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.