Java Backend Engineer (with Kotlin)

Computer Task Group, Inc • Phoenix, AZ

4d • Onsite

About The Position

We're seeking an experienced Java Backend Engineer with strong Kotlin expertise to develop high-performance, reactive backend services and enterprise APIs. The ideal candidate has extensive experience building scalable Java applications using modern frameworks, microservices architecture, and DevOps best practices.

Requirements

• 6+ years of hands-on Java development experience using Java 8 or newer.
• Professional experience developing backend APIs and microservices.
• Hands-on Kotlin development experience.
• Strong experience with reactive programming frameworks.
• Experience with Spring Boot, Spring Framework, and Java/JEE technologies.
• Solid understanding of REST APIs, dependency injection, IoC, AOP, and functional programming.
• Experience with JPA, Hibernate, or other enterprise data access frameworks.
• Knowledge of transaction management and batch processing frameworks.
• Experience with test-driven development (TDD) and automated testing.
• Familiarity with DevOps practices, CI/CD pipelines, Git, and Agile methodologies.
• Minimum 6 years of professional backend software development experience.
• Proven experience delivering enterprise Java applications in Agile environments.
• Experience developing scalable, production-ready APIs and distributed applications.
• Bachelor's degree in Computer Science, Information Technology, Software Engineering, or a related discipline. Equivalent professional experience will also be considered.
• Excellent verbal and written English communication skills and the ability to interact professionally with a diverse group are required.

Nice To Haves

• Experience designing highly available, distributed enterprise systems.
• Knowledge of cloud platforms such as AWS, Azure, or Google Cloud.
• Experience with containerization technologies including Docker and Kubernetes.
• Strong analytical, troubleshooting, and communication skills.

Responsibilities

• Design, develop, and maintain backend applications using Java 8+ and Kotlin.
• Build scalable RESTful APIs and microservices utilizing reactive programming principles.
• Develop enterprise-grade Java/JEE applications with a focus on performance, reliability, and maintainability.
• Implement dependency injection, inversion of control (IoC), aspect-oriented programming (AOP), and functional programming techniques.
• Design and develop data access, transaction management, and batch processing solutions.
• Collaborate with architects, product owners, QA, and DevOps teams throughout the software development lifecycle.
• Participate in code reviews, automated testing, CI/CD pipeline implementation, and Agile development activities.
• Troubleshoot production issues and optimize application performance.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior