Java Developer with Kafka

Cognizant Technology Solutions Corporation; Bengaluru; Hybrid; INR 2,500,000 - 4,000,000; Full time

Job summary

Cognizant in Bengaluru is seeking an experienced Java Developer with strong Apache Kafka expertise to design, develop, and maintain scalable, high-performance distributed applications. The role emphasizes Java backend development, microservices, and real-time data streaming.

You will build and optimize microservices with Spring Boot, create Kafka producers and consumers, and contribute to CI/CD and fault tolerance efforts while collaborating with architects, DevOps, and QA teams.

Qualifications

• 6+ years of experience in Java development.
• Strong proficiency in Java 8/11/17.
• Hands-on experience with Apache Kafka.
• Strong experience in Spring Boot, Spring MVC, Spring Data JPA.
• Experience with Microservices Architecture.
• Good knowledge of Kafka topics, partitions, consumer groups, replication, and offset management.
• Experience with REST APIs and JSON/XML processing.
• Strong understanding of multithreading and concurrency.
• Experience with relational databases such as Oracle, PostgreSQL, MySQL, or SQL Server.
• Knowledge of Maven/Gradle build tools.
• Experience with Git version control.

Responsibilities

• Design, develop, and maintain enterprise-grade applications using Java and related technologies.
• Develop and implement scalable microservices using Spring Boot.
• Design and build event-driven architectures using Apache Kafka.
• Create Kafka producers, consumers, topics, partitions, and stream processing applications.
• Optimize Kafka performance, scalability, and fault tolerance.
• Develop RESTful APIs and integrate with third-party services.
• Collaborate with cross-functional teams including architects, DevOps, QA, and business stakeholders.
• Participate in code reviews and ensure adherence to coding standards and best practices.
• Troubleshoot production issues and perform root cause analysis.
• Contribute to CI/CD pipeline implementation and deployment automation.

Skills

Java

Distributed systems

Multithreading

REST APIs

Communication

Education

Bachelor's degree in Computer Science / Information Technology

Tools

Apache Kafka

Spring Boot

Spring MVC

Spring Data JPA

Git

Maven/Gradle

SQL databases

Docker

Kubernetes

Job description

Job Summary

We are seeking an experienced Java Developer with strong Apache Kafka expertise to design, develop, and maintain scalable, high-performance distributed applications. The ideal candidate should have extensive experience in Java-based backend development, microservices architecture, event-driven systems, and real-time data streaming using Kafka.

Key Responsibilities

• Design, develop, and maintain enterprise-grade applications using Java and related technologies.
• Develop and implement scalable microservices using Spring Boot.
• Design and build event-driven architectures using Apache Kafka.
• Create Kafka producers, consumers, topics, partitions, and stream processing applications.
• Optimize Kafka performance, scalability, and fault tolerance.
• Develop RESTful APIs and integrate with third-party services.
• Collaborate with cross-functional teams including architects, DevOps, QA, and business stakeholders.
• Participate in code reviews and ensure adherence to coding standards and best practices.
• Troubleshoot production issues and perform root cause analysis.
• Contribute to CI/CD pipeline implementation and deployment automation.

Required Skills

• 6+ years of experience in Java development.
• Strong proficiency in Java 8/11/17.
• Hands-on experience with Apache Kafka.
• Strong experience in Spring Boot, Spring MVC, Spring Data JPA.
• Experience with Microservices Architecture.
• Good knowledge of Kafka topics, partitions, consumer groups, replication, and offset management.
• Experience with REST APIs and JSON/XML processing.
• Strong understanding of multithreading and concurrency.
• Experience with relational databases such as Oracle, PostgreSQL, MySQL, or SQL Server.
• Knowledge of Maven/Gradle build tools.
• Experience with Git version control.

Preferred Skills

• Kafka Streams or Kafka Connect.
• Docker and Kubernetes.
• Cloud platforms (AWS, Azure, or GCP).
• Elasticsearch, Redis, or MongoDB.
• CI/CD tools such as Jenkins, GitHub Actions, or Azure DevOps.
• Monitoring tools like Prometheus, Grafana, Splunk, or ELK Stack.

Required Qualifications

• Bachelor's degree in Computer Science, Information Technology, or related field.
• Strong analytical and problem-solving skills.
• Excellent communication and stakeholder management skills.