z/OS Mainframe Operator

Company: ALTA IT Services
Location: Arlington
Posted on: June 24, 2025

Job Description:

z/OS MAINFRAME COMPUTER OPERATOR Location: US-VA-Arlington – onsite US Citizen with Public Trust clearance (or eligibility) Hourly Rate: $75.00/hr. W2. Benefits available ALTA IT Services has a contract to hire opening for a z/OS Mainframe Computer Operator to support a federal customer in the DC Metro area. Computer Operators are responsible for the running of all computer operations. They monitor, maintain, and control the operation of the mainframe hardware and software. The operator starts and stops system tasks, monitors the system consoles for unusual conditions, and works with the system programming and production control staff to ensure the health and normal operation of the systems. They work in a variety of different industries. The Command Center is a 24/7 shop, and in some cases, they may work onsite or remotely and must be flexible. Duties and Responsibilities of the z/OS Computer Operator: The roles and responsibilities of a computer operator include, but are not limited to: Monitoring z/OS Master Consoles in Production, Development, and Test environments, responding and or replying to messages, using MVS, JES2 commands, notifying the appropriate personnel via email, phone if action is needed. Works with the system programming and production control staff to ensure the health and normal operation of the system. The operator starts and stops system tasks as requested. Maintaining operations by monitoring error messages and making proper adjustments. Maintaining incident logs for any issues that arise. Making appropriate changes to SOP documentation, as and when needed. Perform the initial level of troubleshooting. Maintaining client confidence and protecting operations by keeping sensitive information confidential. Respond to incoming telephone calls and mail inquiries from both internal and external customers regarding computer-related problems. Participate in Disaster Recovery testing on an annual basis. Must be capable of working efficiently with minimal supervision. Should have strong communication skills and be able to follow directions. In some cases, you may be required to work rotating shifts, including nights, weekends, and holidays, depending on operational requirements. Must be flexible. Must be able to work with others, contribute to team efforts, and have a positive attitude. IPL (initial program load) experience in loading of the operating system into the computer's main memory from the HMC console. Utilize OMEGAMON to monitor and manage the performance and availability of individual z/OS systems. Use MVS system commands to display device status and channel paths, and display. Familiar with Control-O, a console automation product. Familiar with Control-M Enterprise IT Job Scheduling and Workload Automation Familiar with monitoring tools such as Omegamon SYSVIEW, SMF, Mainview Experience working with Incident, Change & Problem Management reporting tools such as ServiceNow for tracking and resolving IT issues. Working knowledge of JES2, SDSF, TSO, CICS, ISPF, DB2, JCL, SYSLOG, DLM Virtual Tape Management System Must be able to pass a background check. QUALIFICATIONS: Although it is not essential, a degree in Information Systems is strongly preferred. Must have at least 5 years of experience working with computers and various systems. Must be able to demonstrate an in-depth knowledge of computer functions. Must have both analytical and problem-solving skills, as well as the ability to troubleshoot any computer problems that could arise. Time management skills are essential as you need to ensure all requests, ServiceNow tickets, and queries are completed on time. Minimum Citizenship Status Required: Must be a U.S. Citizen Please send an updated resume to Melissa McNally via mmcnally@altaits.com for consideration. System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan. System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law. M-MM LI-MM DI-MM Ref: 855-IT Baltimore

Keywords: ALTA IT Services, Silver Spring , z/OS Mainframe Operator, IT / Software / Systems , Arlington, Maryland