Java Developer
Infosys Bengaluru East, Karnataka, India
Job Description
"Unlock the doors to a lucrative career as a Java Developer at Infosys, where you'll have the opportunity to design, develop, and maintain scalable applications that drive business growth."
As a Java Developer at Infosys, you'll be at the forefront of developing cutting-edge applications that transform businesses. With a strong focus on Core Java and Python (OpenSystems), you'll have the expertise to tackle complex projects and deliver high-quality results.
Whether you're a seasoned professional or just starting your journey, this role offers a wealth of opportunities for growth and development. You'll work with cross-functional teams to understand business requirements, build APIs/services, and integrate backend systems, all while adhering to SDLC processes and best practices.
Why you should learn this:
The demand for skilled Java Developers is on the rise, with a projected growth rate of 15% in the next 5 years, making it an ideal career choice for those looking for job stability and growth.
Expected Salary: $80,000 - $120,000 per annum, depending on experience and location, making it one of the most lucrative career options in the tech industry.
How it works:
- Step 1: Develop a solid understanding of Core Java and Python (OpenSystems), including OOP concepts, APIs/microservices, database integration, and SDLC processes.
- Step 2: Collaborate with cross-functional teams to understand business requirements and build APIs/services that meet those needs.
- Step 3: Integrate backend systems and perform coding, testing, debugging, and optimization to ensure high performance and code quality.
Core Concepts to Master
Object-Oriented Programming (OOP) Concepts
OOP is a programming paradigm that revolves around objects and classes. It provides a way to organize and structure code, making it more efficient, modular, and reusable. As a Java Developer, you'll need to understand key OOP concepts such as encapsulation, inheritance, and polymorphism to write robust and maintainable code.
APIs and Microservices
APIs (Application Programming Interfaces) and microservices are essential components of modern software development. APIs enable different systems to communicate with each other, while microservices allow for the decomposition of large applications into smaller, independent services. As a Java Developer, you'll need to understand how to design, build, and integrate APIs and microservices to create scalable and flexible applications.
Database Integration
Database integration is critical for storing and retrieving data in a scalable and efficient manner. As a Java Developer, you'll need to understand how to design, build, and integrate databases with your applications, using technologies such as JDBC, Hibernate, and Spring Data JPA.
SDLC Processes and Best Practices
SDLC (Software Development Life Cycle) processes and best practices are essential for delivering high-quality software on time and within budget. As a Java Developer, you'll need to understand Agile methodologies, version control systems (e.g., Git), and testing frameworks (e.g., JUnit) to ensure that your code is well-structured, maintainable, and meets business requirements.
Interview Questions (Beginner)
- What is the difference between Java and Python?
- Can you explain the concept of encapsulation in OOP?
- What is the purpose of API documentation?
- How do you handle errors and exceptions in Java?
- Can you describe the different types of database management systems?
Job Overview
Advance Questions
- • Design a microservice architecture for a complex application.
- • Explain how to implement caching in a Java application.
- • Describe the differences between Spring Boot and Spring Framework.