2,118 Z Os jobs in the United States

• SENIOR LEVEL Z/OS ARCHITECT EXPERT WITH Z/OS SYSTEMS PROGRAMMING EXPERTISE
li>ARCHITECT, INSTALL, UPGRADE, TUNE THE Z/OS OPERATING SYSTEM (MAINFRAME ) FOR A GLOBAL (24X7) ENVIRONMENT
• HEAVY PROBLEM DETERMINATION EXPERTISE
• Z/OS FIXES
• EXPERTISE WITH Z/OS LEADING EDGE TECHNOLOGIES (Z 14, ETC.).
• DISASTER RECOVERY

• Ongoing maintenance (install, patching, upgrades, administration, etc.,) of the mainframe z/OS operating system, accompanying storage systems and systems software products (e.g., database, transaction server, security management, scheduling, report distribution, etc.), and UNIX Systems Services.
• Upgrades of mainframe and related storage.
• The candidate will be required to provide production off hour coverage (if necessary) and support periodic weekend implementations.

• The candidate must have experience with VTAM and TCP/IP.
• 10+ years of experience working with z/OS, JES2, SMP/E, TSO, IOCP/HCD. Basic IBM utilities (IDCAMS, IEFBR14, etc.) program product installations, working knowledge or the IBM virtual tape system and Unix System Services.
• Working knowledge of CICS, IMS, DB2 and AFP printing is a plus.
• Experience in using monitoring tools such as OMEGAMON.
• Working with an enterprise wide, large scale implementation.
• Excellent communications skills (Oral and written), interpersonal, and organizational skills are required.
• The candidate must have experience with mainframe CPU installs as a systems programmer consultant.

NTT Data is looking for a Mainframe z/OS Systems Programmer to join their team remotely.

Responsibilities:

Operating System Knowledge:

• Deep mastery of z/OS architecture, including IPL procedures, JES2/JES3 configurations, Sysplex management, SMF data collection, and parmlib customization.

• REXX for scripting and batch utilities
• JCL for job submission, parameterization, and workflow control

• DASD and tape allocation via HCD/HCM
• LPAR configuration in HMC
• Security administration using RACF or equivalent

• Dump analysis with IPCS
• SLIP and trace tools
• System logs and console messages

• DFSMShsm policies and recall management
• FDR/ABR for high-speed backups
• FlashCopy or virtual tape replication for near-instant restores

• RMF and SMF report analysis
• OMEGAMON or BMC MainView dashboards
• WLM classification and tuning

• VTAM and SNA definitions
• TCP/IP stack on z/OS
• OSA adapter and Coupling Facility communication

• SMP/E for PTF, APAR, and deliverable management
• z/OSMF workflows for streamlined maintenance
• Broadcom (e.g., Topaz), IBM, and BMC tooling for fix management and compliance reporting

NTT Data is looking for a Mainframe z/OS Systems Programmer to join their team remotely.

Responsibilities:

Operating System Knowledge:

• Deep mastery of z/OS architecture, including IPL procedures, JES2/JES3 configurations, Sysplex management, SMF data collection, and parmlib customization.

Programming Skills:

Proficient in writing and debugging system-level routines and automation: Assembler for exits and control blocks

• REXX for scripting and batch utilities

• JCL for job submission, parameterization, and workflow control

System Administration:

Managing hardware and logical resources across LPARs:

• DASD and tape allocation via HCD/HCM

• LPAR configuration in HMC

• Security administration using RACF or equivalent

Problem-Solving Skills:

Analytical troubleshooting of abends, storage hangs, and performance anomalies using:

• Dump analysis with IPCS

• SLIP and trace tools

• System logs and console messages

Backup and Recovery:

Ensuring data integrity and swift recovery with:

• DFSMShsm policies and recall management

• FDR/ABR for high-speed backups

• FlashCopy or virtual tape replication for near-instant restores

Performance Monitoring:

Optimizing system throughput and response times utilizing:

• RMF and SMF report analysis

• OMEGAMON or BMC MainView dashboards

• WLM classification and tuning

Networking Knowledge:

Configuring and supporting mainframe connectivity:

• VTAM and SNA definitions

• TCP/IP stack on z/OS

• OSA adapter and Coupling Facility communication

Documentation and Communication

Producing clear system diagrams, runbooks, and upgrade plans, while collaborating with application teams, storage, networking, and security groups.

