Mainframe (REXX/zOS) Developer – Onsite (TN/FL/PA/NJ)

Job Description

We are looking to staff a MF position where the candidate needs to work from client location 4 days a week

Nashville, TN
Lake Mary, FL
Pittsburgh, PA
Sommerset, NJ

Role Description

Impact

Own the mainframe automation strategy and roadmap to improve reliability, detection, and recovery.
Scale automated solutions across infrastructure domains (batch, storage, networking, middleware) using APIs, orchestration, and infrastructure-as-code.
Architect and govern multi-site failover automation; maintain and test DR playbooks and runbooks.
Define and operationalize SLOs/SLIs, error budgets, and alerting standards; reduce MTTA/MTTR through event correlation and automated remediation.
Instill disciplined engineering: peer reviews, version control, change management gates, and automation standards aligned to risk/compliance.
Build and lead a high-performing team; develop talent in REXX, z/OS automation, DevOps, and integration.
Partner across platforms, applications, cyber, risk, and compliance to prioritize automation investments that reduce toil and operational risk.
Own KPIs and continuous improvement cycles; communicate performance, risks, and outcomes to senior stakeholders.

Responsibilities

Technical leadership and hands-on guidance in:
Mainframe automation frameworks and system state management
Expert-level REXX scripting; deep z/OS operating environment expertise
Designing/supporting automated failover in multi-site environments
RESTful APIs and systems integration for orchestration
DevOps tooling (e.g., Jenkins including Zowe plug-in, Ansible) and CI/CD for mainframe workloads
ServiceNow ITSM workflows and automation
AIOps/event-management platforms (e.g., Moogsoft or equivalent)
SQL, JCL, ISPF/TSO and related toolchains
Governance, risk, and controls:
Strong change control discipline (Git, peer reviews, deployment safeguards)
High-quality documentation: runbooks, process/architecture standards
Alignment with audit and compliance requirements
Stakeholder and vendor management:
Partner with infrastructure leaders and vendors; drive outcomes via SLAs and measurable KPIs
Translate functional requirements into automation workflows; steward solution documentation and training
Operations ownership:
Troubleshoot and drive root-cause fixes; prepare detailed problem reports
Resilience/DR: hands-on experience with GDPS and Safeguarded Copy
Collaborate on performance tuning, capacity planning, and cost efficiency

Leadership Expectations

Lead engineers/SREs with clear objectives, coaching, and succession planning; foster documentation and knowledge sharing.
Shape automation standards across technology services group ; align priorities to business outcomes and risk posture.
Present strategy, results, and risks to senior technology leadership; influence cross-platform adoption.
Practice financial stewardship for tooling, licensing, and infrastructure; identify savings via automation and improved change success rates.

Qualifications

Extensive experience leading mainframe automation in large, multi-site enterprises
Expert REXX and deep z/OS knowledge with a track record of robust automation delivery
Demonstrated success implementing resilience/DR automation (GDPS, Safeguarded Copy)
Proficiency with DevOps tooling (Jenkins incl. Zowe plug-in, Ansible) and REST API integrations
ServiceNow ITSM automation; familiarity with AIOps/event correlation platforms
Strong SQL, JCL, ISPF/TSO; ability to mentor across these domains
Proven change management discipline (Git, peer reviews) and excellence in documentation/runbooks
Exceptional communication skills for complex topics, training, and stakeholder engagement
Experience owning KPIs, quarterly improvement cycles, and executive-level reporting