z/OS Connect API Engineer

Job location: Columbus, OH (on site work)

The z/OS Connect API Engineer is responsible for modernizing mainframe services through API enablement using IBM z/OS Connect. This role bridges traditional CICS/COBOL systems with modern API and cloud-native architectures while enabling secure, scalable, and reusable integration capabilities.

Key Responsibilities:

• Develop REST APIs using IBM z/OS Connect.
  


• Expose CICS and DB2 transactions through modern API contracts.
  


• Build and maintain API service definitions, mappings, and YAML configurations.
  


• Develop OpenAPI specifications aligned with enterprise standards.
  


• Configure and support JWT, OAuth2, OIDC, RACF, and certificate-based authentication.
  


• Implement CI/CD deployment pipelines using GitHub Actions and Gradle.
  


• Support integration with APIM as the enterprise API gateway.
  


• Troubleshoot performance, security, and connectivity issues.
  


• Develop onboarding templates and reusable API accelerators.
  


• Participate in mainframe modernization initiatives and Shadow Service migration efforts.
  

Requirements

• IBM z/OS Connect
  


• REST APIs
  


• OpenAPI
  


• JSON/XML
  


• CICS
  


• COBOL
  


• DB2
  


• RACF
  


• GitHub
  


• CI/CD
  

Preferred Skills:

• APIM
  


• Java
  


• Spring Boot
  


• OAuth2/OIDC
  


• Mainframe modernization programs