Continuous Learning

Staying current on IBM Redbooks, z/OS release notes, firmware updates, and attending vendor training (IBM, Broadcom, BMC) or industry conferences.

Software Maintenance & Upgrade Tools

Executing OS and product upgrades with industry-standard utilities:

• SMP/E for PTF, APAR, and deliverable management

• z/OSMF workflows for streamlined maintenance

• Broadcom (e.g., Topaz), IBM, and BMC tooling for fix management and compliance reporting

Project Management & Hardware Refresh:

Planning and leading hardware refreshes, feature activations, and migrations with minimal downtime, including IPL scheduling, vendor coordination, and change-control governance.

Tools:

Operating System Knowledge : z/OS architecture, IPL, JES2/JES3, Sysplex setup. Tools: HCD/HCM, SYSLOG, CONS, SDS

Programming Skills: System exits, automation scripts, batch job control. Tools: HLASM, IPCS, REXX, TSO/E, JCL

System Administration : LPAR provisioning, DASD/tape allocation, security definitions Tools: HMC, IOCP, IODF, RACF

At NTT DATA, we know that with the right people on board, anything is possible. The quality, integrity, and commitment of our employees have been key factors in our company's growth and market presence. By hiring the best people and helping them grow both professionally and personally, we ensure a bright future for NTT DATA and for the people who work here.

For more than 25 years, NTT DATA Services have focused on impacting the core of your business operations with industry-leading outsourcing services and automation. With our industry-specific platforms, we deliver continuous value addition, and innovation that will improve your business outcomes. Outsourcing is not just a method of gaining a one-time cost advantage, but an effective strategy for gaining and maintaining competitive advantages when executed as part of an overall sourcing strategy.

About NTT DATA Services:

NTT DATA Services is a recognized leader in IT and business services, including cloud, data and applications, headquartered in Texas. As part of NTT DATA, a $30 billion trusted global innovator with a combined global reach of over 80 countries, we help clients transform through business and technology consulting, industry and digital solutions, applications development and management, managed edge-to-cloud infrastructure services, BPO, systems integration and global data centers. We are committed to our clients' long-term success. Visit nttdata.com or LinkedIn to learn more.

NTT DATA Services is an equal opportunity employer and considers all applicants without regarding to race, color, religion, citizenship, national origin, ancestry, age, sex, sexual orientation, gender identity, genetic information, physical or mental disability, veteran or marital status, or any other characteristic protected by law. We are committed to creating a diverse and inclusive environment for all employees. If you need assistance or an accommodation due to a disability, please inform your recruiter so that we may connect you with the appropriate team.

Where required by law, NTT DATA provides a reasonable range of compensation for specific roles. The starting hourly range for this remote role is ($x - x/hourly ) . This range reflects the minimum and maximum target compensation for the position across all US locations. Actual compensation will depend on several factors, including the candidate's actual work location, relevant experience, technical skills, and other qualifications.

This position is eligible for company benefits that will depend on the nature of the role offered. Company benefits may include medical, dental, and vision insurance, flexible spending or health savings account, life, and AD&D insurance, short-and long-term disability coverage, paid time off, employee assistance, participation in a 401k program with company match, and additional voluntary or legally required benefits.

Allied Consultants, Inc is a proudly Austin based firm with over 33 years of experience delivering top-tier technical and business professionals within Texas State Agencies. We are currently seeking an experience Mainframe z/OS Systems Programmer to play a key role within a high-impact technical services team.

At Allied Consultants, we value our consultants and are committed to providing an exceptional experience including:

• Highly competitive pay rates
• Local support staff for responsive, personal service
• Comprehensive benefits package, including:
• Medical insurance (with employer cost sharing)
• Life insurance
• A 401(K) plan with company match
• Flexible spending through a cafeteria plan

Candidates selected for interviews will be subject to a criminal background check and may be required to pass a drug screening, in compliance with federal and state regulations. All offers of employment are contingent upon successful completion of these checks.

