Hi, I'm Rey.
Full-Stack Web Developer.
Strong Backend Focus.
Engineering robust, scalable applications from database to interface.
Skilled in building scalable REST APIs, designing databases, while also capable of delivering responsive front-end features and Managing server deployments.
My Skills & Expertise
Backend Frameworks
Spring Boot
NodeJs / Express
Frontend Frameworks
ReactJs
VueJs
NextJs
Nuxtjs
Databases
Relational Databases
MySQL
PostgreSQL
Supabase
NoSQL Databases
MongoDB
Firebase
DynamoDB
Cloud & DevOps
EC2
S3
Cognito
Batch
GitHub
Bitbucket
Jira
CICD
Docker
RDS
Fargate
ECR
VPC
Upstash
Load Balancer
Nginx
SSM
Azure DevOps
Projects
Backlog-Buddy (November 2025 - May 2026)
Interact with the client through virtual meetings & feature implementation.
Built dynamic client workflow. Secure multi-tenant architecture with AI orchestration.
AI Blog Generation (August 2025 - Present)
Refactor existing openai api request replace with LangChain4j to handle multi ai providers.
Restructured API orchestration, ensuring robust content generation pipelines.
Map Engine Optimization Report (October 2025 - Present)
Migrate from Openai assistant into Openai responses api due to assistant depreciation, and Implement SSE both frontend and backend for real time data updates. Optimize the performance to use only less ram during the process and Investigating and fixing server configuration issues during deployment.
Enable real-time updates and drastically reduced RAM footprint during processing.
Treasure Keyword Search (May 2025 - Present)
Interact with the client and understand the specifications provided and make a plan and implement the feature. Investigate for third party APIs that the client requested for integration and manage system deployment.
Engineered scalable sraping architecture using Docker and AWS Batch for heavy process as well as background task.
Search Engine Optimization Keyword Monitoring (November 2024 - Present)
Understand the specifications provided, make a plan and implement the feature. Manage the server deployment both staging and production.
Designed end-to-end data pipelines for detailed keyword and site analytic dashboard.
Map Engine Optimization Registration (April 2024 - October 2024)
Interact with the client and understand the specifications provided and make a plan and implement the feature. Investigate for third party APIs that the client requested for integration and manage system deployment.
Engineered scalable scraping architecture using Docker and AWS Batch for heavy process as well as background task.
Japanese Learning (March 2023 - February 2024)
Implement the UI from the design provided by the client, and connect to the backend api and fixes some bugs during the connection.
Manage frontend and backend connections to interact perfectly.