Java Backend Engineer (4 to 6 Years of Experience)

Norwin Technologies • Cybersecurity • Information Technology • Python • Java • Kotlin • 1 day ago
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Location
In office (Bengaluru)
Experience
4+ years exp
Employment
Full-Time

First seen by Alion on Oct 24, 2026.

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Norwin Technologies

Norwin Technologies is an enterprise IT services and workforce solutions provider specializing in digital infrastructure, modern applications, and intelligent automation. Headquartered in Boston, Massachusetts, the company delivers comprehensive technology consulting, managed services, and strategic staffing to global organizations. Founded in 2003, it leverages an integrated global delivery model across North America and India to help clients accelerate digital transformation and scale their technical operations.
norwintechnologies.com • HQ: Boston, United States • Information Technology • Cybersecurity • Information Security • Cloud Consulting & Migration • 51-200 employees • Est. 2003
Tech stack of Norwin Technologies

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.

Good-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.

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