Software Developer

Role & responsibilities

Java Spring Boot Microservices Developer 5+ Years Experience

Job Description

We are looking for an experienced Java Backend Developer with 5+ years of hands-on experience in Java, Spring Boot, Microservices, Object-Oriented Programming, and Data Structures & Algorithms.

The candidate should have strong experience designing, developing, testing, and maintaining scalable backend applications and microservices.

Key Responsibilities

• Design, develop, and maintain scalable backend applications using Java and Spring Boot.
  
• Develop and integrate RESTful APIs and Microservices.
  
• Apply strong OOP principles, SOLID principles, and design patterns to build maintainable applications.
  
• Work with Data Structures and Algorithms to develop efficient and optimized solutions.
  
• Design and implement database schemas, queries, and data-access layers.
  
• Troubleshoot production issues, perform root-cause analysis, and implement permanent fixes.
  
• Write clean, reusable, testable, and maintainable code.
  
• Perform code reviews and contribute to engineering best practices.
  
• Collaborate with frontend developers, QA engineers, DevOps teams, architects, and product teams.
  
• Participate in system design and technical discussions for scalable distributed systems.
  
• Implement unit and integration testing and maintain good test coverage.
  
• Monitor application performance and identify opportunities for optimization.
  

Required Technical Skills

Core Java

• Java 8/11/17+
  
• OOP concepts
  
• Collections Framework
  
• Exception Handling
  
• Generics
  
• Multithreading and Concurrency
  
• Java Streams and Lambda Expressions
  
• Functional Interfaces
  
• JVM fundamentals
  
• Memory management and Garbage Collection
  

Data Structures & Algorithms

• Arrays and Strings
  
• Linked Lists
  
• Stack and Queue
  
• HashMap/HashSet
  
• Trees and Binary Search Trees
  
• Heaps
  
• Graphs
  
• Recursion and Backtracking
  
• Sorting and Searching
  
• Dynamic Programming
  
• Time and Space Complexity
  

Spring / Spring Boot

• Spring Core
  
• Dependency Injection / IoC
  
• Spring Boot
  
• Spring MVC
  
• Spring Data JPA
  
• Spring Security
  
• REST APIs
  
• Exception handling
  
• Validation
  
• Actuator
  
• Configuration and Profiles
  

Microservices

• Microservices architecture
  
• Service-to-service communication
  
• REST APIs
  
• API Gateway
  
• Service Discovery
  
• Circuit Breaker
  
• Resilience patterns
  
• Distributed transactions
  
• Logging and monitoring
  
• Authentication and authorization
  
• Fault tolerance and scalability
  

Database

• SQL
  
• MySQL / PostgreSQL / Oracle
  
• Joins, indexes, views, stored procedures
  
• Query optimization
  
• Transactions and ACID
  
• JPA/Hibernate
  
• Basic knowledge of NoSQL databases such as MongoDB/Redis
  

Messaging & Cloud

• Kafka or RabbitMQ
  
• Docker
  
• Kubernetes basics
  
• CI/CD concepts
  
• AWS/Azure/GCP fundamentals
  

Testing & Tools

• JUnit
  
• Mockito
  
• Maven/Gradle
  
• Git
  
• Postman
  
• SonarQube
  
• Jenkins/GitHub Actions
  

Good to Have

• System Design experience
  
• Design Patterns
  
• SOLID principles
  
• Event-driven architecture
  
• Distributed systems
  
• Redis caching
  
• Cloud-native application development
  
• Kubernetes
  
• Observability using tools such as Prometheus/Grafana
  

Experience

• 5+ years of professional software development experience.
  
• Strong hands-on experience in Java and Spring Boot.
  
• Experience building and supporting production-grade Microservices.
  
• Strong understanding of DSA, OOP, database concepts, and system design.
  
• Experience working in Agile/Scrum development environments.
  

Interview Focus Areas

Candidates should be prepared for questions on:

1. Core Java & OOP
   
2. Collections and Java 8+ features
   
3. Multithreading and concurrency
   
4. DSA and coding problems
   
5. Spring Boot
   
6. REST API design
   
7. Microservices architecture
   
8. Kafka/messaging
   
9. SQL and database optimization
   
10. System design
    
11. Design patterns and SOLID principles
    
12. Real-world production/debugging scenarios
    

Preferred candidate profile

Perks and benefits