1.Core Java Development:
- Proficiency in Java (versions 8 and above), including object-oriented programming (OOP), concurrency, and multi-threading.
- Strong understanding of Java collections and data structures (e.g., Lists, Maps, Sets, Stacks, Queues).
- Familiar with Javas memory management, garbage collection, and JVM tuning for performance optimization.
2. Apache Kafka:
- Expertise in building, configuring, and managing Kafka clusters.
- Experience in producing and consuming messages to/from Kafka topics.
- Understanding of Kafka's consumer groups, partitioning, and offset management.
- Experience with Kafka Streams for real-time data processing and Kafka Connect for integrating with external systems.
- Knowledge of Kafka's role in event-driven architecture and stream processing.
3. Data Structures and Algorithms:
- Proficiency in implementing and optimizing algorithms and data structures for performance (e.g., sorting, searching, graph traversal).
- In-depth understanding of time and space complexity (Big O notation) for algorithm optimization.
- Experience working with different data structures like trees, heaps, graphs, hash tables, and arrays to solve complex problems.
4. Microservices Architecture:
- Strong understanding of designing and building scalable, distributed microservices.
- Experience with Spring Boot for creating microservices.
- Knowledge of RESTful APIs and gRPC for communication between services.
- Experience using tools like Spring Cloud, Docker, and Kubernetes for containerization and orchestration.
- Familiarity with service discovery, load balancing, and resilience patterns (e.g., Circuit Breaker, Retry).
- Experience with database technologies like SQL and NoSQL (e.g., MongoDB, Cassandra).
5. Cloud & DevOps:
- Experience working with cloud platforms (e.g., AWS, Azure, GCP).
- Familiarity with CI/CD pipelines, Jenkins, GitLab CI, or similar tools for automated deployment.
- Knowledge of monitoring tools like Prometheus, Grafana, or ELK stack (Elasticsearch, Logstash, Kibana).
- Familiarity with infrastructure as code (e.g., Terraform).
6. Testing & Quality Assurance:
- Experience with unit testing frameworks like JUnit, Mockito, or TestNG.
- Familiarity with integration testing in a microservices environment.
- Strong focus on writing clean, maintainable, and efficient code.
7. Version Control:
- Proficient in using Git for version control, including branching and merging strategies.
Example Role Description:
Position: Java Kafka Developer with Microservices and Data Structures Expertise
Responsibilities:
- Design, develop, and maintain high-performance microservices with a focus on scalability, reliability, and real-time data processing.
- Implement and manage Kafka-based solutions for stream processing, message brokering, and event-driven architectures.
- Develop and optimize algorithms and data structures to ensure high efficiency and performance for distributed systems.
- Collaborate with cross-functional teams to integrate microservices with other systems and databases.
- Write clean, maintainable, and efficient code, ensuring high standards of software engineering best practices.
- Utilize containerization and orchestration tools (Docker, Kubernetes) for deployment and scalability.
- Monitor and troubleshoot performance issues in a production environment.
