Java Backend developer

Experience : 4-6 years Must have : Responsibilities and Qualifications:  Project Management: Create architecture diagrams, manage connection pooling, ensure security, and handle app/web server configurations.
Implement logging and monitoring solutions.
 OOPS Concepts: Apply principles of overloading, overriding, inheritance, polymorphism, encapsulation, abstraction, object memory model, exception handling, and keywords (static, final, this).
Manage garbage collection.
 Java 8 and Above: Utilize Stream API, lambda functions, modules, collectors, functional interfaces, optional keyword, list, set, map, comparable and comparator, and serialization.
 Spring Framework: Create new applications, implement dependency injection (types), AOP, and use stereotype annotations.
 Microservice Architecture: Follow REST standards (verbs and resources), develop REST controllers, services, repositories, handle exception management, use API accessing tools (SOAP UI or POSTMAN), manage API gateway, and document APIs using Swagger/Open API.
 Application Security: Implement authentication (Basic Auth, JWT, OAuth2), authorization, and manage public/private keys.
 Junit/Mockito: Write unit tests using Junit4/Junit Jupiter and Mockito framework.
 Problem Solving: Write code using Stream API and lambda functions, and solve basic data structure and algorithm-based questions.
 Clean Code Concepts: Apply design patterns, SOLID design principles, KISS, DRY, and YAGNI.
Good to have :  Cloud Skills: Experience with AWS, Azure, GCP, or Pivotal Cloud Foundry.
 AWS Services: Familiarity with VPC, EC2, ALB, Lambda, DynamoDB, RDS, IAM, S3, API Gateway, Fargate, CloudWatch, Route53.
 Containers: Proficiency with Docker and Kubernetes.
 Infrastructure as Code (IaaC): Knowledge of Terraform, CloudFormation, SAM, or CDK.
 Frontend Frameworks: Experience with React, Angular, or Vue.
 CSS Frameworks: Proficiency with Bootstrap or SCCS.
 DevOps Tools: Knowledge of Jenkins, UrbanCode, GitHub, Git, Confluence, Jira, AWS CI/CD.
 Multithreading Concepts: Understanding of Runnable, Callable, Executor framework, CompletableFuture.
 ORM (JPA/Hibernate): Experience with Hikari Config, DB connection, DB connection pool, entity relationships (One to One, One to Many, Many to One, Many to Many), transactional management, composite key.
 Basic Frontend Skills: Proficiency in HTML, CSS, JavaScript.
Work with one of the Big 4's in India