Backend Java Developer with Kafka

Job Title : Java Backend Developer with Kafka Location : Charlotte, NC Experience : 10+ years In-person interview must

Full Stack Developer (Java, Microservices, Spring Boot, API, ReactJS) JD
Backend Development Design, develop, and maintain scalable backend services using Java, Spring Boot, and Microservices architecture.
1. API Development & Integration Build, document, and consume RESTful APIs, ensuring secure, performant, and reusable services.
2. Frontend Development Develop rich, responsive UI components using ReactJS, Redux (or similar state management), and modern JavaScript/TypeScript.
3. Database Management Design and optimize SQL/NoSQL databases, write queries, and ensure high availability and data integrity.
4. DevOps & CI/CD Work with Git, Jenkins, Docker, Kubernetes, or similar tools to support automated builds, deployments, and monitoring.
5. Testing & Quality Write unit, integration, and end-to-end tests; ensure code quality, maintainability, and adherence to best practices.
6. Agile Collaboration Partner with product owners, business analysts, QA, and other engineers in an Agile/Scrum environment, contributing to sprint planning and delivery.
7. Performance & Security Optimize application performance, troubleshoot issues, and ensure compliance with security and regulatory standards.
Functional Requirements
Build an integration framework that enables seamless interfacing between our application and various external systems through REST API for synchronous interactions and Kafka-based messaging for synch processes.
A centralized Validation Framework will be implemented to enforce consistent business rules and data integrity across all incoming requests.

Additional Non-functional requirements when building the frameworks
Ensure frameworks and interactions built are scalable and reliable
Implement robust retry, timeout, and circuit breaker patterns to handle failures or slow responses from external systems.
Ensure processing logic can safely handle duplicate or repeated messages/responses.
Handle delays or outages gracefully.
Track external API/Kafka response times, error rates, and availability to quickly detect and respond to issues.
Patterns for External API changes monitor deprecation notices and support multiple versions if needed.
Handle if external dependency is unavailable (e.g., queue requests, return partial results, or fail gracefully).
Validate all incoming data from external sources to protect against malformed or unexpected payloads.
Ensure that all external interactions are correctly Authenticated, authorized, and handle sensitive data securely (encryption and secure transmission of confidential data).