Mainframe z/OS CICS/MQ Systems Programmer/Administrator

Job Description:

About DXC

DXC helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures and ensuring security and scalability across public, private and hybrid clouds. The world’s largest companies and public sector organizations trust DXC to deploy services to drive new levels of performance, competitiveness, and customer experience across their IT estates. Our more than 125,000 people in 70-plus countries are entrusted by our customers to deliver transformative technologies to ensure the success, safety and well-being of businesses and people around the world. By combining strengths and expertise globally, we create solutions and deliver greater outcomes for customers across their entire IT estate. Learn more about how we deliver excellence for our customers and colleagues at dxc.com In Spain, we are one of the main leaders in the IT market. We have nearly 8,000 professionals, distributed in thirteen locations, with centers of excellence in cutting-edge technologies such as Cloud, Business Intelligence, AI, or Automation among many others, serving more than 200 customers from all industries in the public and private sectors. We work with leading companies in the country that trust us to guide their digital transformation. We develop active policies of diversity and inclusion of people with disabilities, and we are proud to have a representation of approximately 49% of female professionals.

About the Team / Offering - Global Infrastructure Services - Infrastructure Services

DXC Global Infrastructure Services (GIS) manages and modernizes IT infrastructure for the world's largest enterprises through agentic, platform-led operations. We deliver cloud, security, workplace, infrastructure and business-process services that shift operations from reactive support to proactive, outcome-driven service delivery at scale, with human-in-the-loop governance.

DXC Infrastructure Services deliver agentic operations through DXC OASIS to manage large-scale, mission-critical environments. Autonomous, policy-governed agents anticipate issues, optimize performance, and support remediation with human-in-the-loop control, shifting operations from reactive support to pre-emptive, resilient service delivery.

About the Role

The CICS/MQ Systems Programmer/Administrator plays a critical role in maintaining the stability, security, and performance of mission-critical z/OS CICS Transaction Server and IBM MQ messaging environments. This position is responsible for the installation, customization, and ongoing maintenance of CICSplex and MQ network infrastructure that underpins high-volume transaction processing across the organization.

In this role, the administrator delivers 24x7 support for system software issues, performs proactive performance tuning, and manages complex upgrade and configuration projects to ensure continuous availability and reliability. The role also encompasses backup and recovery operations, security and audit compliance, disaster recovery testing, and dataset management, all of which are essential to safeguarding enterprise transaction systems.

Beyond the technical scope, this position requires strong leadership capabilities, including mentoring team members, coordinating project activities, and driving performance management within the team. The successful candidate will combine deep technical expertise in CICS and MQ systems with the ability to lead moderately complex client-driven and internal initiatives.

Essential Job Functions

• Maintain CICS region and MQ queue manager procedures, startup JCL, and configuration files to ensure optimal performance and operation.
• Execute backups of CICS Global Catalog, Local Catalogs, and MQ Queue Manager (QMGR) data sets, and perform maintenance/cleanup of logs and datasets.
• Provide 24x7 support for system software-related issues to ensure availability and reliability of CICS Transaction Server and MQ Messaging systems.
• Perform change management functions, including ticketing and adherence to change control processes.
• Conduct data security audits to collect compliance evidence, identify non-compliances, and enforce security standards.
• Install and upgrade CICS Transaction Server, MQ, and related sub-products.
• Apply preventative and corrective maintenance PTFs and HIPER PTFs to test and production system software libraries.
• Enforce CICS/MQ security and audit conformance in compliance with relevant regulations and standards.
• Perform disaster recovery drill exercises to test organizational preparedness and response capabilities.
• Configure and optimize performance using CICS System Initialization Table (SIT) and MQ CSQZPARM parameters.
• Provide emergency system restart and problem resolution to maintain online availability of CICS regions and MQ queue managers.
• Allocate, maintain, move, and tune CICS and MQ datasets, including VSAM files, page space, log streams, and queue manager logs.
• Utilize CICS Monitoring Facility (CMF), CICS Trace, and MQ Trace facilities to monitor performance, diagnose problems, and audit compliance.
• Lead moderately complex client-driven and internal projects, including system upgrades.
• Research and resolve system software-related issues, providing timely and effective solutions.
• Tune and review memory/resource consumption based on daily performance reporting and online monitoring.
• Interface with Change Support and vendor software support to resolve system software problems.
• Collaborate with Automation teams to provide automated responses to system situations requiring intervention.
• Provide team leadership, mentoring, guidance, task assignment, and performance coaching to team members.
• Create and maintain technical documentation, including procedures, standards, and CICS RDO and MQ Object Definition knowledge base articles.

Basic Qualifications

• Bachelor's degree in computer science, information systems, or a related field.
• 5+ years of experience in mainframe CICS Transaction Server and MQ Messaging systems programming/administration.
• Strong understanding of CICSplex and MQ architecture, resource administration, and system programming concepts.
• Proficiency in z/OS operating system and JCL.
• Knowledge of CICS/MQ performance tuning and optimization techniques (e.g., WLM, storage management).
• Experience with data security and compliance standards, particularly within CICS/MQ.
• Excellent problem-solving and troubleshooting skills, including system dump analysis.
• Strong communication and interpersonal skills.
• Strong team leadership skills.
• Strong level of English and Spanish.

Other Qualifications

• Certification in CICS, MQ, or a related IBM middleware field.
• Experience with specific CICS/MQ features and technologies (e.g., CICS Web Services, MQ Clustering, MQ/CICS Bridge).
• Knowledge of scripting languages (e.g., REXX, CLIST).
• Experience with automation tools for z/OS system management.

Why DXC? / Life at DXC

At DXC, you’ll join an employer of choice with strong values and a people-first culture built on inclusion, belonging and learning. You’ll find real opportunities for professional development through meaningful work on leading projects for market reference clients, using leading technologies across the IT sector. We support flexibility and work-life balance, foster an excellent work environment, and invest in continuous learning through DXC University with unlimited certifications. We act with integrity and a strong sense of corporate citizenship, building an inclusive culture with community impact. It’s also a place to build for the long term, with stable employment and a competitive package of social benefits-so brilliant people can advance their careers while helping our customers succeed.

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