Key Responsibilities

• Design, develop, and maintain scalable backend applications using Java (8+) and Spring Boot.
• Develop and optimize RESTful APIs and Microservices.
• Implement asynchronous processing using Kafka, RabbitMQ, or ActiveMQ.
• Work with GraphQL and WebSockets for real-time applications.
• Develop and optimize database queries using PostgreSQL, MySQL, or MongoDB.
• Work with ORM frameworks like Hibernate, JPA for database interactions.
• Implement caching mechanisms using Redis, Memcached, or Hazelcast.
• Handle database migrations using Flyway or Liquibase.
• Develop Microservices-based architectures using Spring Cloud.
• Implement service discovery, API gateways, and load balancing using Eureka, Zuul, or Consul.
• Deploy applications on AWS, Azure, or Google Cloud Platform (GCP).
• Work with Docker, Kubernetes, and serverless architectures (AWS Lambda, Google Cloud Functions).
• Implement OAuth2, JWT, and role-based access control (RBAC).
• Secure APIs from CSRF, XSS, SQL Injection, and other vulnerabilities.
• Optimize application performance using profiling tools like JProfiler, YourKit, or New Relic.
• Implement rate limiting, throttling, and circuit breakers.
• Automate builds and deployments using Jenkins, GitHub Actions, or GitLab CI/CD.
• Containerize applications with Docker and orchestrate with Kubernetes.
• Monitor and log application performance using ELK Stack, Prometheus, Grafana.
• Write unit and integration tests using JUnit, Mockito, TestNG.
• Perform code reviews, debugging, and refactoring for maintainability.
• Implement test-driven development (TDD) and continuous testing.
  
  

Required Skills & Qualifications

Experience : 5+ years in Java backend development.

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

• Strong expertise in Java 8+, Spring Boot, and Spring Framework.
• Experience with Microservices, RESTful API development.
• Knowledge of JPA, Hibernate, and database optimization techniques.
• Experience with PostgreSQL, MySQL, MongoDB, or Cassandra.
• Proficiency in SQL tuning, indexing, and performance optimization.
• Hands-on experience with AWS (EC2, S3, RDS, Lambda), Azure, or GCP.
• Knowledge of Docker, Kubernetes, Terraform, and CI/CD pipelines.
• Experience with Apache Kafka, RabbitMQ, ActiveMQ, or Google Pub/Sub.
• Implementation of event-driven architecture for real-time data processing.
• Expertise in secure coding practices, authentication, and authorization.
• Strong understanding of API rate limiting, caching, and load balancing.
  
  

Preferred Qualifications

• Experience with Reactive Programming (Project Reactor, WebFlux).
• Knowledge of Serverless architectures and NoSQL databases.
• Familiarity with GraphQL, gRPC, or WebSockets.
  
  

(ref:hirist.tech)