Vulnerability Analyst - Night Shift

Koitecc Solutions; San Antonio (TX); On-site; USD 70,000 - 126,000; Full time

Job summary

Leidos in San Antonio, TX is seeking a Vulnerability Analyst for the 3rd shift (9PM-5AM) to join the CESO effort. This on-site role supports a secure, automated platform with regulatory and IAVA responsibilities.

The ideal candidate holds a TS/SCI clearance, DoD 8140 IAT II certification, and experience with NIST/RMF risk management, ACAS, and SEIM tools. The position requires collaboration across infrastructure, storage, database, and app teams.

Qualifications

• Bachelor's degree in IT security or related field with 2+ years of relevant experience.
• Active TS/SCI clearance is required to start.
• DoDD 8140 compliant certification at least IAT Level II (e.g., Security+ CE).
• Experience with DISA security model, controls, and DoD cloud/DoD computing environments.
• Experience with IAVA processes and information assurance documentation (SCTM, RAR, SAR, POA&Ms).
• Familiarity with ACAS and SIEM tooling.

Responsibilities

• Meet regulatory and non-regulatory compliance demands across the CESO environment.
• Assist in managing the IAVA program for CESO systems.
• Manage information security policies and educate end-users on security best practices.
• Conduct security/risk assessments using NIST, RMF, and Common Criteria; mitigate risk with controls/tests.
• Develop and maintain RMF documentation from customer data.
• Ensure data privacy and perform vulnerability management, business continuity, and disaster recovery activities.
• Coordinate with infrastructure, storage, database, and application teams on vulnerability activities.
• Maintain CESO secure cloud migration documentation.
• Protect information and maintain security controls across CESO system, site, or program.

Skills

TS/SCI clearance

Security+ CE

IAT Level II

NIST RMF

ACAS

SEIM

Vulnerability mgmt

Disaster recovery

Education

Bachelor's degree

Tools

DISA controls

Job description

We are currently seeking a Vulnerability Analyst 3rd shift (9PM-5AM) to join the Compartmented Enterprise Services Office (CESO) effort. This program is establishing a modern secure web service (SWS) operation as part of a state-of-the-art, highly automated platform capable of supporting a rapidly expanding customer population.

This position is based in San Antonio, TX and is 100% on-site. Requires a TS/SCI US Government Security Clearance to start.

Primary Responsibilities

• Responsible for meeting both regulatory (Legal and Mandated Requirements) and non-regulatory (Real-World Threat Reduction) compliance demands across the CESO environment.
• Assist in the management and maintenance of the IAVA (Information Assurance Vulnerability Alerts) program for CESO systems.
• Manage and enforce information security policies, and train and educate end-users on proper security practices.
• Conduct security and risk assessments using established frameworks (e.g., NIST, RMF, Common Criteria), mitigating risk via security controls and testing and evaluation to certify and accredit commercial security products used within the CESO platform.
• Develop, update, organize, maintain, and track RMF documentation using information obtained from the customer.
• Ensure privacy of data throughout its lifecycle; perform vulnerability management (scanning, assessment, reporting, and mitigation verification), business continuity, and disaster recovery activities.
• Coordinate with infrastructure, storage, database, and application teams to align vulnerability management activities with CESO's operational and compliance requirements.
• Maintain documentation, operational procedures, and compliance reports supporting CESO's secure cloud migration.
• Responsible for a combination of duties to protect information and maintain security controls across the CESO system, site, or program in order to reduce risk.

Basic Qualifications

• Bachelor's degree and 2+ years of related IT security experience; additional experience, education, or training may be considered in lieu of degree.
• Active TS/SCI security clearance required
• DoDD 8140 compliant certification, at minimum IAT Level II (e.g., Security+ CE), at start.
• Experience with the Defense Information Systems Agency (DISA) security model, controls, and authorization processes for standard computing systems and cloud computing across the Department of Defense
• Experience conducting activities associated with Information Assurance Vulnerability Alerts (IAVA) for example, Cybersecurity and Infrastructure Security Agency (CISA).
• Experience with creating Information Assurance documentation such as Security Control Traceability Metrics (SCTM), Risk Assessment Report (RAR), Security Assessment Report (SAR) and maintaining POA&Ms (Plans of Action and Milestones).
• Experience with ACAS and SEIM tools.
• Experience with application and hardware security settings for vendor and/or DISA best business practices.
• Candidate may be asked to obtain a CI Polygraph in the future.

Preferred Qualifications

• Prior experience with DISA and DISA's support to mission partners.
• TS/SCI with CI Polygraph preferred.
• Experience with ACAS, SPLUNK, ACT (cybersecurity event), IAVA reporting, and eMASS.
• Familiarity with vulnerability management across enterprise applications and infrastructure (e.g., Oracle, SQL Server, Exchange, virtualization platforms, Windows, Red Hat).
• Understanding of disaster recovery and business continuity concepts as they apply to secure cloud migrations.

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

October 2, 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 $69,550.00 - $125,725.00

About 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 $16.7 billion for the fiscal year ended January 3, 2025. 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 at www.leidos.com/careers/pay-benefits.

Securing Your Data

Beware of fake employment opportunities using Leidos' name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system - never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at [e-mail].

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission.

Commitment to Non-Discrimination

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.