As a freelance Senior Java Backend Developer, I developed microservices-based applications for clients using Java and Spring Boot. I also deployed and maintained applications on AWS, using EC2, S3, and RDS.
I developed secure RESTful APIs and managed MySQL databases, including schema design and query optimization. I worked with clients to gather requirements and deliver projects within agreed timelines.
For my Electronic Health Record platform project, I developed microservices for patient, doctor, appointment, prescription, laboratory, and notification modules. I used Redis and RabbitMQ, containerized services with Docker, and deployed them on Kubernetes.
My other projects include a messenger application with direct and group chat, an online exam portal, a banking core platform, and a logistics and supply chain management platform. Across these projects, I worked with technologies including Spring Boot, JWT, Kafka, PostgreSQL, and AWS.
