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Sr Mainframe Engineer

Job

Econosoft

Malvern, PA (In Person)

Full-Time

Posted 3 days ago (Updated 19 hours ago) • Actively hiring

Expires 6/12/2026

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Job Description

Primary Responsibilities Operating System Support:
Install, maintain, and upgrade z/OS, DB2, CICS environments across multiple LPARs, including performing HCD changes for I/O subsystem migrations.
Workload Migration:
Lead strategic projects to port legacy z/OS applications (CICS/DB2/WebSphere) to modern architectures like Microfocus , Tomcat , or SQL Server .
Database Collaboration:
Assist DB2 DBAs with version upgrades (e.g., v11 to v12) and monitor Distributed Data Facility (DDF) activity.
Monitoring & Optimization:
Replace and manage system monitoring tools (e.g., transitioning from Omegamon to
ASG-TMON
) to ensure 24/7 environment stability.
Technical Requirements Mainframe Core:
Deep proficiency in z/OS, JCL, ISPF, REXX, and SAS Programming .
Platform Breadth:
Hands-on experience with AIX (pSeries) , Linux , and Windows Server environments.
Messaging & Web:
Expert-level knowledge of IBM MQ , WebSphere (v5.1 through v8.5) , Tomcat , and Apache HTTP Server .
Hardware Management:
Familiarity with
HCD/HCM , HMC
, and fiber-attached storage/tape devices.
Legacy Tooling:
Experience with Easytrieve , COBOL , and Tivoli Storage Manager (TSM) .

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