InterSources
Job Title: Mainframe ZOS Admin
Location: Poughkeepsie, NY
Duration : long term contract
Job Summary: The
z/OS System Administrator
is responsible for the
installation ,
configuration ,
maintenance , and
optimization
of the
IBM z/OS operating system
and associated
subsystems . This role ensures the
high availability ,
security , and
performance
of the
mainframe environment , supporting
business-critical applications and services . The administrator works closely with
developers ,
operators , and other
IT staff
to support and enhance the mainframe ecosystem.
Key Responsibilities: Oversee the
installation ,
upgrade ,
configuration , and
maintenance
of the
z/OS operating system
and supporting software. Monitor
and
tune
system performance to ensure
24x7 operational stability . Maintain expertise in
z/OS utilities and tools
including
HCD ,
SMP/E ,
RACF ,
TCP/IP ,
SMTP ,
FTP ,
DFDSS ,
DSF ,
SMS ,
Infoprint ,
TLS , and
VTAM . Support
TSO ,
JCL , and
ISPF
environments; provide assistance to developers and operators on
access
or
job execution issues . Manage
user access and security
using
RACF
and coordinate
elevated access provisioning
for new staff and contractors. Administer
hardware configurations
through
HMC ,
DS8910 , and
Luminex VTL
subsystems. Support
OEM software
such as
OPS/MVS
(alert management),
Zeke
job scheduler, and
Zara
tape management system. Collaborate with
programmers
on
debugging job abends
and other mainframe-related issues. Maintain
server pack
knowledge and perform
software installations and upgrades . Implement and support
consistent environments
across
development ,
staging ,
testing , and
production . Identify and resolve
system/process deficiencies
and suggest
optimizations . Support
change management
by ensuring the
latest application releases
are implemented with
minimal disruption . Create, update, and maintain
system and user documentation
and
training materials . Contribute to annual updates of the
Disaster Recovery Support Manual . Participate in a
24x7 on-call rotation
with other mainframe team members to ensure
continuous support
and
system availability . Qualifications:
Bachelor's degree in
Computer Science ,
Information Systems , or related field, or equivalent experience. 5+ years
of experience in
z/OS system administration . Strong knowledge of
mainframe architecture ,
subsystems , and
utilities . Proficient in
TSO/ISPF ,
JCL , and
system monitoring tools . Experience with
RACF security
and
user management . Familiarity with
job scheduling and automation tools
(e.g.,
Zeke ). Experience supporting
hardware configurations
via
HMC
and
mainframe storage/tape systems . Ability to
diagnose complex system issues
and implement
corrective actions
quickly. Excellent
communication
and
documentation skills . Strong
problem-solving skills
with the ability to work
independently
and in a
team . Availability to provide
24x7 support
on a
rotating basis .
Job Summary: The
z/OS System Administrator
is responsible for the
installation ,
configuration ,
maintenance , and
optimization
of the
IBM z/OS operating system
and associated
subsystems . This role ensures the
high availability ,
security , and
performance
of the
mainframe environment , supporting
business-critical applications and services . The administrator works closely with
developers ,
operators , and other
IT staff
to support and enhance the mainframe ecosystem.
Key Responsibilities: Oversee the
installation ,
upgrade ,
configuration , and
maintenance
of the
z/OS operating system
and supporting software. Monitor
and
tune
system performance to ensure
24x7 operational stability . Maintain expertise in
z/OS utilities and tools
including
HCD ,
SMP/E ,
RACF ,
TCP/IP ,
SMTP ,
FTP ,
DFDSS ,
DSF ,
SMS ,
Infoprint ,
TLS , and
VTAM . Support
TSO ,
JCL , and
ISPF
environments; provide assistance to developers and operators on
access
or
job execution issues . Manage
user access and security
using
RACF
and coordinate
elevated access provisioning
for new staff and contractors. Administer
hardware configurations
through
HMC ,
DS8910 , and
Luminex VTL
subsystems. Support
OEM software
such as
OPS/MVS
(alert management),
Zeke
job scheduler, and
Zara
tape management system. Collaborate with
programmers
on
debugging job abends
and other mainframe-related issues. Maintain
server pack
knowledge and perform
software installations and upgrades . Implement and support
consistent environments
across
development ,
staging ,
testing , and
production . Identify and resolve
system/process deficiencies
and suggest
optimizations . Support
change management
by ensuring the
latest application releases
are implemented with
minimal disruption . Create, update, and maintain
system and user documentation
and
training materials . Contribute to annual updates of the
Disaster Recovery Support Manual . Participate in a
24x7 on-call rotation
with other mainframe team members to ensure
continuous support
and
system availability . Qualifications:
Bachelor's degree in
Computer Science ,
Information Systems , or related field, or equivalent experience. 5+ years
of experience in
z/OS system administration . Strong knowledge of
mainframe architecture ,
subsystems , and
utilities . Proficient in
TSO/ISPF ,
JCL , and
system monitoring tools . Experience with
RACF security
and
user management . Familiarity with
job scheduling and automation tools
(e.g.,
Zeke ). Experience supporting
hardware configurations
via
HMC
and
mainframe storage/tape systems . Ability to
diagnose complex system issues
and implement
corrective actions
quickly. Excellent
communication
and
documentation skills . Strong
problem-solving skills
with the ability to work
independently
and in a
team . Availability to provide
24x7 support
on a
rotating basis .