Mainframe Security Administrator jobs in United States
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IBM · 16 hours ago

Mainframe Security Administrator

IBM is a global leader in technology and consulting, and they are seeking a Mainframe Security Administrator to support the secure design and operation of mainframe environments for federal clients. The role involves hands-on z/OS security administration, implementing IBM z/Secure capabilities, and collaborating with various teams to ensure security compliance and modernization efforts.

Business DevelopmentBusiness Information SystemsCRMData ManagementFoundational AISoftware
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Growth Opportunities
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H1B Sponsor Likelynote

Responsibilities

Perform hands-on administration of RACF/ACF2/TSS to manage access control, identity governance, and secure configuration
Implement, configure, and maintain IBM z/Secure, including alerts, controls, compliance reporting, and vulnerability detection
Install, customize, and maintain z/OS software, program products, and related operational procedures
Support STIG/DoD cybersecurity baseline requirements and maintain documentation for audits and assessments
Collaborate with SOC and SIEM teams to ensure proper system logging and monitoring
Analyze and remediate security vulnerabilities or escalate appropriately
Produce technical documentation and communicate security impacts to both technical and non technical stakeholders

Qualification

IBM mainframe environmentsRACF security administrationACF2 security administrationTSS security administrationIBM z/SecureZ/OS software supportJCLREXXTCP/IPTechnical documentationCollaborationCommunication

Required

5+ years of experience working with IBM mainframe environments
Proficiency with RACF, ACF2, and/or TSS mainframe security administration
Hands-on experience installing, customizing, and supporting z/OS software and program products
Experience configuring, managing, and reporting with IBM z/Secure
Working knowledge of JCL, REXX, JES2, RACF, SMP/E, TCP/IP, and ISPF

Preferred

Technical Diploma
8+ years of IBM mainframe experience and familiarity with broader mainframe product sets beyond core z/OS
Experience with SIEM tools, vulnerability scanning technologies, network architecture, and/or Managed Security Services (MSSP)
Background with compliance frameworks (NIST, MITRE ATT&CK, OWASP), audit preparation, and evidence gathering
Reside in the Washington, D.C., Maryland, and Virginia (DMV) area

Company

IBM is an IT technology and consulting firm providing computer hardware, software, infrastructure, and hosting services.

H1B Sponsorship

IBM has a track record of offering H1B sponsorships. Please note that this does not guarantee sponsorship for this specific role. Below presents additional info for your reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (3032)
2024 (3301)
2023 (2160)
2022 (1809)
2021 (1157)
2020 (2669)

Funding

Current Stage
Public Company
Total Funding
unknown
2011-01-14IPO

Leadership Team

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Alain Bénichou
Chief Executive Officer, IBM Greater China Group
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Alex Yang
CTO and Chief Architect
Company data provided by crunchbase