2026-Present

• Placed as Fullstack Developer to manage, maintain, and enhance client core enterprise applications built with legacy Java (Java 6) and Vaadin framwork
• Developed new business functionalities and updated existing features, including inpurt field validations, backend business logic, and interface enhancements
• Constructed and optimized complex SQL queries to ensure smooth data retrieval and processing on IBM DB2 database
Java 6
Java EE
Vaadin
DB2
Docker

2025-2026

• Developed core modules using Spring Boot and Vue.js to digitalize manual recording processes, resulting in a 20% reduction in operational errors.
• Strengthened process transparency by designing and implementing an automated approval workflow system to ensure authorized critical actions.
• Optimized application performance by 10% through caching strategies, backend code refinement, and PostgreSQL query tuning.
• Enhanced system stability by diagnosing and resolving full-stack bottlenecks across frontend, backend, and database layers using Betterstack.
Java 17
Spring Boot
Vue.js
PostgreSQL
Betterstack
Golang
Docker

2024-2025

• Spearheaded the development of Purchase Requisition and Production Monitoring systems using Spring Boot and React to replace inflexible legacy modules.
• Achieved a 50% increase in operational efficiency by streamlining budgeting and inventory processes through structured, system-driven validation.
• Streamlined development operations by implementing GitLab CI/CD pipelines, resulting in a 30% reduction in deployment time.
• Engineered robust system architectures, implemented RESTful APIs, and designed PostgreSQL data models.
Spring Boot
React
PostgreSQL
GitLab CI/CD
Docker

2023-2024

• Spearheaded the modernization of legacy Oracle ADF 11g applications, migrating them to modern web and desktop platforms using Spring Boot and frontend technologies.
• Enhanced system responsiveness by optimizing complex SQL queries (JOINS and UNIONs) to significantly reduce execution time.
• Improved long-term maintainability by refactoring legacy codebases, modularizing components, and applying Clean Code principles.
Spring Boot
jQuery
Oracle ADF
Oracle Database
.NET

2021-2022

• Developed a high-performance smart home mobile application using Flutter, enabling intuitive control over various IoT devices.
• Integrated complex IoT communication protocols and REST APIs to enhance system responsiveness and user experience.
• Implemented real-time device status monitoring and automated routines to streamline user interaction.
Flutter
Firebase
REST API