Apache Flink Developer

Deloitte Shared Services India; Mumbai; On-site; INR 1,400,000 - 2,100,000; Full time

Job summary

Deloitte Shared Services India is seeking an experienced Java Developer to design, develop, and maintain real-time streaming applications using Apache Flink and Apache Kafka. You will work on scalable data processing systems and distributed backend services in Mumbai.

The role requires strong Java fundamentals, experience with Flink/Kafka, SQL proficiency, and familiarity with Spring Boot and REST APIs. Collaboration with cross-functional teams and production troubleshooting are essential.

Qualifications

• Strong experience in Core Java, OOP, and Java 8+.
• Hands-on with Apache Flink and Apache Kafka.
• Proficient in SQL and databases, Spring Boot, REST APIs.
• Familiar with distributed systems and CI/CD basics.

Responsibilities

• Develop real-time streaming apps using Java and Flink.
• Build and maintain Kafka-based data pipelines.
• Optimize streaming jobs for performance and reliability.
• Implement fault-tolerant processing with Flink checkpoints.
• Collaborate with cross-functional teams on backend solutions.
• Debug and troubleshoot production issues.

Skills

Core Java

OOP concepts

Multithreading

Java 8+

Apache Flink

Apache Kafka

SQL

Spring Boot

REST APIs

Distributed systems

Git

Maven/Gradle

Linux/Unix

Flink DataStream API

Tools

Docker

Kubernetes

CI/CD tools

Job description

Job Description

We are looking for a skilled Java Developer with experience in real-time stream processing using Apache Flink and Apache Kafka. The candidate will be responsible for designing, developing, and maintaining scalable data processing applications and distributed systems.

Required Skills

• Strong experience in Core Java, OOP concepts, Collections, Multithreading, and Java 8+
• Hands-on experience with Apache Flink (DataStream API, State Management, Windows, Watermarks, Checkpointing)
• Experience with Apache Kafka (Topics, Producers, Consumers, Partitions, Message Processing)
• Good knowledge of SQL and database concepts
• Experience with Spring Boot and REST APIs
• Understanding of distributed systems and event-driven architecture
• Experience with Git and Maven/Gradle
• Good knowledge of Linux/Unix environments

Responsibilities

• Develop real-time streaming applications using Java and Apache Flink
• Build and maintain Kafka-based data pipelines
• Optimize streaming jobs for performance and reliability
• Implement fault-tolerant processing using Flink checkpoints and state management
• Work with cross-functional teams to deliver scalable backend solutions
• Debug and troubleshoot production issues

Preferred Skills

• Experience with cloud platforms (AWS/Azure/GCP)
• Knowledge of Docker and Kubernetes
• Experience with data formats like JSON, Avro, and Parquet
• Knowledge of CI/CD tools