Job Description: Java Backend Developer

Experience: 1–2+ Years

Employment Type: Full time

Location: Ahmedabad, Gujarat

Department: Engineering

Job Summary

We are looking for a Java Backend Developer with hands-on experience in Java, Spring Boot, microservices, Apache Kafka, multithreading, and search technologies. The candidate will develop scalable, high-performance backend services in a distributed, event-driven architecture.

Key Responsibilities

- Develop and maintain Java-based backend applications using Core Java and Spring Boot.

- Build and integrate microservices in distributed architectures.

- Implement event-driven processing using Apache Kafka, including producers, consumers, topics, partitions, consumer groups, and offset management.

- Manage concurrent task execution using Java ExecutorService, thread pools, synchronization, and concurrent data structures.

- Implement search and indexing functionality using Apache Lucene or Apache Solr.

- Develop REST APIs and work with gRPC/Protobuf for service communication.

- Work with MySQL/PostgreSQL, Spring Data JPA/Hibernate, and Redis.

- Write unit/integration tests, troubleshoot issues, and optimize application performance.

- Use Git, Maven, Docker, logging,



and monitoring tools for development and maintenance.

Required Skills

- 1–2+ years of hands-on Java backend development experience.

- Strong Core Java, OOP, Collections, Streams, Lambdas, and exception handling.

- Practical experience with Spring Boot, REST APIs, and microservices/distributed architecture.

- Mandatory hands-on experience with Apache Kafka.

- Mandatory experience with ExecutorService, thread pools, multithreading, and concurrency management.

- Experience with Apache Lucene or Apache Solr for search and indexing.

- Working knowledge of JPA/Hibernate, MySQL/PostgreSQL, and Redis.

- Understanding of thread safety, synchronization, debugging, and performance optimization.

- Familiarity with gRPC/Protobuf, Spring Cloud, Docker, WebSocket/STOMP, Prometheus/Grafana, and distributed messaging reliability is an advantage.

Candidate Profile

Strong problem-solving skills, valuable communication, and the ability to build reliable, scalable backend services in a collaborative engineering environment.

Pay: ₹300,000.00 - ₹450,000.00 per year

Benefits:

- Provident Fund

Work Location: In person

📌 Java Developer (Ambli)
🏢 KEYANNA TECHNOLOGY
📍 Ambli