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ScaleneWorks INC
Java Backend Developer with Kafka

Java Backend Developer with Kafka

On site

Charlotte, United states

Freelance

07-10-2025

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Skills

Java Encryption Kafka

Job Specifications

Job Title :: Java Backend Developer with Kafka

Location :: Charlotte, NC-Day 1 Onsite

Job Type: Contract

Job Description

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).

About the Company

1200 + people strong organization with 3 primary business units - Consulting, Recruitment and Technology. The organization is considered by many as the first and only True end-to-end Talent Acquisition Solutions organization bringing together decades of experience in both Business Transformation & Technology Consulting as well as running HR & Talent Acquisition functions. Our main service offerings include: 1. Strategic HCM Consulting - Advising new & existing businesses on structuring high-performance HR and Talent Acqui... Know more