Senior Mainframe z/OS Engineer

FNTS

. Maintain customer Mainframe environments and solve technical problems efficiently .

Posted 11/3/2026full-timeRemote • United StatesSenior💰 $89,828 - $148,215 per yearWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive expertise in Mainframe Systems Engineering, including z/OS Concepts, Storage Management, and Major Subsystems. Proficient in system migrations, hardware configurations, and technical problem-solving with a strong emphasis on communication and documentation.

Highest-signal resume keywords

Mainframe Systems EngineeringZ/OS ConceptsStorage ManagementCICS, IMS, DB2, MQ SeriesOS Upgrades and Software Installation

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Z/OS ConceptsStorage ManagementCICSIMSDB2MQ SeriesOS UpgradesPTF DeploymentAutomation and Monitoring ToolsLPAR Configuration

Soft Skills

Excellent Communication SkillsSelf-MotivatedIndependent Work

Tools & Technologies

Hardware Management ConsolePhysical and Virtual Tape LibraryTCP/IP ConfigurationJBODRAIDSAN

Industry Keywords

MainframeTechnical Problem SolvingSystem DocumentationCustomer Environment MigrationBreak/Fix Support

Tech Stack

Tools & technologies

AssemblyReactTCP/IP

About the role

Key responsibilities & impact

Maintain customer Mainframe environments and solve technical problems efficiently
Plan and migrate customer systems via tape save/restore or software replication
Expand existing customer environments
Ensure proper handling of system backups
React in a break/fix capacity to escalate technical issues compromising system operability and functionality
Perform reporting functions as required or requested by customers
Support cases, incidents, and problems not solvable by Operations
Install, maintain, and configure ISV products
Assist with hardware configuration and upgrades
Collaborate on customer environment migrations with minimal impact
Write and maintain system documentation
Work with customers on migration to FNTS or remote management setup
Implement roadmap technologies, including new hardware and OS capabilities such as Sysplexes
Install new OS and major subsystem releases while coordinating timing, testing, and implementation with customers
Maintain golden/sandbox systems for templates
Participate in technical infrastructure projects as the Mainframe SME
Provide occasional after-hours and weekend support

Requirements

What you’ll need

Mainframe Systems Engineer with 10+ years experience
z/OS Concepts (JES2, SDSF, TSO, RACF, HCD/IODF, SMP/E)
Communication Concepts (VTAM, TCP/IP)
Storage Management (SMS, HSM, DFDSS, VSAM, IDCAMS, ICF Catalogs)
z/OS Subsystems (JES2, WLM, OMVS/USS, SMF/RMF, RACF, ASM, GRS)
Major Subsystems (CICS, IMS, DB2, MQ Series)
Knowledge of z systems hardware
Experience configuring LPARs using the Hardware Management Console
Experience with storage management in JBOD, RAID, and SAN environments and the performance differences with each
Experience defining and troubleshooting Printer configurations
Experience configuring TCP/IP and associated servers in an IPV4 environment (IPv6 desired)
Familiarity with Physical and Virtual tape library configuration and implementation
OS Upgrades, PTF Deployment and software installation
Experience configuring and deploying automation and monitoring tools
Self-motivated and able to work independently
Excellent communication skills (written, verbal and presentations)
Candidates must possess unrestricted work authorization and not require future sponsorship

Benefits

Comp & perks

Medical, Dental, Vision Insurance
401k, With Matching Contributions
Time Off Programs
Health Savings Account (HSA)/Dependent Care
Employee Banking
Growth Opportunities
Tuition Assistance
Short-Term/Long-Term Disability Insurance
Work-life balance
Occasional travel for in-person meetings