Job Description -

We are looking for an experienced Java AWS Developer to design, develop, and maintain scalable, high-performance backend applications and cloud-native microservices.
The ideal candidate should have strong hands-on experience in Core Java, multithreading, concurrency, Spring Boot, microservices, REST APIs, SQL databases, and AWS. The role involves developing reliable backend services, implementing concurrent processing, integrating messaging systems, supporting CI/CD deployments, and resolving application performance and production issues.

Key Responsibilities:
• Design and develop backend applications using Core Java and Spring Boot.
• Implement multithreading and concurrency for high-volume applications.
• Build scalable microservices and RESTful APIs.
• Deploy, monitor, and support applications on AWS.
• Troubleshoot thread-safety issues, race conditions, deadlocks, and performance bottlenecks.
• Develop persistence layers using Spring Data JPA and Hibernate.
• Work with relational databases such as MySQL, PostgreSQL, or Oracle.




• Implement event-driven communication using Apache Kafka or RabbitMQ.
• Write unit tests using JUnit and Mockito.
• Implement API security using Spring Security, JWT, or OAuth2.
• Support build and deployment pipelines using Git, Maven, Jenkins, and CI/CD tools.
• Perform code reviews and follow clean coding, design patterns, and SOLID principles.
• Collaborate with QA, DevOps, and engineering teams in an Agile workplace.

Mandatory Skills:
• Core Java 8+
• Multithreading and concurrency
• Spring Boot and Spring MVC
• Microservices architecture
• REST API development
• Hands-on AWS experience
• Spring Data JPA and Hibernate
• SQL and relational databases
• Kafka or RabbitMQ
• JUnit and Mockito
• Git, Maven, Jenkins, and CI/CD
• Production support and application troubleshooting

Good-to-Have Skills:
• AWS services such as EC2, ECS/EKS, Lambda, S3, RDS, IAM, CloudWatch, API Gateway, SNS, and SQS
• Docker and Kubernete

📌 Java AWS Developer (Hyderabad)
🏢 Zensar Technologies
📍 Hyderabad