Mainframe Systems Engineer

Akaasa Technologies
Malvern, United States of America
6 days ago

Role details

Contract type
Permanent contract
Employment type
Full-time (> 32 hours)
Working hours
Regular working hours
Languages
English

Job location

Malvern, United States of America

Tech stack

Microsoft Windows
IBM AIX
Apache HTTP Server
Tomcat
Systems Engineering
Architectural Patterns
Customer Information Control System (CICS)
Cloud Computing
COBOL
Databases
IBM DB2
Linux
Disaster Recovery
Distributed Data Store
Middleware
IBM Hardware Management Console
Monitoring of Systems
Job Control Language (JCL)
IBM WebSphere MQ
Rexx (Programming Language)
Tivoli Management Framework
IBM Websphere Application Server
Interactive System Productivity Facility (ISPF)
Mainframes
Microsoft SQL Server
Windows Server
SAS (Software)
Management of Software Versions
Z/OS
Easytrieve
Omegamon
Microfocus

Job description

The Sr. z/OS Systems Engineer is responsible for the installation, maintenance, and optimization of the z/OS operating system and its associated subsystems. Unlike traditional storage-focused roles, this position emphasizes Middleware integration, Application Portability, and Modernization. You will be the primary technical lead for migrating legacy mainframe workloads to distributed platforms (Linux/AIX/Windows) and supporting high-availability messaging environments. 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., * 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.

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)., * Experience in Business Recovery/Disaster Recovery (DR) planning and execution.
  • Proven track record of cost-reduction through platform consolidation or "Mainframe-to-Cloud/Open-System" migrations.
  • Ability to mentor junior engineers and contractors during complex infrastructure shifts.

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