Mainframe Modernization Engineer (COBOL)

Mainframe Modernization Engineer (COBOL)

CTG is seeking an experienced Mainframe Modernization Engineer (COBOL) to support a large-scale legacy modernization initiative. This role combines deep expertise in COBOL, CICS, and DB2 with modern Java development to migrate mission-critical applications to scalable microservices architectures.

Location: Columbus, OH Duration: 12 months

Key Responsibilities:

Develop, maintain, and migrate COBOL/CICS/DB2 online and batch applications.

Design and build Java 21/Spring Boot microservices.

Support application modernization, testing, deployment, and production support.

Develop containerized solutions using Docker and Kubernetes.

Implement Kafka-based messaging solutions.

Optimize SQL performance and participate in Agile development activities.

Required Qualifications:

7+ years of backend or full-stack development experience.

Strong hands-on experience with COBOL, CICS, DB2, and mainframe migration.

Expert knowledge of Java 17+/21 and Spring Boot.

Experience with microservices, Docker, Kubernetes, Kafka, Git, and CI/CD.

Strong SQL, troubleshooting, and enterprise application architecture skills.