Do you want to work with one of Sweden’s most critical IT infrastructures? We are looking for an Infrastructure Engineer / System Programmer (SysProg) to join our mainframe team and help operate and modernise our z/OS platform in a highly secure, business critical environment. The role You will be part of a skilled mainframe team responsible for the stability, availability, and evolution of our z/OS environment. The role combines deep technical system programming with operational responsibility and close collaboration across IT and the business. In this role you will play a key role in: • System programming and maintenance of z/OS and related subsystems • Work closely with domain owners for MQ on z/OS, IMS and/or DB2 (depending on your profile) • Software installation, upgrades, and maintenance using SMP/E • Incident investigation, problem management, and operational support • Manage certificates, encryption, and security related configurations • Participate in on call duty and planned infrastructure activities, such as datacentre swaps and major changes • Contribute to modernisation, automation, and continuous improvements Your profile • Has solid experience working with IBM z/OS in a system programming or senior infrastructure role • Strong knowledge of software maintenance and installation using SMP/E • Solid understanding of mainframe security, including certificates, PKI, encryption, and key management • Is comfortable working in 24/7, high availability environments • Is structured, proactive, and enjoys taking ownership • Enjoys working both independently and as part of a small expert team • Curious and motivated to continuously develop your skills • Calm and methodical under pressure in incident situations Nice to have • Cross platform integration (z/OS ↔ distrib…

Senior Infrastructure Engineer