> Markdown version of [/jobs/ext/4569314-java-backend-developer-microservices-location-phoenix-az-onsite-client-impetus-amex](https://www.wearedevelopers.com/jobs/ext/4569314-java-backend-developer-microservices-location-phoenix-az-onsite-client-impetus-amex). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Java Backend Developer Microservices Location: Phoenix, AZ (Onsite) Client: Impetus / Amex - **Company:** Kasmo Inc - **Location:** Denville, NJ, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Spring Security, Automation of Tests, Cloud Engineering, Continuous Integration, Relational Databases, Database Queries, Software Debugging, Gradle, Hibernate (Java), Java Persistence API, PostgreSQL, Apache Maven, Enterprise Messaging Systems, OpenShift, Performance Tuning, RabbitMQ, Software Engineering, Systems Integration, Google Cloud, Spring-boot, Software Troubleshooting, Backend, Git, Spring Data, Kubernetes, Apache Kafka, Restful APIs, Docker, Microservices - **Published:** November 4, 2026 - **Apply:** https://www.thejobnetwork.com/job/184512f3-1608-40bc-8c5a-784f4079cec5/java-backend-developer-microservices-location-phoenix-az-onsite-client-impetus-amex ## About the Role 7 years of experience in Java backend development. Strong proficiency in Core Java (Java 8/11 or higher). Hands-on experience with Spring Boot and Microservices Architecture. Strong knowledge of Spring Security, Spring Data, and Hibernate/JPA. Experience designing, developing, and integrating RESTful APIs. Strong SQL skills and experience with PostgreSQL or other relational databases. Experience with messaging technologies such as Apache Kafka or RabbitMQ. Knowledge of Google Cloud Platform (GCP) and cloud-native application development. Experience with Docker, Kubernetes, or OpenShift. Familiarity with CI/CD pipelines, Git, Maven/Gradle, and automated testing. Strong troubleshooting, debugging, and performance-tuning skills. Experience working in Agile/Scrum environments. ## Description We are looking for an experienced Java Backend Developer with strong hands-on experience in Microservices Architecture to join an enterprise technology team supporting Impetus / Client. The ideal candidate will be responsible for designing, developing, and maintaining scalable, high-performance backend services and RESTful APIs.