Java Full Stack Developer

Java Full Stack Developer with Testing Experience

This is a contract position: Client: Cognizant Location: Chennai, India Shift: IST Contract tenure: min. 1 year

Job Summary

We are looking for an experienced Java Full Stack Developer with strong testing experience

to design, develop, test, and maintain scalable enterprise applications. The ideal candidate

should have hands-on expertise in Java/Spring Boot, modern front-end technologies, REST

APIs, databases, and automated testing.

Key Responsibilities

• Design, develop, and maintain full-stack applications using Java and Spring Boot.
• Develop responsive and user-friendly front-end applications using Angular or React.
• Build and integrate RESTful APIs and microservices. - Write clean, scalable, reusable, and maintainable code.
• Develop and execute unit, integration, functional, and regression tests.
• Create and maintain automated test scripts using Selenium, JUnit, TestNG, or similar frameworks.
• Perform API testing using tools such as Postman or REST Assured.
• Identify, troubleshoot, and resolve application defects and performance issues.
• Participate in code reviews, technical discussions, and Agile/Scrum ceremonies.
• Work closely with QA, product, DevOps, and business teams to ensure high-quality releases.
• Support CI/CD pipelines and integrate automated testing into the development lifecycle. - Analyze production issues and provide timely fixes and root-cause analysis.

Required Skills

• 6+ years of experience in Java Full Stack Development.
• Strong hands-on experience with Java 8/11/17+.
• trong hands-on experience with Spring Boot, Spring MVC, and Spring Security.
• Strong understanding of microservices architecture and REST APIs.
• Front-end development experience with Angular or React. - Strong knowledge of HTML5, CSS3, JavaScript, and TypeScript.
• Experience with SQL and relational databases such as Oracle, PostgreSQL, or MySQL.
• Strong testing experience with JUnit, TestNG, Selenium, REST Assured, Postman, and
• automated functional and regression testing.
• Experience with Git, Maven/Gradle, Jenkins, or similar CI/CD tools.
• Good understanding of Agile/Scrum methodologies.
• Strong debugging, problem-solving, and communication skills.

Preferred Skills

• Experience with AWS, Azure, or GCP.
• Knowledge of Docker and Kubernetes.
• Experience with Kafka or other messaging platforms.
• Familiarity with SonarQube, Splunk, Dynatrace, or similar monitoring tools.
• Experience working with BDD frameworks such as Cucumber.
• Understanding of performance and security testing.

Ideal Candidate

A strong hands-on full-stack engineer who can independently handle development as well as testing activities and is comfortable working across the entire application lifecycle - from requirements and development through automation, deployment, and production support.