Backend Java Developer

We are looking for an experienced Backend Developer with 5+ years of hands-on experience in designing, developing, and maintaining scalable backend applications and services. The candidate should have strong expertise in backend development, API design, databases, microservices, cloud technologies, and software engineering best practices.

The ideal candidate will be responsible for developing robust backend solutions, contributing to system architecture and design, optimizing application performance, and working closely with cross-functional teams.

Key Responsibilities

• Design, develop, and maintain scalable and high-performance backend applications.
• Develop and integrate RESTful APIs and microservices.
• Participate in architecture and technical design discussions.
• Design and optimize database schemas, queries, indexes, and data models.
• Identify and resolve performance, scalability, and reliability issues.
• Implement secure authentication, authorization, and data protection mechanisms.
• Write clean, reusable, maintainable, and well-tested code.
• Develop unit, integration, and automated tests.
• Conduct code reviews and ensure adherence to coding standards and best practices.
• Troubleshoot production issues and perform root-cause analysis.
• Work with DevOps teams on CI/CD, deployment, monitoring, and release management.
• Collaborate with frontend developers, QA engineers, DevOps, product managers, and business teams.
• Contribute to technical documentation and knowledge-sharing initiatives.
• Mentor junior developers and provide technical guidance where required.

Required Technical Skills Backend Development

• Strong hands-on experience with at least one backend technology:
• Java / Spring Boot
• Python / Django / FastAPI
• Node.js / Express
• C# / .NET
• Go
• Strong understanding of OOP, design patterns, data structures, and algorithms.
• Strong experience designing and developing REST APIs and microservices.
• Good understanding of API security, authentication, authorization, OAuth2, and JWT.

Database

• Strong experience with relational databases such as PostgreSQL, MySQL, or SQL Server.
• Experience with query optimization, indexing, transactions, and database design.
• Working knowledge of NoSQL databases such as MongoDB, DynamoDB, or Redis.

Cloud & DevOps

• Hands-on experience with at least one cloud platform:
• AWS
• Microsoft Azure
• Google Cloud Platform
• Experience with Docker and CI/CD pipelines.
• Knowledge of Kubernetes is preferred.
• Familiarity with logging, monitoring, and application performance management tools.

Messaging & Distributed Systems

• Experience with messaging/event-driven technologies such as Kafka, RabbitMQ, AWS SQS/SNS, or Azure Service Bus.
• Understanding of distributed systems, asynchronous processing, caching, scalability, and fault tolerance.

Development Practices

• Strong experience with Git and version control.
• Experience with Agile/Scrum development methodologies.
• Strong understanding of unit testing, integration testing, debugging, and code quality practices.

Preferred Qualifications

• Experience designing and implementing large-scale or high-volume applications.
• Experience with microservices architecture and distributed systems.
• Knowledge of system design and scalability principles.
• Experience with performance tuning and production optimization.
• Experience mentoring junior developers.
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent communication and collaboration skills.