Java Backend Engineer (Spring Boot/AWS)

Winzons; India; On-site; INR 1,800,000 - 2,400,000; Full time

Job summary

Ionixx Technologies is seeking a highly experienced Senior Backend Engineer to join our Development team in India. You will lead backend design and implementation using Java, PostgreSQL, AWS services, and Kafka to build scalable APIs.

The ideal candidate has 10+ years of hands-on backend experience, strong Java expertise (Spring Boot or similar), and a solid track record in microservices, security, and CI/CD practices.

Qualifications

• 10+ years of hands-on backend development.
• Proficient in Java with Spring Boot or similar frameworks.
• Deep PostgreSQL knowledge including indexing and performance tuning.
• Experience building with Apache Kafka for real-time processing.
• Experience with AWS core services in production.
• Familiarity with microservices architecture and REST standards.
• Experience with Git and CI/CD tooling.
• Strong problem-solving and independent work ability.

Responsibilities

• Design, develop, and maintain scalable RESTful APIs in Java.
• Optimize PostgreSQL schemas, queries, and performance.
• Build data pipelines and real-time processing with Kafka.
• Leverage AWS services to create cloud-native apps.
• Collaborate with product, frontend, and QA teams.
• Participate in code reviews, design discussions, mentor juniors.
• Troubleshoot production issues and ensure high availability.

Skills

Java

Spring Boot

PostgreSQL

Apache Kafka

AWS

Microservices

REST APIs

Git

CI/CD

Problem solving

Education

Bachelor's degree in CS

Tools

Docker

Kubernetes

Prometheus

Grafana

Job description

Company Name: Ionixx Technologies

Job Role: Java Backend Engineer

Work Type: Full-Time

Experience: 8-12 Years

Department: Development/Engineering

Qualification: Bachelor’s Degree in Computer Science or related field

Location: India

Timings: 2:30 PM to 11:30 PM

Job Overview :

We are seeking a highly experienced Senior Backend Engineer with over 10 years of experience in backend development, specifically using Java, PostgreSQL, AWS core services, and Apache Kafka. The ideal candidate will have a strong background in designing, developing, and maintaining scalable APIs and distributed systems in a cloud-based environment.

Key Responsibilities :

• Design, develop, and maintain scalable and secure RESTful APIs using Java (Spring Boot or similar frameworks).
• Optimize and manage PostgreSQL databases, including schema design, indexing, and performance tuning.
• Build and maintain data pipelines and real-time processing systems using Apache Kafka.
• Leverage AWS core services (e.g., EC2, S3, Lambda, RDS, CloudWatch, Dynamodb) to build cloud-native applications.
• Collaborate with cross-functional teams including product managers, front-end developers, and QA to deliver high-quality software.
• Participate in code reviews, design discussions, and mentor junior team members.
• Troubleshoot production issues and ensure high system availability and performance.

Required Qualifications :

• 10+ years of hands-on experience in backend development.
• Strong proficiency in Java, with experience in frameworks like Spring Boot, Dropwizard, or similar.
• Deep understanding of PostgreSQL : SQL queries, indexing, performance optimization, and database design.
• Hands-on experience with Apache Kafka for building event-driven and real-time applications.
• Proven experience working with AWS core services in a production environment.
• Solid understanding of microservices architecture, security best practices, and REST API standards.
• Experience with version control systems like Git and CI/CD tools.
• Strong problem-solving skills and the ability to work independently or in a team.

Preferred Qualifications :

• Experience with containerization tools like Docker and orchestration tools like Kubernetes.
• Exposure to monitoring and logging tools like Prometheus, Grafana, CloudWatch, or ELK stack.