Java Back End Developer

Wissen Technology; Mumbai; Híbrido; INR 1 400 000 - 2 200 000; Tempo integral

Resumo da oferta

Wissen Technology is seeking a Java Backend Developer to join our backend team. You will design, build, and scale backend services using Java, Spring Boot, and microservices architecture while leveraging Apache Kafka for event-driven processing.

The role requires strong DSA knowledge, REST API development, and distributed systems expertise. You will collaborate with cross-functional teams to deliver high-performance backend solutions in a dynamic environment.

Qualificações

• Strong knowledge of Core Java including OOP, Collections and multithreading.
• Expertise in the Spring Framework (Boot, MVC, Data JPA, Hibernate).
• Experience with Microservices architecture, REST APIs, and distributed systems.

Responsabilidades

• Design, develop, test, and maintain backend applications using Java and Spring Boot.
• Develop and maintain RESTful APIs and microservices-based applications.
• Implement event-driven architectures using Apache Kafka.
• Apply DSA concepts to build optimized solutions.
• Work with MySQL, PostgreSQL, or MongoDB databases.
• Implement proper exception handling, logging, security, and performance optimizations.
• Develop unit and integration tests (JUnit, Mockito).
• Collaborate with architects, product managers, QA, and DevOps teams.
• Participate in code reviews, debugging, and production issue resolution.
• Follow coding standards for scalable and maintainable software.

Conhecimentos

Core Java

Spring Framework

Microservices

DSA

REST APIs

Distributed systems

Ferramentas

Git

Maven/Gradle

Docker

Jenkins

CI/CD

Kubernetes

AWS/Azure

Descrição da oferta de emprego

Role & responsibilities

Job Description: Java Backend Developer

Job Title: Java Backend Developer / Senior Java Developer
Experience: 38 Years (Flexible based on requirement)
Skills: Java, Spring Boot, Microservices, Data Structures & Algorithms (DSA), Apache Kafka

Job Summary

We are looking for a skilled Java Backend Developer with strong experience in Java, Spring Boot, Microservices architecture, and Apache Kafka. The candidate should have a solid understanding of Data Structures and Algorithms (DSA), REST API development, and distributed systems to build scalable, high-performance backend applications.

Key Responsibilities

• Design, develop, test, and maintain backend applications using Java and Spring Boot.
• Develop and maintain RESTful APIs and microservices-based applications.
• Implement event-driven architectures using Apache Kafka.
• Apply DSA concepts to develop efficient and optimized solutions.
• Work with databases such as MySQL, PostgreSQL, or MongoDB.
• Implement exception handling, logging, security, and performance optimization.
• Develop unit and integration tests using JUnit and Mockito.
• Collaborate with architects, product managers, QA, and DevOps teams.
• Participate in code reviews, debugging, and production issue resolution.
• Follow coding standards and best practices for scalable and maintainable software.

Required Technical Skills

• Core Java: OOP, Collections, Multithreading, Concurrency, Streams, Exception Handling.
• Spring Framework: Spring Boot, Spring MVC, Spring Security, Spring Data JPA, Hibernate.
• Microservices: REST APIs, service discovery, API Gateway, inter-service communication, fault tolerance, distributed systems.
• Apache Kafka: Producers, Consumers, Topics, Partitions, Consumer Groups, Offset Management, and message delivery semantics.
• DSA: Arrays, Strings, Linked Lists, Stacks, Queues, Trees, Graphs, Hashing, Sorting, Searching, Recursion, and Time/Space Complexity.
• Databases: SQL, joins, indexing, query optimization, and transactions.
• Testing: JUnit, Mockito, and integration testing.
• Tools: Git, Maven/Gradle, Docker, Jenkins, and CI/CD.
• Cloud/Deployment: Basic knowledge of AWS, Azure, or Kubernetes is an advantage.