Udemy

Comprehensive Java programming from fundamentals to advanced OOP, collections, streams, and multithreading.

ID: UC-XXXXX

Coursera

Building production-grade Spring Boot applications, REST APIs, Spring Security, and microservice fundamentals.

ID: COURSE-XXXXX

Udemy

MERN stack development covering React, Node.js, Express, and MongoDB from scratch to deployment.

ID: UC-YYYYY

Amazon Web Services

Foundational understanding of AWS cloud services, infrastructure, security, and pricing.

ID: AWS-YYYYY