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Job #: R-00112435-OTHLOC-PL-2D0181
Location: Stennis Space Center, MS
Category: Cyber Operations
Schedule (FT/PT): Full Time
Travel Required: No
Shift: Day
Remote Type: Hybrid Remote
Clearance: Top Secret/SCI
Referral Eligibility: Eligible
Referral Bonus Amount: $5,000
Group: Intelligence

This job posting is no longer active.

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Department of Homeland Security (DHS) Network Operations Security Center (NOSC) is a US Government program responsible to monitor, detect, analyze, mitigate, and respond to cyber threats and adversarial activity on the DHS Enterprise.   The DHS NOSC has primary responsibility for monitoring and responding to security events and incidents detected at the Trusted Internet Connection (TIC) and Policy Enforcement Point (PEP) and is responsible for directing and coordinating detection and response activities performed by each Component Security Operations Center (SOC). Direction and coordination are achieved through a shared DHS incident tracking system and other means of coordination and communication. 


Information Security Vulnerability Management

  • Lead the Vulnerability Management function of the overall Vulnerability Assessment Team, working with the Vulnerability Assessment function and Penetration Testing function under a unified Vulnerability Assessment Lead

  • Create and maintain vulnerability scan policies, including host-based, network, database, and web-based vulnerabilities

  • Create and maintain compliance scan policies

  • Maintain a master asset list

  • Troubleshoot scan issues and coordinate with appropriate team members

  • Continuously research emerging threats to the environment in order to disseminate the information to all stakeholders, immediately assess the known environment for presence of the vulnerability, and work with the NOSC, Enterprise VAT, and enterprise networking teams to proactively block exploitation within the DHS environment

  • Coordinate with NOSC cybersecurity leadership and FISMA system ISSOs and system owners to explain findings, provide recommendations on mitigations, and advocate for mitigation of vulnerabilities

  • Track and trend vulnerabilities for HQ NOSC to assess and depict risk posture through relevant metrics collection

  • Correlate CISA KVEs, CTI reports, and DHS cybersecurity policies and incorporate into NOSC scanning policies as applicable

  • Conduct, operate, and maintain vulnerability/compliance assessments and the resulting data and reports

  • Author and maintain SOPs and runbooks

  • Other duties as assigned

Basic Qualifications

  • Bachelors’ degree from an accredited college in IT, cybersecurity, computer science, or related field, or equivalent experience/combined education, with 8-12 years of professional experience; or a Masters’ degree with 6-10 years of professional experience with.

  • At least six years of direct experience in vulnerability assessment/management

  • Familiar with the management, operational, and technical aspects of IT Security in a complex environment. 

  • Experience working with industry-standard cybersecurity methodologies and processes

  • Advanced knowledge of TCP/IP protocols

  • Experience configuring and implementing various technical security solutions,

  • Substantial experience managing vulnerability/compliance scans using Tenable Nessus and/or Security Center

  • Expert in Nessus Manager

  • Expert in

  • Expert in Kali Linux and associated tools

  • Expert in Core Impact

  • Expert in Burp Suite Pro

The ideal candidate is a self-motivated individual with the ability to skillfully balance mission and personnel goals and objectives

The candidate will need to pass the customer specific background check and investigation prior to a start date with Leidos.

The position can be in DC, Ashburn, VA, Chandler, AZ or Stennis, MS

Should have at least one of the following certifications:


Offensive Security: OSCP, OSCE, OSWP, OSEE


EC Council: CEH

Pay Range:

Pay Range $101,400.00 - $183,300.00

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.

Original Posting Date:


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.

About Leidos

Leidos is a Fortune 500® innovation company rapidly addressing the world’s most vexing challenges in national security and health. The company's global workforce of 47,000 collaborates to create smarter technology solutions for customers in heavily regulated industries. Headquartered in Reston, Virginia, Leidos reported annual revenues of approximately $15.4 billion for the fiscal year ended December 29, 2023.  For more information, visit

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

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 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 [email protected].

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 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.

This job posting is no longer active.

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