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 traceroute, ping, etc.
Routing protocols (OSPF and static routes in our case)
Content delivery, load balancers
DNS basic knowledge: forward/reverse lookup, resolvers, DNS caching/time to live
FTP/FTPS/SFTP/SSH
VTAM
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