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! About CTG CTG, a Cegeka company, delivers IT and business solutions that enhance clients' digital agility, empowering them to seize new opportunities and overcome any challenge. Backed by more than 60 years' experience and a commitment to being a reliable, results-driven partner, we work shoulder to shoulder with clients to shape digital together. Our vision is to be an indispensable partner to our clients and the preferred career destination for digital and technology experts. With more than 9,000 team members in over 15 countries, we combine global expertise with local insight to deliver innovative solutions. We operate across the Americas, Europe, and India, working with over 3,000 clients in many of today's highest-growth industries. Together, we shape what's next-working shoulder to shoulder to deliver impactful solutions for our clients and society. Our culture is built by the people who work at CTG, the values we hold, and the actions we take. It's a living, breathing thing that is renewed every day through the ways we engage with each other, our clients, and our communities. At CTG, you'll find a workplace where you are encouraged to grow, supported in your ambitions, and empowered to shape your own career journey. For more information, visit www.ctg.com. CTG will consider for employment all qualified applicants including those with criminal histories in a manner consistent with the requirements of all applicable local, state, and federal laws. CTG is an Equal Opportunity Employer. CTG will assure equal opportunity and consideration to all applicants and employees in recruitment, selection, placement, training, benefits, compensation, promotion, transfer, and release of individuals without regard to race, creed, religion, color, national origin, sex, sexual orientation, gender identity and gender expression, age, disability, marital or veteran status, citizenship status, or any other discriminatory factors as required by law. CTG is fully committed to promoting employment opportunities for members of protected classes.