Senior Java Backend Engineer (Kafka, AWS, Spring Boot - Denver, CO - Onsite Job Title: Senior Java Backend Engineer (Kafka, AWS, Spring Boot Location: Denver, CO- Onsite Duration: 6 Months Contract with possible Extension based on performance. Visas: Independent visa Holders are eligible. Must Have Java + Spring Boot (Microservices) Kafka / Event-driven architecture AWS (EKS/ECS, Lambda, API Gateway, DynamoDB) Distributed systems (high-scale, low-latency design) Database expertise (SQL +