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# Mainframe MQ Engineer

- **Company:** Intone Networks
- **Location:** Phoenix, AZ, United States
- **Contract:** Permanent contract
- **Skills:** Customer Information Control System (CICS), Cluster Analysis, Middleware, IBM Parallel Sysplex, Monitoring of Systems, Job Control Language (JCL), IBM WebSphere MQ, Rexx (Programming Language), Network Security, Mainframes, Network Connections, Queueing Systems, IBM Resource Access Control Facility, TCP/IP, Z/OS, Data Logging, Tso/ispf, System Availability
- **Published:** November 8, 2026
- **Apply:** https://www.careerbuilder.com/job-details/mainframe-mq-engineer-phoenix-az--44495ab4-3030-4cf2-9e08-4f8af089a50a

## About the Role

Mainframe Computer, Messaging Middleware, High Availability, Mainframe Computer, IBM CICS (Customer Information Control System), IBM z-OS Operating System, IP Multimedia System (IMS), IBM WebSphere MQ (Message Queue), Testing, Network Security, Required

 * Strong hands-on experience with IBM MQ for z/OS
 * Strong knowledge of Queue Managers
 * Strong knowledge of Local and Remote Queues
 * Strong knowledge of Transmission Queues
 * Strong knowledge of MQ Channels
 * Strong knowledge of Channel Initiators
 * Strong knowledge of Listeners
 * Strong knowledge of Dead Letter Queues
 * Strong knowledge of Distributed Queuing
 * Strong knowledge of MQ Clustering
 * Strong knowledge of MQ security
 * Strong knowledge of MQ logging and recovery
 * Strong knowledge of MQ monitoring and troubleshooting
 * Strong experience with z/OS
 * Experience with JCL
 * Good understanding of TCP/IP and network connectivity
 * Experience with MQ problem determination and production support
 * Experience supporting high-volume, business-critical mainframe environments
 * Understanding of change, incident, and problem management processes

Preferred

 * CICS / MQ integration
 * IMS / MQ integration
 * RACF
 * TCP/IP
 * REXX
 * TSO/ISPF
 * SDSF
 * SMP/E
 * Sysplex environments
 * MQ Queue Sharing Groups
 * Automation/monitoring tools
 * Enterprise scheduling tools such as CA7

## Description

We are seeking an experienced Mainframe IBM MQ Engineer to support highly available, business-critical mainframe environments in Phoenix, Arizona on a 12+ month contract basis. The successful candidate will be responsible for the administration, configuration, monitoring, performance, security, maintenance, troubleshooting, and lifecycle management of IBM MQ infrastructure on z/OS, working closely with application, CICS, IMS, network, security, operations, and other mainframe infrastructure teams.

Responsibilities

 * Install, configure, administer, and support IBM MQ for z/OS environments.
 * Configure and maintain MQ queue managers, queues, channels, listeners, transmission queues, and other MQ objects.
 * Perform day-to-day administration and monitoring of MQ environments.
 * Configure and support distributed queuing and communication between queue managers.
 * Configure, administer, and troubleshoot IBM MQ clusters.
 * Monitor queue depths, channel status, queue manager availability, message flow, and overall MQ infrastructure health.
 * Troubleshoot production problems including channel failures, queue manager issues, message delivery problems, messages remaining on queues, connectivity issues, security/authorization failures, and application-to-MQ connectivity issues.
 * Perform problem determination and root cause analysis for MQ-related production incidents.
 * Support MQ recovery and restart activities.
 * Support MQ upgrades, migrations, maintenance, patching, and lifecycle management.
 * Support high-availability and disaster-recovery requirements for MQ environments.
 * Configure and support MQ connectivity with mainframe applications, including CICS and IMS.
 * Partner with RACF/security teams to implement and maintain MQ security.
 * Support channel authentication, connection authentication, TLS, and MQ access controls.
 * Analyze MQ performance and implement tuning recommendations.
 * Develop and maintain JCL, operational procedures, automation, and technical documentation.
 * Participate in production changes, implementations, incident management, and problem management.
 * Provide on-call and after-hours support for critical production issues when required.