Core Java

Key Responsibilities:

1. Core Java Development:

• Develop and maintain high-performance Java applications and services using Core Java and J2EE technologies.
• Write clean, reusable, and efficient code adhering to best practices and design patterns.
• Implement multithreading, concurrency, and asynchronous programming to build scalable and high-performance solutions.
• Work with frameworks like Spring, Spring Boot, and Hibernate to implement business logic and enhance application functionality.

1. Database Integration:

• Design, implement, and optimize database queries and interactions using JDBC, ORM (Hibernate), or JPA.
• Collaborate with database administrators and other developers to design optimal SQL queries and ensure data integrity.
• Integrate and maintain relational databases (e.g., MySQL, PostgreSQL, Oracle) or NoSQL databases (e.g., MongoDB).

1. Application Optimization and Troubleshooting:

• Perform code profiling, performance tuning, and debugging to ensure applications run efficiently.
• Analyze and troubleshoot production issues, bugs, and system failures, providing timely fixes and preventive measures.
• Conduct unit testing, integration testing, and ensure code quality through code reviews.

1. API Development and Integration:

• Design and implement RESTful APIs to connect frontend applications with backend services.
• Ensure proper integration of third-party APIs and services to enhance application features and functionality.
• Use JSON, XML, and other data formats for API communication.

1. Agile Development & Collaboration:

• Participate in Agile Scrum ceremonies including daily stand-ups, sprint planning, and retrospectives.
• Collaborate with cross-functional teams including front-end developers, QA engineers, and business analysts to design and implement features.
• Contribute to continuous integration and continuous deployment (CI/CD) pipelines and DevOps practices.

1. Code Quality & Documentation:

• Follow coding standards and best practices to write clean, maintainable, and testable code.
• Write detailed technical documentation for code, APIs, and system configurations.
• Participate in regular code reviews, ensuring quality and consistency across the team.

1. Security and Compliance:

• Implement security best practices in application development, including input validation, authentication, and authorization.
• Ensure applications comply with relevant industry standards and regulatory requirements.

1. Learning & Innovation:

• Stay up-to-date with latest trends and technologies in the Java ecosystem and software development.
• Continuously improve your skills and share knowledge with the team, encouraging innovation and best practices.

Required Qualifications:

• 2-5 years of experience in Core Java development.
• Proficiency in Java 8 or newer features, including Streams, Lambda Expressions, and Collectors.
• Strong knowledge of OOP (Object-Oriented Programming) concepts and design patterns like Singleton, Factory, Observer, etc.
• Experience working with Spring Framework (Spring Boot, Spring MVC, Spring Security) and Hibernate or JPA.
• Solid understanding of multithreading and concurrency concepts in Java.
• Experience with SQL and relational databases (e.g., MySQL, PostgreSQL, Oracle).
• Knowledge of RESTful API development, including JSON and XML communication.
• Familiarity with version control tools like Git and SVN.
• Experience with unit testing frameworks (e.g., JUnit, Mockito).
• Strong problem-solving skills and debugging abilities.
• Excellent communication and collaboration skills.