Java developer

Java Developer – Job Description

Job title

Java Developer

Location

Hyderabad / India

Experience

0–3 years (sample JD)

1. Job Summary

We are looking for a Java Developer to design, develop, test, and maintain Java-based applications. The candidate should have a good understanding of Core Java, object-oriented programming (OOP), SQL, and Spring Boot.

2. Roles and Responsibilities

• Develop and maintain applications using Java.
• Write clean, reusable, and efficient code.
• Work with Core Java, OOP concepts, Collections, and Exception Handling.
• Develop REST APIs using Spring Boot.
• Integrate applications with databases such as MySQL or PostgreSQL.
• Perform unit testing and debugging.
• Use Git for version control.
• Collaborate with developers, testers, and business teams.
• Fix bugs and improve application performance.

3. Required Technical Skills

Skill

Requirements

Programming

Core Java, OOP

Java concepts

Collections, Exception Handling, Multithreading

Frameworks

Spring, Spring Boot, Hibernate

Database

SQL, MySQL

APIs

REST API, JSON

Tools

Git, Maven, Postman

Testing

JUnit, Mockito basics

4. Eligibility

• Bachelor's degree in Computer Science, IT, or a related field, or equivalent skills.
• Knowledge of Java programming and SQL.
• Good problem-solving and communication skills.
• Freshers with relevant project experience may apply for entry-level roles.

5. Interview Preparation Topics

• Java basics and OOP concepts
• String, arrays, and Collections
• Exception Handling and Multithreading
• Java 8 features: Lambda expressions and Streams
• SQL queries and joins
• Spring Boot and dependency injection
• REST API development
• Coding problems and project explanation