Senior Java Backend Engineer | Spring Boot | Microservices | Kafka

Senior Backend Engineer (Java) Job Description We are looking for a Senior Backend Engineer (Java) with strong experience in building scalable, high-performance backend services and REST APIs using Java and Spring Boot. The ideal candidate will have hands-on experience developing microservices, event-driven systems, and distributed applications that operate reliably under heavy load. The role involves designing and developing backend services, working with relational databases and caching technologies, implementing event-driven architectures, and optimizing application performance. You will also contribute to CI/CD pipelines, automated testing, code reviews, and software design practices. Key Responsibilities - Design, develop, and maintain high-performance backend services and REST APIs using Java and Spring Boot. - Build and maintain scalable microservices with a focus on reliability, maintainability, and performance. - Develop event-driven architectures and asynchronous processing flows using Kafka or similar streaming platforms. - Design and optimize relational database solutions, including PostgreSQL, with a strong focus on query performance and efficient data handling. - Implement and optimize caching solutions using Redis, Ignite, or similar technologies. - Develop and integrate gRPC services for efficient communication between distributed services. - Design and implement multi-tenant backend services, ensuring appropriate tenant isolation, scalability, and security. - Containerize and deploy services using Docker and Kubernetes. - Contribute to CI/CD pipelines and automated deployment processes. - Write unit, integration, and performance tests to ensure application reliability and quality. - Apply appropriate design patterns, clean code principles, and software engineering best practices. - Participate in code reviews, technical discussions, and architectural decisions. - Perform performance profiling, troubleshooting, and tuning to optimize services under heavy workloads. - Monitor and analyze application performance, database queries, resource utilization, and system bottlenecks. - Collaborate with other engineers and teams to design and deliver reliable distributed systems. Requirements - 5+ years of professional software development experience, with strong hands-on experience in Java. - Strong production experience with Java and Spring Boot. - Proven experience building microservices and REST APIs at scale. - Hands-on experience with Kafka or similar event-streaming platforms. - Strong knowledge of PostgreSQL or other relational databases, including query optimization and database performance. - Experience with Redis, Apache Ignite, or similar caching technologies. - Experience with gRPC and distributed service-to-service communication. - Experience designing multi-tenant applications and services. - Experience with Docker and Kubernetes. - Good understanding of CI/CD practices and deployment automation. - Strong knowledge of unit testing, integration testing, and automated testing practices. - Good understanding of software design patterns, clean code, and SOLID principles. - Experience participating in code reviews and collaborative software development. - Practical experience with performance profiling, load testing, troubleshooting, and application tuning. - Strong understanding of scalable, reliable, and distributed backend architectures. Technical Stack Java | Spring Boot | Microservices | REST APIs | Kafka | PostgreSQL | Redis / Apache Ignite | gRPC | Docker | Kubernetes | CI/CD