• Perform system programming, maintenance, and optimisation of z/OS and related subsystems
• Collaborate with domain owners across MQ on z/OS, IMS, and DB2 (depending on your expertise)
• Manage software lifecycle activities, including installation, upgrades, and maintenance using SMP/E
• Investigate incidents, perform problem management, and provide operational support
• Manage certificates, encryption, and security configurations
• Participate in on-call rotation and major infrastructure activities (e.g., datacentre transitions)
• Drive modernisation, automation, and continuous improvement initiatives

• Experienced in IBM z/OS system programming or a senior infrastructure role
• Strong expertise in software maintenance and installation (SMP/E)
• Solid understanding of mainframe security (PKI, certificates, encryption, key management)
• Comfortable in 24/7 high-availability environments
• Structured, proactive, and take ownership of your work
• Thrive both independently and in a collaborative team setting
• Curious, continuously learning, and eager to develop your technical skills
• Calm, analytical, and methodical in high-pressure incident situations

• Experience with cross-platform integration (z/OS with distributed systems)
• Background in financial services or other regulated industries
• Knowledge of automation, monitoring, and alerting on mainframe platforms
• Familiarity with additional z/OS subsystems or middleware

• A key role in Sweden’s financial market infrastructure
• A collaborative environment with highly skilled technical experts
• Competitive benefits and flexible working conditions
• Opportunities to shape and modernise critical systems

This is an interim assignment with a start date as soon as possible and until the end of 2026.

As part of the recruitment process, the client will conduct background checks on candidates who progress to later stages.

If this consultancy opportunity aligns with your experience, please click ‘apply now’ and submit your updated CV, clearly highlighting your expertise in the must-have competencies required for the role. We look forward to receiving your application and speaking with you as soon as possible.

#LI-DNI