Allied Consultants is a proud to be an Equal Opportunity Employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

Location of job: Remote

• Work involves highly advanced (senior-level) systems administration in support of agency mainframe applications and supporting infrastructure; and coordinate day-to-day system administration functions such as mainframe configuration, break/fix system support, and base user account creation/support.
• Routine system administration functions to include security administration support, performance monitoring, security monitoring, and system maintenance.
• Work includes supporting data entry and control work processes, overseeing and coordinating mainframe operations in the State's Consolidated Data Center Services (DCS), and working with the Network Administration, Customer Support and Applications Development & Support teams to provide support necessary for day-to-day mainframe operations.
• Experience with Informatica Power Exchange Administration for Change Data Capture processing using mainframe data sources and targets (i.e., IMS and VSAM) a plus.

The Worker will apply their expert knowledge and experience as a Mainframe z/OS Systems Programmer to support both the needs of the Legacy Systems as well as those for the Mainframe Transformation Team.

WORKER SKILLS AND QUALIFICATIONS

• Provide primary support as the subject matter expert for z/OS operating systems and system components; provide direct technical support as needed in the planning, implementation and testing of releases, upgrades, or changes to z/OS operating system, network, and components software.
• Provide end user support for assigned Independent Software Vendor (ISV) products such as BlueZone.
• Provide primary administration and end user support for SCLM.
• Provide input and recommendations for hardware capacity planning.
• Provide primary administrative support CICS and IMS.
• Diagnosed platform, software and related product issues and follow up with root cause analysis.
• Analyze performance issues and provide input and recommendations for capacity planning.
• Provide input and recommendations for system-wide performance tuning to meet required levels of service.
• Provide input and recommendations for system parameters and system libraries management.
• Provide support for technical consultation and inquiries from the other IT technical teams.
• Provide support as technical lead on internal team projects or participate on project teams that impact the z/OS platform.
• Provide support for Integration-testing new products with existing applications and user procedures.
• Assist with maintaining and providing technical support for Mainframe Production Control and Support Jobs and monthly Mainframe Job Scheduler.

Minimum (Required):

Years

Skills/Experience

5

Experience with z/OS Systems Programming

5

Experience with JES2, z/OS Unix System Services (OMVS), Storage Management Subsystem (SMS)

2

Experience with REXX

3

Experience with performance monitoring to include initial analysis of performance issues

Preferred (Optional):

Years

Skills/Experience

3

Experience with Informatica Power Exchange Administration

3

Working knowledge for each of the following:

• z/OS Operation
• z/OS Security- TSS (Top Secret Security)
• z/OS Networking- VTAM (Virtual Telecommunications Access Method), TCP/IP (Transmission Control Protocol/Internet Protocol)
• z/OS- centric automated job scheduling and management software (JOBTRAC)
• Terminal Emulator Software (BLUEZONE)
• VTAM Session Manager Software (VTAM/SWITCH)
• SMP/E (System Modification Program/Extended)
• RMF (Resource Measurement Facility)
• WLM (Workload Management)
• JCL (Job Control Language)
• GRS (Global Resource Serialization)
• VSAM (Virtual Storage Access Method)
• TSO (Time Sharing Option)

3

Experience with TLS configuration (certificates, SSL RSA Keys, SFTP, FTPS)

3

Experience with SCLM (or other similar configuration management tools), specifically configuration and administration of SCLM

3

Experience with CPM for JOBTRAC

Job Description

Experience in any 2 or more of below upgrades

Z/os Version upgrade to z/OS v2.4 / v2.5 / v3.1

Omegamon Suite product upgrade

IBM TWS scheduling tool upgrade

IBM System Automation upgrade

IBM Tivoli & Netview upgrade

Knowledge and experience in support for a complex Mainframe Environment

Knowledge and experience in support for Mainframe migrations and LPAR/MIPS management

Experience in Mainframe backup to and restore from tape

Knowledge and Experience in Mainframe datacenter migration and design

Experience in Install, configure and supporting Mainframe LPARS and MIPS

Experience configuring and supporting mainframe restores

Experience in Capacity and performance management

Experience with Remote Administration of MIPS/LPARS

Work with vendor partners to manage the agreed upon SLA's

Works with the vendor partners to improve the reporting and operations policies and procedures

Diverse Lynx LLC is an Equal Employment Opportunity employer. All qualified applicants will receive due consideration for employment without any discrimination. All applicants will be evaluated solely on the basis of their ability, competence and their proven capability to perform the functions outlined in the corresponding role. We promote and support a diverse workforce across all levels in the company.