Senior Mainframe Administrator (z/OS and Networking) - Remote

Overview

Remote
$80
Contract - W2
Contract - 6 Month(s)

Skills

JCL
z/OS
TCP/IP
TSO/ISPF
SNA
VTAM
NJE

Job Details

DivIHN (pronounced divine ) is a CMMI ML3-certified Technology and Talent solutions firm. Driven by a unique Purpose, Culture, and Value Delivery Model, we enable meaningful connections between talented professionals and forward-thinking organizations. Since our formation in 2002, organizations across commercial and public sectors have been trusting us to help build their teams with exceptional temporary and permanent talent.

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Vinod at
Job Title: Senior Mainframe Administrator (z/OS and Networking) - Remote
Location: Remote (Initial one month onsite in Springfield, IL, followed by remote work with occasional onsite visits as needed)
Duration: 6 months
All onsite travel expenses will be reimbursed - the first month by DivIHN, and thereafter by the client.
Job Summary:
  • The Client is seeking an experienced Senior z/OS Systems Administrator with extensive expertise in mainframe system administration. This individual will serve as a senior resource to assist Client with general system administration for a IBM z16 mainframe and DR environment with experience in maintaining and assisting with mainframe network administration, security certificates, SFTP, APIs, TCP\IP
  • The role is critical to ensuring the resilience, availability, security, and compliance of the Client's enterprise mainframe infrastructure. The successful candidate will work with IBM, HPE, and internal IT teams to design, implement, monitor, primary and secondary mainframe systems that support the Client's mission-critical applications.
Responsibilities:
  • Provide advanced system administration and technical leadership for IBM z/OS mainframe systems.
  • Manage and maintain network configurations, connectivity, and communication protocols (SNA, TCP/IP, VTAM, NJE, etc.) in the mainframe environment.
  • Troubleshoot and resolve complex system, network, and application-level issues, driving root cause analysis and long-term corrective actions.
  • Assist with planning and application of system maintenance, software upgrades, and PTFs, coordinating with system programmers and vendor support.
  • Administer and enforce mainframe security policies (RACF, ACF2, or Top Secret), including user access management and compliance controls.
  • Participate in and provide guidance for problem, change, and incident management processes, ensuring timely resolution and documentation.
  • Collaborate with infrastructure, application, and network teams to ensure seamless integration and high availability across systems.
  • Mentor junior administrators and contribute to process improvement and automation initiatives.
Required Skills & Experience:
  • 8-10 years of progressive experience as a z/OS Systems administrator with a focus on mainframe networking .
  • Strong understanding of mainframe networking, including SNA, TCP/IP, VTAM, NJE, and related tools (NetView, Wireshark, etc.).
  • Proficiency with JCL, TSO/ISPF, and monitoring tools such as SDSF, RMF, OMEGAMON, SysView, or equivalent.
  • Experience with JES2/JES3 job management, system logs, and IPL processes.
  • Solid knowledge of network architecture and administration.
  • Familiarity with automation tools, scheduling systems
  • Experience working with vendors (IBM, HPE, Kyndryl) to manage hardware lifecycle and support escalations.
  • Strong problem-solving, communication, and documentation skills.
Preferred Qualifications
  • Experience with z/OS 3.1 and IBM z16 platforms.
  • Prior involvement with enterprise disaster recovery and failover of mainframe systems.
  • Experience in training, mentoring, and knowledge transfer within enterprise IT teams.
Education
  • Bachelor's Degree in Computer Science, Information Systems, or related field, or equivalent professional experience.
  • IBM or vendor certifications in mainframe storage technologies are a plus.

About us:
DivIHN, the 'IT Asset Performance Services' organization, provides Professional Consulting, Custom Projects, and Professional Resource Augmentation services to clients in the Mid-West and beyond. The strategic characteristics of the organization are Standardization, Specialization, and Collaboration.

DivIHN is an equal opportunity employer. DivIHN does not and shall not discriminate against any employee or qualified applicant on the basis of race, color, religion (creed), gender, gender expression, age, national origin (ancestry), disability, marital status, sexual orientation, or military status.

Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.