Senior Mainframe IMS System Programmer (z/OS)

DXC Technology; Solna kommun; On-site; SEK 600,000 - 900,000; Full time

Job summary

DXC Technology seeks an experienced Mainframe IMS System Programmer to support, maintain, and enhance IBM IMS environments within z/OS. The role covers system administration, database and transaction support, performance tuning, security, and disaster recovery, with close collaboration with application and infrastructure teams.

The successful candidate will manage IMS Control Regions, DBRC, IMSplex components, and related configurations, while ensuring high availability and security.

Qualifications

• Bachelor’s degree in Computer Science, Information Systems, Engineering, or a related field.

Responsibilities

• Install, configure, maintain, upgrade, and troubleshoot IBM IMS in z/OS environments.
• Manage IMS Control Regions, DBRC, IMSplex components, IMS Connect, databases, transactions, and related configuration datasets.
• Support IMS database administration, including backup, recovery, image copies, reorganization, and integrity.
• Configure and maintain IMS transaction processing environments, including MPRs, BMPs, scheduling, routing, and workload management.
• Support IMS Connect and integration with distributed platforms, TCP/IP, APIs, IBM MQ, CICS, and other middleware solutions.
• Monitor and tune IMS system, database, transaction, region, and connectivity performance using OMEGAMON, MainView, and IMS facilities.
• Perform root-cause analysis for IMS issues, including dump, log, trace, and SYSLOG analysis.
• Maintain IMS security and compliance controls, including RACF integration and vulnerability remediation.
• Develop, maintain, and test IMS backup, restart, recovery, and disaster recovery procedures.
• Create and maintain JCL, procedures, scripts, automation, and operational documentation.
• Follow ITIL-based incident, problem, change, and release processes; participate in major incidents and on-call rotations.
• Collaborate with application, z/OS, CICS, DB2, MQ, storage, network, security, middleware, operations, and architecture teams.

Skills

IBM IMS

z/OS knowledge

JCL

RACF security

Root-cause analysis

Performance tuning

Communication & collaboration

Mainframe tooling

Education

Bachelor’s degree in Computer Science, Information Systems, Engineering

Tools

OMEGAMON

MainView

RACF

JES

TSO/ISPF

SMP/E

Job description

DXC Technology seeks an experienced Mainframe IMS System Programmer to support, maintain, and enhance IBM IMS environments within z/OS. The role covers system administration, database and transaction support, performance tuning, security, and disaster recovery, with close collaboration with application and infrastructure teams.

The successful candidate will manage IMS Control Regions, DBRC, IMSplex components, and related configurations, while ensuring high availability and security.