Java Developer (Kotlin / Vert.X / RxJava)

Purple Drive
Phoenix, AZ

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).

Posted 2025-11-07

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