Mainframe Security Analyst

Leidos; United States; Remote; USD 59,000 - 107,000; Full time

Job summary

Leidos is seeking a Mainframe Security Analyst to support a government health-care claims processing environment with RACF and identity management expertise.

You will maintain RACF, manage user accounts, verify access permissions, and coordinate security updates across mainframe environments while providing regular security reporting and on-call support as needed.

Qualifications

• BS degree with 4+ years of experience.
• Experience analyzing government mainframe systems.
• Experience managing mainframe user accounts and security for a large government agency.
• Expertise with IBM RACF and Vanguard Security tools.
• Experience with audit and security review process for RACF.
• Able to utilize Incident ticket system to open, resolve, close tickets and Service Requests.
• Demonstrate excellent communication skills including the ability to effectively communicate with internal and external customers.
• All CMS program candidates must have lived in the United States for at least three out of the last five years.

Responsibilities

• Maintaining mainframe RACF environment and monitoring security access patterns.
• Creating and deleting user accounts on various mainframe systems.
• Confirming that the proper permissions are in place to restrict access to sensitive data.
• Work with the Infrastructure Services provider to ensure security updates are rolled out to various mainframe environments.
• Serve as primary point of contact for researching and making corrections to mainframe security and access related questions.
• Provide regular reporting on production and UAT security and identity management processing issues.
• Perform user and security audits of the mainframe RACF environment on a regular basis.
• Potential ability to work on-call shifts to support batch processing and monitoring.

Skills

RACF

Identity management

Mainframe security

Security auditing

Incident tickets

Communication skills

Education

BS degree

Tools

IBM RACF

Vanguard Security tools

Job description

Mainframe systems security Analyst working to support a mainframe environment for government agency, with expertise in RACF and identity management activities for a large multi-agency health care claims processing environment.

Daily operational tasks include:

• Maintaining mainframe RACF environment and monitoring security access patterns
• Creating and deleting user accounts on various mainframe systems
• Confirming that the proper permissions are in place to restrict access to sensitive data
• Work with the Infrastructure Services provider to insure that security updates are rolled out to various mainframe environments
• Serve as primary point of contact for researching making to corrections to mainframe security and access related questions
• Provide regular reporting on production and UAT security and identity management related processing issues
• Perform user and security audits of the mainframe RACF environment on a regular basis
• Potential ability to work on-call shifts to support batch processing and monitoring

Education and Experience:

• BS degree and 4 years of experience. Experience may be substituted in lieu of degree.
• Experience analyzing government mainframe systems
• Experience managing mainframe user accounts and security environment for a large government agency supporting Medical claims processing and a common workload file (CWF)
• Expertise with IBM RACF and Vanguard Security tools
• Expertise with mainframe and host based security
• Experience with audit and the security review process for RACF
• Able to utilize Incident ticket system to open, resolve, close tickets and Service Requests
• Demonstrate excellent communication skills including the ability to effectively communicate with internal and external customers.
• Ability to use strong industry knowledge to relate to customer needs and dissolve customer concerns and a high level of focus and attention to detail.
• Strong work ethic with good time management with the ability to work with diverse teams and lead meetings
• Strong organizational, interpersonal and analytical skills
• All candidates supporting the CMS programs must have lived in the United States at least three (3) out of the last five (5) years prior in order to be considered.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares.

Original Posting: September 29, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $59,150.00 - $106,925.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com.

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here.

Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to [e-mail].

Commitment and Diversity

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.