Java Developer

This is a remote position. Project Description Cognizant is seeking an experienced Java Full Stack Engineer to design, develop, test, and maintain scalable enterprise applications. The ideal candidate will have strong hands-on experience in Java-based backend development, modern frontend frameworks, REST APIs, database technologies, and cloud-based application environments.

Responsibilities

Design, develop, and maintain full-stack applications using Java and modern frontend technologies. Develop backend services and microservices using Java, Spring Boot, and Spring Framework. Build responsive user interfaces using React or Angular, JavaScript, TypeScript, HTML, and CSS. Design, develop, and integrate RESTful APIs and enterprise application services.

Work with relational and NoSQL databases to develop efficient queries and data-access layers. Implement application security, authentication, authorization, and error-handling mechanisms. Write unit tests, perform integration testing, troubleshoot defects, and improve application performance. Collaborate with architects, business analysts, QA engineers, DevOps engineers, and other developers.

Participate in code reviews, technical design discussions, Agile ceremonies, and continuous improvement activities. Use Git and CI/CD pipelines to support version control, automated builds, testing, and deployments. Support application releases, production troubleshooting, and ongoing maintenance.

Requirements

Mandatory Requirements Strong hands-on experience in Java development and object-oriented programming. Experience with Spring Boot, Spring MVC, and RESTful web services. Experience building frontend applications using React or Angular. Proficiency in JavaScript or TypeScript, HTML, and CSS. Experience developing and integrating APIs and microservices.

Knowledge of SQL and relational databases such as PostgreSQL, Oracle, or MySQL. Experience with unit testing frameworks such as JUnit and Mockito. Familiarity with Git, Agile/Scrum, debugging, and software development best practices.

Preferred Skills

Experience with cloud platforms such as AWS, Azure, or GCP. Exposure to Docker, Kubernetes, Jenkins, or other CI/CD tools. Experience with Kafka or other messaging technologies. Knowledge of NoSQL databases such as MongoDB or DynamoDB. Familiarity with application monitoring, performance tuning, and secure coding practices.

Experience with automated testing and enterprise application deployments.