Mainframe Engineer - z/OS Storage and DB2 Administration

Duration: 6+ Months

Location: 100% Remote

Client is looking for deep dive DB2 z/OS data archival/restore strategies (that a Db2 z/OS admin should know) and z/OS storage lifecyle (DFSMS, HSM, volumes, tapes).

Responsibilities:

Administer and support IBM z/OS mainframe environments.

Perform Mainframe Storage Administration, including DASD, datasets, volumes, catalogs, and storage allocation.

Manage and support DFSMS, SMS, HSM, and storage policies.

Monitor storage capacity, performance, availability, and utilization.

Perform DB2 for z/OS administration, including database maintenance, monitoring, backup, recovery, and performance tuning.

Manage DB2 objects, tablespaces, indexes, buffer pools, logs, and storage groups.

Execute and troubleshoot DB2 utilities such as REORG, RUNSTATS, COPY, RECOVER, LOAD, and CHECK DATA.

Troubleshoot DB2 locking, deadlocks, performance, and connectivity issues.

Support z/OS system maintenance, upgrades, and production troubleshooting.

Develop and maintain JCL for operational and administrative activities.

Use JES2, SDSF, TSO, and ISPF for system monitoring and administration.

Support disaster recovery, backup/recovery, and business continuity activities.

Collaborate with application, infrastructure, database, and operations teams to resolve production issues.

Qualifications:

8+ years of hands-on Mainframe engineering experience.

Strong DB2 for z/OS Administration experience.

Experience with DFSMS, SMS, HSM, DASD, and dataset management.

Strong Mainframe Storage Administration experience.

Strong knowledge of JCL, JES2, SDSF, TSO, and ISPF.

Experience with DB2 utilities, backup/recovery, and performance tuning.

Strong troubleshooting and production support experience.

Experience working in large-scale, enterprise mainframe environments.