Senior IBM z/OS Connect Developer

ImagineX Consulting•Columbus, OH

2d•Onsite

About The Position

ImagineX is a tech company that deploys AI‑assisted teams to build and secure mission‑critical enterprise solutions with our clients – spanning software, cybersecurity, data, and AI. Structured like a software company, not a traditional consultancy, we blend deep technical expertise with authentic values, achieving world‑class satisfaction (NPS 82). Our dedicated teams specialize in software, data, and AI across the U.S. and LATAM, bridging the gap between boutique agility and enterprise scale. Overview We are seeking a highly skilled Senior Developer – IBM z/OS Connect to support the Gigawatt program’s efforts to build new z/OS services that integrate with MACSS. This role is critical to accelerating service development, strengthening mainframe integration capabilities, and enabling seamless connectivity between legacy systems and modern platforms. The ideal candidate brings deep experience with z/OS Connect, API enablement, and mainframe service development. This is a full‑time opportunity based in Columbus, OH with a requirement of being onsite five days per week.

Requirements

Extensive hands‑on experience with IBM z/OS Connect, including API creation, service mapping, and configuration
Strong background in mainframe development using COBOL, JCL, CICS, DB2, and related technologies
Proven experience building and integrating z/OS services with enterprise applications
Deep understanding of REST APIs, JSON, API security, and service orchestration
Strong troubleshooting skills across mainframe, API, and integration layers
Ability to work effectively in a fast‑paced, highly collaborative environment
Excellent analytical, problem‑solving, and communication skills

Nice To Haves

Experience integrating z/OS Connect services with MACSS or similar legacy systems
Familiarity with API gateways, API management platforms, and hybrid integration architectures
Knowledge of DevOps practices, CI/CD pipelines, and automation for mainframe API deployments
Background supporting large‑scale modernization or transformation initiatives
Experience with microservices, containers, or cloud-based integration patterns

Responsibilities

Design, develop, and implement new z/OS Connect services to support Gigawatt program needs
Build and enhance integrations between z/OS services and MACSS applications
Collaborate with architects, mainframe engineers, and cross‑functional teams to ensure scalable and secure service delivery
Develop and optimize APIs, service definitions, and integration flows within the z/OS Connect ecosystem
Troubleshoot and resolve complex issues across z/OS Connect, mainframe services, and downstream integrations
Participate in design reviews, code reviews, and technical discussions to ensure high‑quality engineering outcomes
Contribute to modernization initiatives that bridge mainframe systems with API‑driven architectures
Ensure adherence to enterprise standards, security requirements, and compliance frameworks
Provide subject matter expertise across z/OS Connect, API development, and mainframe integration patterns

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