.
Collaborated effectively in a team of 5 members.
Technologies: Java 8, Spring Boot, Angular, SQL
File Conversion System
2022 - 2023
Created a system to convert files between different formats.
Built a file converting system.
Worked in a team of 5 members.
Technologies: Java 11, Spring Boot, Thymeleaf, SQL
Microorganism Analysis System
2023 - 2023
Designed and implemented a system for analyzing microorganisms.
Built a microorganism analysis system.
Worked collaboratively in a team of 6 members.
Technologies: Python 3, FastAPI, SQL
Feature Management Microservice
2023 - 2024
Designed and developed a microservice dedicated to managing features within the MB Biz system to enhance operational functionality and scalability.
Built a microservice for feature management
Worked collaboratively in a team of 15 members
Technologies: Spring Boot, Oracle, MongoDB
Rating Management Microservice
2023 - 2024
Contributed to the development of a microservice for managing ratings within the MB Biz system.
Built a microservice for rating management
Worked collaboratively in a team of 15 members
Technologies: Spring Boot, Oracle, MongoDB
Voucher Management Microservice
2023 - 2024
Designed and implemented a microservice for the efficient management of vouchers within the MB Biz system.
Built microservice for voucher management
Worked in a team of 20 members
Technologies: Spring Boot, Oracle, MongoDB
Campaign Management Microservices
2023 - 2024
Developed a set of microservices tailored for managing campaigns within the MB Biz system.
Built microservices for campaign management
Worked in a team of 20 members
Technologies: Spring Boot, Oracle, MongoDB
Loyalty Points-Based Mobile Top-Up
2023 - 2024
Enhanced the mobile top-up experience by integrating the use of loyalty points within the MB Biz system.
Developed and improved the mobile top-up process
Worked in a team of 20 members
Technologies: Spring Boot, Oracle, MongoDB, Redis
Education
HANOI UNIVERSITY
2016 - 2020
Information technology
Expertise
Databases
SQL, PostgreSQL, MS SQL, MySQL, MongoDB, Oracle, Redis