Java Backend Developer - Charlotte,NC [Local]

Location: Charlotte, NC (Locals Only In-Person Interview)
Experience: 12 Years

Position Overview

We are seeking a highly experienced Java Backend Developer to design, develop, and maintain scalable backend services and APIs. The ideal candidate will have hands-on expertise in microservices, cloud platforms, system integration, and high-performance application development.

Required Skills & Experience

• Strong proficiency in Java (8/11/17 ), Spring Boot, Spring Cloud.

• Expertise in Microservices Architecture and API development.

• Strong experience with REST APIs, JSON, Web Services.

• Good knowledge of Relational Databases (MySQL, PostgreSQL) and NoSQL (MongoDB, Cassandra, etc.).

• Hands-on with CI/CD pipelines, Git/GitHub, Docker, Kubernetes.

• Cloud experience with AWS / Azure / Google Cloud Platform (preferred).

• Solid understanding of OOP, design patterns, and multithreading.

• Experience with messaging systems (Kafka, RabbitMQ).

Functional Requirements

• Build an integration framework enabling seamless interfacing between internal apps and external systems using:

  • REST API (synchronous interactions).

  • Kafka-based messaging (asynchronous processes).

• Implement a Centralized Validation Framework to enforce consistent business rules and data integrity across all requests.

Non-Functional Requirements

• Ensure scalability, reliability, and fault tolerance of frameworks.

• Implement retry, timeout, and circuit breaker patterns for external system failures.

• Ensure safe handling of duplicate/repeated messages.

• Gracefully handle delays/outages in external dependencies.

• Monitor API/Kafka response times, error rates, and availability.

• Support API versioning and external dependency changes.

• Securely handle authentication, authorization, and sensitive data (encryption & secure transmission).