Role Overview

We are looking for a Java Backend Engineer with 4–6 years of experience to design, develop, and scale high-performance backend services for fraud detection and prevention platforms.

Key Responsibilities

- Design and develop scalable Java/Spring Boot microservices for high-volume transactions.
- Build REST APIs and event-driven services using Apache Kafka.
- Design and deploy applications on AWS.
- Work with MySQL/PostgreSQL, including data modeling, query optimization, and performance tuning.
- Participate in system design, architecture discussions, code reviews, and pair programming.
- Own the end-to-end development lifecycle including development, testing, deployment, and production support.
- Ensure solutions meet security, reliability, scalability, and compliance standards.
- Troubleshoot production issues and improve application performance and resiliency.
- Collaborate with product, architecture, DevOps/SRE, and other engineering teams.

Must-Have Skills

- 4–6 years of backend software development experience.
- Strong hands-on experience with Java and Spring Boot.




- Strong experience in Microservices and REST API development.
- Hands-on experience with Apache Kafka and event-driven architecture.
- Experience with AWS cloud services.
- Strong experience with MySQL and/or PostgreSQL.
- Good understanding of distributed systems, scalability, resiliency, and performance optimization.
- Experience with JUnit/Mockito, Git, CI/CD, and production troubleshooting.
- Strong understanding of secure coding and software development best practices.

Valuable-to-Have Skills

- Docker and Kubernetes
- AWS ECS/EKS, Lambda, S3, RDS, DynamoDB, SQS/SNS, CloudWatch
- Redis / Elasticsearch
- Terraform / Infrastructure as Code
- Jenkins / GitHub Actions / GitLab CI
- Prometheus, Grafana, Datadog, or Splunk
- Kafka Streams / Kafka Connect
- Experience in payments, financial services, fraud detection, or other high-volume transaction platforms
- Knowledge of Python or other server-side languages

Education: Bachelor's degree in Computer Science, Engineering, IT, or a related technical field.

📌 Java Backend Engineer (4 to 6 Years of Experience) (Bengaluru)
🏢 Norwin Technologies
📍 Bengaluru