Z/OS Systems EngineerUnited AirlinesHouston TX or Chicago IL- hybrid onsite 3 days per week 3 month initial contract- will likely go permanent or at least extend thereafter USC or GC preferred, may consider GC-EAD or TN visa but this is C2H- no sponsorship offered.Job DescriptionThe Digital Technology team is comprised of many talented individuals all working together with cutting-edge technology to build the best airline in the history of aviation.Our team designs develops and maintains massively scaling technology solutions brought to life with innovative architectures data analytics and digital solutions.Job Overview and ResponsibilitiesThe Senior z/OS Systems Engineer provides critical support for IBM mainframe infrastructure ensuring optimal performance and reliability of z/OS environments.This role combines hands-on technical expertise in mainframe hardware and software with strong problem-solving and collaboration skills across multiple support teams.System Operations MaintenanceProvides support for IBM mainframe hardware and software technologiesMonitors daily operations of environmentInstalls configures and maintains IBM ISV mainframe softwareRequires individual to be on the on call rotation - will be expected to work non-business hours to resolve production problems and perform scheduled off-hour activitiesProblem Resolution CollaborationAnalyzes and coordinates resolution of problemsInterfaces with vendor support groups and other departments to ensure proper escalation and coordination towards problem resolutionInterfaces with Storage Management CICS Support DB2 Support IDMS Support Capacity Planning Operations Coverage groups and applications staff as requiredDevelopment TestingDevelops IBM mainframe solutions in support of applications development projectsPerforms acceptance testing of hardware and software solutionsDocumentation ReportingDevelops publishes and maintains documentation related to projects hardware and software configuration and installationPrepares status reports and problem summaries as requiredQualificationsExternal Whats needed to succeedMinimum Qualifications:Bachelor's degree3 years experience with IBM mainframesWorking knowledge of the following are required:Z/OS operating systems including JES2IBM Assembler Language programmingParallel Sysplex clustering technologyUnix System Services USSIPCS SMP/ETCP/IP / OSA / VTAMWLM - IBM Mainframez/OS and JES2IBM Assembler JAVA Cobol C REXXMust be legally authorized to work in the United States for any employer without sponsorshipSuccessful completion of interview required to meet job qualificationReliable punctual attendance is an essential function of the positionWhat will help you propel from the packPreferred Qualifications:3-10 years experience with IBM mainframes