Senior Mainframe CICS/MQ Administrator

About the Position

We are looking for a Senior Mainframe CICS/MQ Administrator to join our Mainframe Operations team in Bydgoszcz, Poland. The successful candidate will be responsible for the administration, maintenance, support, and optimization of IBM CICS and MQ environments running on IBM z/OS platforms. The role focuses on ensuring high availability, stability, security, and performance of mission-critical online transaction processing systems while supporting customers and internal delivery teams.

Responsibilities

• Install, configure, and maintain CICS TS and MQ subsystems on z/OS. Manage PTF applications, release upgrades, and lifecycle maintenance for both and related third-party software.
• Design, implement, and support CICS and MQ environments, to ensure continuous availability.
• Creation and customization of new CICS regions tailored to business requirements.
• Customization, proactive monitoring, and advanced troubleshooting of the CICS and MQ environments.
• Deep-dive analysis of system dumps and traces to identify root causes.
• Analyzing and enhancing the performance and stability of the CICS and MQ environments.
• Plan, script, and execute disaster recovery (DR) procedures for CICS and MQ environments, participating in regular DR testing.
• Provide rotational 24/7 on-call support for critical production systems.
• Prepare technical documentation.

Requirements

• 8+ years of hands-on experience as a Mainframe Systems Programmer for CICS and MQ on z/OS.
• Extensive experience with mainframe performance monitors (e.g., BMC AMI Ops, CA Sysview).
• Strong understanding of CICS and MQ architectural concepts.
• Exceptional analytical skills with the ability to navigate high-pressure, critical-impact outages and deliver clear technical communications to stakeholders.
• Change and Incident Management processes.

Nice to Have

• IDMS hands-on experience.

Soft Skills

• Strong analytical and troubleshooting capabilities.
• Excellent customer focus.
• Ability to work independently and within global teams.
• Effective communication and documentation skills.
• Ability to prioritize and manage multiple activities simultaneously.
• Continuous learning mindset.

We Offer

• Access to training and certifications.
• Remote or Hybrid mode of work (only max. 2 times per month based on your location and contract type).
• Wellbeing programs & work-life balance - integration and passion sharing events.
• Private medical and dental care.
• Benefits platform – shopping, cinema, sport etc.
• Co-funding of sport activities, e.g., Multisport & OK system cards, b-active program.
• Gift packages for special occasions: Easter, Christmas, Children’s Day.
• Appreciation for seniority: additional days off, Atos Jubilee gifts.
• Charity and eco initiatives.
• Flexible working hours.

What Happens Next?

• Quick conversation with HR.
• Interview with a Manager/IT expert/project representative (via MS Teams).
• Feedback (1-5 business days after the interview).

About the Company

Atos Group is a global leader in digital transformation with c. 56,000 employees and annual revenue of c. €7.2 billion (at the go-forward perimeter), operating in 54 countries under two brands - Atos for services and Eviden for products and systems. European number one in cybersecurity and a leader in cloud, Atos Group is committed to a secure and decarbonized future and provides tailored AI-powered, end-to-end solutions for all industries. Atos Group is listed on Euronext Paris.

Eviden is the Atos Group brand focused on cybersecurity products, mission-critical systems and vision AI. A trusted partner to public and private sector organizations, Eviden deploys advanced analytics capabilities and helps ensure the robustness, continuity and resilience of its customers’ operations. Leveraging more than 2,200 experts and 720 patents, Eviden helps protect people, data and critical infrastructures worldwide, at the convergence of intelligence, sovereignty and trust.

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