Mainframe Infrastructure Engineer III

JPMorgan Chase & Co.; Kentucky; On-site; USD 110,000 - 140,000; Full time

Job summary

JPMorgan Chase & Co. is seeking an Infrastructure Engineer III to lead Endevor-based workflows within Corporate Technology.

You will design, automate, and govern build and promotion processes, while integrating Python/REXX tooling and Jenkins pipelines across z/OS environments. You will apply strong scripting, security, and audit practices and leverage AI-enabled capabilities to improve reliability and resiliency in a complex infrastructure landscape.

Qualifications

• 3+ years of applied experience in infrastructure engineering.
• Endevor platform engineering: configure/operate CA-Endevor (inventory models, processors/generates, packages/promotion rules).
• CI/CD delivery with Jenkins: pipeline-as-code to automate flows, sequencing and approvals.
• API/CLI + custom wrapper enablement: versioned wrappers with error handling and logging.
• REXX & Python automation: z/OS automation and orchestration tools.
• Security, traceability, and reliability: implement least-privilege access and audit logging.
• Demonstrated experience using enterprise AI capabilities to support workflows with validation.
• Ability to review and validate AI-assisted recommendations for resiliency and security.
• Strong knowledge of scripting languages.
• Experience with multiple cloud technologies (public/private).

Responsibilities

• Engineer and govern Endevor inventory models aligned to SDLC and duties.
• Configure and maintain processors to enable deterministic builds and middleware hooks.
• Build and maintain Endevor automation interfaces using APIs/CLI and wrappers.
• Develop Python automation and REXX utilities for Endevor lifecycle actions.
• Implement Jenkins pipelines that call Endevor via wrappers and manage credentials.
• Ensure traceability of commit-build-package history and promotion labeling.
• Troubleshoot toolchain failures and deliver RCA and preventive fixes.
• Define and test backup/restore and DR procedures for Endevor repos.
• Utilize enterprise AI capabilities to accelerate infrastructure analysis and design.
• Apply reuse-first approaches to identify capacity risks and drive remediation.

Skills

Endevor platform engineering

Jenkins CI/CD

Python automation

REXX scripting

Scripting languages

Security & auditing

AI validation

Education

Formal training or certification in infrastructure engineering

Tools

Endevor

CA-Endevor

Jenkins

z/OS tooling

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)