Mainframe Systems Engineer; z​/OS & Networking

Position: Mainframe Systems Engineer (z/OS & Networking)
Job-ID Reference
26-00697

Remote
100% Remote Mainframe Systems Engineer (z/OS & Networking)
Location – 100% Remote – ability for hybrid in specific locations

Terms – Direct Hire / Permanent

Job Description:

The Mainframe Systems Engineer installs and maintains mainframe operating systems ensuring the stability, performance and security of our mainframe environment while driving innovation and continuous improvement.

Primary Responsibilities Evaluates system specifications, input/output processes, and working parameters for hardware/software compatibility

Troubleshoots and resolves complex technical issues related to mainframe systems and applications

Administers, configures, and maintains mainframe systems, including hardware, operating systems, and software components

Maintains operational effectiveness and efficiency by monitoring, evaluating, and adjusting mainframe operating systems

Maintains quality service by establishing and enforcing organization standards

Maintains installation records by documenting system configurations, procedures, and best practices

Resolves problems by determining cause, providing technical assistance to applications and other support staff

Develops and implements backup and disaster recovery strategies to ensure business continuity

Covers on call 24x7 on a rotating basis for problem resolution and SEV1 incidents

Ensures compliance with risk management programs, rules and regulations, and cybersecurity practices; identifies opportunities for and supports process improvements; applies disciplined change management practices

Requirements

Bachelor's degree in Computer Science, Business, or a related field and six (6) years of mainframe infrastructure technical software and hardware analysis, programming, and installation experience

Or High School Diploma or GED with ten (10) years of experience of mainframe infrastructure technical software and hardware analysis, programming, and installation

Experience in installation and support of Mainframe system products including ZOS, CICS, MQ, DB2, Storage, Automation, ZLINUX or Networking Experience in problem determination, installation and support of mainframe products, disaster recovery experience and knowledge, and performance and tuning experience

Experience in opening, managing, solving, and closing problems with vendor support centers

Skills and Competencies Ability to interpret and ensure compliance with applicable rules, regulations, and industry guidance

Ability to work in a team environment when applicable

Ability to work under limited guidance

Ability to work under pressure and meet deadlines

Excellent problem solving and trouble shooting skills

Strong communication and collaboration abilities

Strong understanding of mainframe hardware

Basic Networking Knowledge
TCPIP

IP V4 addressing, subnetting, utilities like trace route, ping, etc.

Routing protocols (OSPF and static routes in our case)
Content delivery, load balancersDNS basic knowledge: forward/reverse lookup, resolvers, DNS caching/time to liveFTP/FTPS/SFTP/SSHVTAM

Basic configuration:
Major nodes, application definitions, Enterprise Extender Basic Unix knowledge

File structure

Basic commands: ls, cd, chmod, etc.

Basic z/OS knowledge
TSO, ISPF,JCL, job submission, etc.

Security
TLS sessions

Certificate chains, keyrings

Nice to have:
z/OS policy agent (PAGENT)
ZOSMF network configuration assistant

Managed file transfer applications such as Connect Direct Mainframe print delivery (Infoprint)
Hypersockets and Shared Memory communication

Service Now experience