Programming Languages: Java, JavaScript

Frontend: React, Bootstrap, Astro, JQuery

Backend: Express.js, Mongoose, Spring Boot, Spring Data JPA

Blockchain: Hyperledger Fabric

Testing: Mockito, JUnit, Jest, Testcontainers

Databases: MongoDB, MySQL, Redis

Cloud & Infrastructure: Oracle Cloud Infrastructure (OCI), AWS S3, Docker, RabbitMQ

Security: Spring Security, Role-Based Access Control (RBAC)

Tools: GitHub, Bitbucket, Jira