Walk-in | Core Java Developer-Walkin drive -Mumbai

Tata Consultancy Services; Mumbai; On-site; INR 700,000 - 1,400,000; Full time

Job summary

Tata Consultancy Services in Mumbai is seeking a skilled Java Developer to design, build and maintain scalable Java applications. You will write clean, well-documented code and implement RESTful services while collaborating with QA, DevOps, Product, and UI teams to deliver robust software.

The role requires strong Core Java (8+), Spring Boot, microservices, and SQL/NoSQL experience. You will participate in architecture discussions, ensure security and performance, troubleshoot issues, and help

Qualifications

• Strong proficiency in Core Java (Java 8 and above).
• Experience with Spring Framework (Spring Boot preferred).
• Hands-on with RESTful APIs and microservices architecture.
• Knowledge of SQL/NoSQL databases (MySQL, PostgreSQL, MongoDB).
• Familiarity with Hibernate/JPA and build tools like Maven/Gradle.

Responsibilities

• Design, develop, and maintain robust and scalable Java-based applications
• Write clean, efficient, and well-documented code following best coding practices
• Analyze user requirements and convert them into functional specifications
• Perform code reviews and ensure adherence to coding standards
• Troubleshoot, debug, and optimize application performance
• Collaborate with cross-functional teams (QA, DevOps, Product, UI)
• Participate in architecture discussions and system design
• Ensure security, reliability, and scalability of applications
• Maintain and improve existing systems by identifying bugs and enhancements.

Skills

Core Java

OOP concepts

Data Structures & Algorithms

Multithreading

Collections Framework

Exception Handling

Debugging

Performance tuning

Communication

Tools

Spring Framework (Spring Boot)

RESTful APIs

Microservices

SQL/NoSQL databases

Hibernate/JPA

Maven/Gradle

Docker

Kubernetes

CI/CD (Jenkins, GitHub Actions)

Job description

Key Responsibilities

• Design, develop, and maintain robust and scalable Java-based applications


• Write clean, efficient, and well-documented code following best coding practices


• Analyze user requirements and convert them into functional specifications


• Perform code reviews and ensure adherence to coding standards


• Troubleshoot, debug, and optimize application performance


• Collaborate with cross-functional teams (QA, DevOps, Product, UI)


• Participate in architecture discussions and system design


• Ensure security, reliability, and scalability of applications


• Maintain and improve existing systems by identifying bugs and enhancements.

Required Skills & Qualifications

Technical Skills:

• Strong proficiency in Core Java (Java 8 and above)


• Excellent understanding of:




• OOP concepts (Encapsulation, Inheritance, Polymorphism, Abstraction)


• Data Structures & Algorithms


• Multithreading and Concurrency


• Collections Framework


• Exception Handling




• Experience with Spring Framework (Spring Boot preferred)


• Hands-on with RESTful APIs and microservices architecture


• Knowledge of SQL/NoSQL databases (MySQL, PostgreSQL, MongoDB)


• Familiarity with Hibernate/JPA


• Experience with build tools like Maven/Gradle


• Strong debugging and performance tuning skills

Preferred Skills (Good to Have)

• Experience with cloud platforms (AWS/Azure/GCP)


• Knowledge of Docker, Kubernetes


• Exposure to CI/CD pipelines (Jenkins, GitHub Actions, etc.)


• Familiar with design patterns and system design principles


• Experience in event-driven architecture / messaging systems (Kafka, RabbitMQ)


• Knowledge of frontend basics (HTML, JS, Angular/React) is a plus