Java Backend Engineer (with Kotlin)

Computer Task Group, Inc
Phoenix, AZ

Job Description

Job Description

Overview

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.

Location: Phoenix, AZ

Duration: 12 months

Key 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.

Required Skills:

  • 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.

Preferred Qualifications:

  • 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.

Experience:

  • 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.

Education:

  • 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.

CTG does not accept unsolicited resumes from headhunters, recruitment agencies, or fee based recruitment services for this role.

To Apply:

To be considered, please apply directly to this requisition using the link provided. Kindly forward this to any other interested parties. Thank you!

Posted 2026-07-10

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