OS Connect API Engineer(C1/C2)

OS Connect API Engineer

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, OAut., 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.

Required Skills:

IBM z/OS Connect REST APIs

OpenAPI JSON/XML

CICS COBOL DB2 RACF

Preferred Skills:

APIM

Java Spring Boot

OAut./OIDC

Mainframe modernization programs