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Job Title


Mainframe z/OS Systems Administrator


Company : Raise


Location : Toronto, Ontario


Created : 2025-04-14


Job Type : Full Time


Job Description

Duration: 6 Months contract- will convert to an fulltime Location: TORONTO, ON (onsite 3 days per week- Tuesday-Thursday) Interview: Webex; 2 rounds panel (1st round HM, 2nd round other SMEs) Job Summary Seeking a talented and experienced Mainframe z/OS Systems Administrator to join our team in supporting and managing our WebSphere Application Server for z/OS and z Connect Enterprise Edition (zCEE) instances on the Mainframe. The ideal candidate will have a strong background in Mainframe Technology and possess experience supporting or have an interest in learning and supporting WebSphere Application Server for z/OS and zCEE on z/OS Mainframe. Job Description What will you do? Working in the middleware support team with a primary focus to provide support for WebSphere Application Server for z/OS and zCEE instances on the z/OS Mainframe Platform. Installation, configuration, and maintenance of WebSphere Application Server for z/OS and zCEE on the Mainframe platform. Monitoring and performance tuning of WebSphere Application Server for z/OS on the Mainframe Platform. Customize the product to adhere to security standards: Implementation of security measures and best practices for WebSphere Application Server for z/OS on the Mainframe platform. Collaboration with development teams to deploy and manage applications on WebSphere Application Server for z/OS in the Mainframe environment. Ensure that changes are documented in the change management system and emergency changes destined for the production systems are within the organizational standards. Provide 24x7 environment support which requires evening/weekend implementation involvement and On-Call support. What do you need to succeed? Must have: 5+ years of Mainframe z/OS experience installing, supporting, and troubleshooting issues in the Mainframe environment. General key areas of knowledge should be SMP/E, ISPF, SDSF, JES2, SMF, RMF, VSAM, USS, IPCS, Etc. Good knowledge of security LDAP and RACF products. Good knowledge of Certificate Management with RACF and TLS (setup and troubleshooting). Familiarity with scripting languages for automation and monitoring such as JCL, REXX, TSO, Unix Shell scripting, Python, Etc. Understanding of TCP/IP and protocols and well as DVIPA and SYSPLEX DISTRIBUTOR. Supporting a 24x7 environment which requires evening/weekend implementation involvement and On-Call support. The candidate must be willing to convert to an FTE Nice to have: Working experience on WebSphere Application Server for z/OS and z/OS Connect Enterprise Edition experience. Familiarity with scripting languages for z/OS WAS, Jython. Experience with Java Application Monitoring and Performance Monitoring tools, preferably Dynatrace. Understanding of connectivity CICS, DB2, IMS, MQ concepts and how it integrates with middleware products. Experience working with Agile methodology integrated with JIRA and Confluence tools. Job Skills: Adaptability, Critical Thinking, Decision Making, Detail-Oriented, Industry Knowledge, Information Technology Infrastructure Library (ITIL), Information Technology Trends, Systems Software, Time Management