Mainframe Infrastructure Engineer III

JPMorgan Chase & Co.; Columbus (OH); On-site; USD 120,000 - 170,000; Full time

Job summary

JPMorgan Chase & Co. is seeking an Infrastructure Engineer III to manage Endevor-centric automation, pipelines, and audit-ready processes within Corporate Technology.

You will build and govern Endevor inventory models, develop Python/REXX tooling, and drive secure, scalable automation across the z/OS ecosystem. Strong expertise in Endevor, Jenkins, and wrapper APIs is required, with a focus on reliability, traceability, and DR preparedness in a multi-cloud environment.

Qualifications

• Formal training or certification in infrastructure engineering concepts.
• Minimum 3+ years of applied infrastructure engineering experience.
• Proven Endevor platform engineering experience (inventory models, processors, packages, promotion rules).
• Experience with CI/CD using Jenkins and pipeline-as-code.
• Ability to develop and support versioned wrapper interfaces around Endevor APIs/CLI.

Responsibilities

• Engineer and govern the Endevor inventory model aligned to SDLC, release governance, and separation of duties.
• Configure and maintain processors to enable deterministic builds (compile/link/edit flows, include handling, middleware hooks).
• Build and maintain Endevor automation interfaces using APIs/CLI and wrappers.
• Develop REXX utilities and Python automation for Endevor lifecycle actions and metadata capture.
• Implement Jenkins pipelines invoking Endevor via API/CLI wrappers with secure credentials and promotion sequencing.
• Ensure end-to-end traceability of commits, builds, and promotions for auditability.
• Troubleshoot complex failures across the toolchain and deliver RCA with preventive fixes.
• Define and test backup/restore and DR procedures for Endevor repositories and wrappers.
• Leverage enterprise AI capabilities with validation to accelerate infrastructure analysis while handling sensitive data.

Skills

Endevor platform engineering

Jenkins CI/CD

Wrapper API/CLI development

REXX automation

Python scripting

Security and auditing

AI-assisted workflows validation

Cloud technologies

Troubleshooting and RCA

Education

Formal infrastructure engineering training or certification

Tools

CA-Endevor

Jenkins

REXX

Python

RACF/ACF2/TSS

API/CLI wrappers

Job description

You belong to the top echelon of talent in your field. At one of the world's most iconic financial institutions, where infrastructure is of paramount importance, you can play a pivotal role.

As an Infrastructure Engineer III at JPMorganChase within the Corporate Technology team, you utilize strong knowledge of software, applications, and technical processes within the infrastructure engineering discipline. Apply your technical knowledge and problem-solving methodologies across multiple applications of moderate scope.

Job responsibilities

• Engineer and govern the Endevor inventory model (environments/systems/subsystems/types/stages/mappings) aligned to SDLC, release governance, and separation of duties.
• Configure and maintain processors / generate procedures to enable deterministic builds (compile/link/edit flows, copybook/include handling, and middleware hooks such as DB2/CICS/IMS where applicable).
• Build and maintain Endevor automation interfaces using supported APIs/CLI plus custom wrapper services/scripts, including versioning, backward compatibility, error contracts, and usage standards.
• Develop Python automation and wrapper tooling to orchestrate Endevor lifecycle actions (create/update packages, move/generate/promote), capture metadata/evidence, integrate with approvals, and publish results to downstream systems. Develop REXX utilities for z/OS-side automation (inventory queries, dataset/member validation, job/JCL generation, operational tooling, exception reporting), integrating with wrapper interfaces where needed.
• Implement and support Jenkins pipelines (pipeline-as-code) that invoke Endevor via API/CLI wrappers, manage credentials securely, submit/monitor batch steps when required, and enforce promotion sequencing.
• Implement traceability and provenance end-to-end: map commit-build-package identifiers, capture promotion history, label builds/releases, and support audit evidence retrieval.
• Troubleshoot complex failures across the toolchain (processor failures, package conflicts, wrapper/API errors, Jenkins pipeline breaks, inventory drift), delivering RCA and implementing preventive fixes.
• Define, test, and execute backup/restore and DR procedures for Endevor repositories, critical datasets, and wrapper components, including routine DR exercises and validation evidence.
• Uses enterprise-authorized AI capabilities within the work environment to accelerate infrastructure analysis and design documentation, validating outputs and handling operational data according to sensitivity and security requirements.
• Applies reuse-first, AI-assisted approaches to identify recurring capacity risks and improve remediation workflows, ensuring changes are validated and aligned to resiliency and security expectations.

Required qualifications, capabilities, and skills

• Formal training or certification on infrastructure engineering concepts and 3+ years applied experience
• Endevor platform engineering: configure/operate CA-Endevor (inventory models, processors/generates, packages/promotion rules), perform upgrades/maintenance, and ensure stability/DR readiness.
• CI/CD delivery with Jenkins: build pipeline-as-code and shared libraries to automate build/test/promote flows, enforce sequencing, approvals, and environment-specific controls.
• API/CLI + custom wrapper enablement: develop and support versioned wrapper interfaces around Endevor APIs/CLI with consistent error handling, logging, and operational supportability.
• REXX & Python automation: create REXX utilities for z/OS-side operational automation and Python services/scripts for orchestration, integrations, evidence/metadata capture, and notifications.
• Security, traceability, and reliability: implement least-privilege access and audit logging (RACF/ACF2/TSS + Endevor), ensure end-to-end traceability (commit-build-package), and lead troubleshooting/RCA across Endevor/Jenkins/wrappers.
• Demonstrated experience using enterprise-authorized AI capabilities within the work environment to support infrastructure engineering workflows with strong validation habits and awareness of data sensitivity.
• Ability to review and validate AI-assisted recommendations before implementation, escalating when uncertain and ensuring outcomes align to resiliency, security, and auditability expectations.
• Strong knowledge of one or more scripting languages
• Experience with multiple cloud technologies (ability to operate in and migrate across public and private clouds)