Senior Java Developer

RekNomics; Chennai; On-site; INR 1,100,000 - 1,900,000; Full time

Job summary

RekNomics in Chennai, India is seeking a Senior Java Developer to design and build scalable backend applications using Java, Spring Boot and microservices. You will own modules end-to-end from design to deployment in a fast-paced Agile environment.

You should have 5+ years of core Java backend experience, strong skills in Java, Spring Boot, REST APIs, distributed systems, multithreading, and solid DSA fundamentals. Kafka experience and container exposure are a plus.

Qualifications

• 5+ years of core Java backend experience.
• Strong in Java, Spring Boot, Microservices, REST APIs.
• Experience with distributed systems and multithreading/concurrency.
• Strong Data Structures and Algorithms (DSA) fundamentals.
• JUnit/unit testing comfort.
• Builder mindset - designed and built systems, not just maintained them.

Responsibilities

• Design and build scalable backend microservices using Java and Spring Boot.
• Architect event-driven systems using Apache Kafka
• Own modules end-to-end - from design to production deployment
• Write clean, testable code with JUnit coverage
• Participate in system design reviews and code reviews
• Work in a fast-paced Agile product environment

Education

BE/BTech in any stream

5+ years core Java backend

Java

Spring Boot

Microservices

REST APIs

DSA fundamentals

JUnit

Builder mindset

Tools

Kafka

Redis

Docker

Kubernetes

AWS

Job description

We are hiring a Senior Java Developer to design and build scalable, high-performance backend applications. This role is ideal for engineers who enjoy solving complex technical challenges and love building systems from scratch, not maintaining legacy code.

Immediate joiners and candidates serving notice preferred.

What you'll do:

• Design and build scalable backend microservices using Java and Spring Boot

• Architect event-driven systems using Apache Kafka

• Own modules end-to-end - from design to production deployment

• Write clean, testable code with JUnit coverage

• Participate in system design reviews and code reviews

• Work in a fast-paced Agile product environment

What we're looking for:

• 5+ years of core Java backend experience

• Strong in Java, Spring Boot, Microservices, REST APIs

• Experience with distributed systems and multithreading/concurrency

• Strong Data Structures and Algorithms (DSA) fundamentals

• Kafka experience preferred

• JUnit/unit testing comfort

• Builder mindset - designed and built systems, not just maintained them

• BE/BTech in any stream

Nice to have:

• Product company background

• Redis, Docker, Kubernetes, AWS exposure

• Active on HackerRank/LeetCode