Java Developer (Kotlin / Vert.X / RxJava)

Position: Java Developer (Kotlin / Vert.X / RxJava)Location: Phoenix, AZ (Onsite) Employment Type: Contract Role Summary: We are seeking an experienced Java Developer with strong expertise in Kotlin, Vert.X, and RxJava frameworks to design and develop scalable, high-performance applications. The ideal candidate will have deep technical proficiency in Java/J2EE and Spring Boot, along with a willingness to explore Large Language Models (LLMs) and Generative AI technologies. Key Responsibilities: Design and develop high-performing, distributed applications using Java/J2EE, Kotlin, Vert.X, and RxJava. Build and optimize RESTful APIs and microservices architecture. Collaborate with cross-functional teams to develop, test, and deploy robust backend solutions. Work with JSON, Web Services, and complex data structures for integration and interoperability. Participate in the full SDLC-design, development, testing, deployment, and support. Apply best practices in code quality, version control (GIT), and CI/CD automation. Work with SQL and NoSQL databases such as Oracle, DB2, Cassandra, and Couchbase. Implement automated testing using Selenium, REST Assured, and Cucumber. Leverage JIRA/Rally and Agile methodologies for sprint planning and progress tracking. Stay updated with emerging technologies like Generative AI and integrate them into business solutions. Required Skills & Experience: 6-10 years of software development experience. Strong proficiency in Java/J2EE, Spring Boot, Vert.X, RxJava, and Kotlin. Hands-on experience in REST API development and integration. Deep understanding of JSON, Web Services, and multi-tier distributed systems. Knowledge of object-oriented design principles and code optimization techniques. Experience with SQL and NoSQL databases (Oracle, DB2, Cassandra, Couchbase). Proficient in CI/CD tools such as Jenkins, Maven, Nexus, and GIT. Strong understanding of test automation frameworks and tools. Familiarity with Agile development methodologies and lifecycle management tools (JIRA, Rally). Nice to Have: Exposure to LLMs (Large Language Models) and Generative AI projects. Experience with containerization technologies such as Docker and Kubernetes. Familiarity with cloud platforms (AWS, GCP, or Azure).

Created: 2026-03-04