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Mainframe IMS Application DBA

TechVirtue LLCPhoenix, AZ🇺🇸United StatesPosted Sep 18, 2026

Quick Overview

Seniority
Mid Senior
Work mode
Hybrid
Location
Phoenix, AZ, United States
Posted
17 hours ago
EncryptionPhoenix

Job Description

Job Title: Mainframe IMS Application DBA
Location: Phoenix, AZ
Duration: Long Term Contract
The Role:
We are seeking an experienced Mainframe IMS Application DBA (IMS DBA Analyst) to manage and support IMS database environments in a high-availability enterprise setting. This role is responsible for database design support, performance optimization, data integrity, and backup/recovery operations for mission-critical applications running on IBM z/OS. 
Key Responsibilities:
  • Install, configure, and maintain IMS database environments (IMS DB). 
  • Support and manage different IMS database types: Full Function DB, Fast Path DB, HALDB (High Availability Large Databases).
  • Perform database administration activities: Database definition, allocation, and dataset management, REORGs and space management to maintain performance. 
  • Manage IMS control structures: DBD, PSB, ACB libraries, and IMS Catalog.
  • Execute and support IMS utilities: Load / Unload, Reorganization, Image Copy, Recovery utilities (e.g., DFSURGL0, DFSUICP0).
  • Monitor database performance and resolve issues: Access path inefficiencies, Space constraints, Application-related data issues, Abends and data inconsistencies. 
  • Collaborate with: Application development teams (DL/I access, database design), IMS System Programmers (performance and tuning), Operations teams (batch and online processing). 
  • Participates in design, development and implementation of complex Databases or maintenance and support of the infrastructure supporting IMS databases, often using new technologies and emerging methodologies. 
  • Manages multiple, moderately complex projects and may direct activities of a team related to special initiatives or operations. Routine accountability is for technical knowledge and capabilities as a team member or as an individual contributor. 
  • Design technical solution to match business application requirements 
  • Create process flow charts and related procedural documentation.
  • Perform database recovery of all types (Image Copy recovery, PIT recovery).
  • Provide independent application development support
  • Experience with Performance and Tunning
Required Skills & Qualifications:
  • Minimum 7 years of DBA experience supporting IMS databases in a z/OS environment using Sysplexed Data Sharing. Must have knowledge of Full Function, Fast Path and HALDB databases using Secondary Indexing, Logical Relationships, Sparsing Routines (Assembler), Replication, Compression, Encryption. 
  • Database performance and tuning, Database monitoring and troubleshooting, Physical database design and build, Backup and recovery
  • Strong experience with IBM z/OS environment
  • Hands-on experience as IMS Application DBA (IMS DB)
  • Experience with IMS utilities and DB maintenance activities
  • Experience troubleshooting: Database abends (Uxxx, S0Cxx), Data corruption or integrity issues. 
  • Familiarity with: JCL, TSO/ISPF, SDSF, REXX, Batch and online IMS environments (IMS DB/DC), IMS Database Administration Utilities, BMC utility and monitoring tools or equivalent.  
Preferred Qualifications:
  • Experience integrating IMS with: DB2, CICS, MQ, and distributed systems.
  • Experience with performance tools (e.g., OMEGAMON, MainView)
  • Exposure to IMS modernization (APIs, z/OS Connect)
  • Knowledge of scripting/automation (REXX)
  • Experience in large-scale IMS database migrations or consolidation
  • Exposure to data replication or data integration solutions
  • Experience in regulatory/compliance-driven environments (SOX, PCI, etc.)
  • Management procedures and/or tools (ISPW, Service Now). Experience with VISIO a plus.

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