z/OS Connect API Architecture Engineer

Job Description

Title: z/OS Connect API Architecture Engineer

Location: Preferably Columbus, OH (on site work). Remote is also a possibility.

Job Description:

LinkedIn profiles must be checked and validated against the resume. Experience inconsistencies, profile with no picture or recently updated and few connections are red flags. In case you submit a candidate with any of these red flags you must add your comments on the Submission Notes bullet of your submission

The need is for someone who:

* has personally installed and configured a new IBM z/OS Connect EE and WebSphere Liberty environment from scratch

* not someone who developed APIs on an existing server or supported another infrastructure team.

- As per new Capgemini guidelines, I am required to check IDs before the interview, on video. Please tell your candidates .

The z/OS Connect API Engineer/Architect 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 :

Installation and configuration of a new IBM z/OS Connect EE and WebSphere Liberty environment from scratch

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

Required Skills:

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