Java Developer (Spring Boot, Microservices, Apache Kafka, RabbitMQ, Kubernetes, Temporal, OAuth, Redis, Grafana, ELK Stack)

Responsibilities • Design, develop, and maintain scalable, high-performance Java applications using Java and Spring Boot. • Develop and maintain microservices-based applications using RESTful APIs and event-driven architecture. • Implement secure authentication and authorization using OAuth , JWT, and Spring Security. • Design and optimize database schemas, complex SQL queries, and stored procedures using Oracle and MySQL. • Implement asynchronous processing and event streaming using Apache Kafka and RabbitMQ. • Develop and deploy containerized applications using Docker and Kubernetes. • Build and maintain CI/CD pipelines using Jenkins and GitLab CI/CD. • Implement distributed caching using Redis and optimize application performance. • Develop reliable background workflows and distributed task orchestration using Temporal. • Implement monitoring, logging, and troubleshooting using Elasticsearch, Logstash, Kibana (ELK), and Grafana. • Write unit and integration tests using JUnit and Mockito, ensuring code quality and reliability. • Apply SOLID principles, design patterns, and Domain-Driven Design (DDD) in application development. • Conduct code reviews, troubleshoot production issues, and collaborate with cross-functional teams to deliver reliable software. Requirements • 8+ years of professional experience in Java application development, including experience developing and maintaining production-grade applications. • Strong hands-on experience with Java , Spring Boot, and microservices architecture. • Proven experience designing and developing secure RESTful APIs using Spring Security, OAuth, and JWT. • Strong experience with Apache Kafka and RabbitMQ for event streaming and asynchronous messaging. • Hands-on experience with Docker, Kubernetes, and CI/CD pipeline automation using Jenkins or GitLab CI/CD. • Experience in database including Oracle, MySQL, complex SQL queries, query optimization, and stored procedures. • Practical experience implementing Redis caching and optimizing distributed application performance. • Experience with Temporal or similar workflow orchestration platforms. • Hands-on experience with Elasticsearch, Logstash, Kibana, and Grafana for application monitoring and troubleshooting. • Experience in unit and integration testing using JUnit and Mockito. • Experience in SOLID principles, design patterns, Domain-Driven Design, and distributed systems. • Excellent problem-solving, debugging, communication, and teamwork skills.