Job Description

Leidos has an immediate need for an experienced Vulnerability Assessor for a new customer on a highly-visible and strategic Cybersecurity Task Order. The VAT Analyst will need to be a self-starter with excellent analytical and problem-solving skills, flexibility, good judgment, and the ability to work within a team to stand up and mature the cybersecurity capabilities of our customer.

Primary Responsibilities:

• Develop and execute vulnerability/compliance scans through Nessus SC interface, determine whether a completed scan has provided valid results, and generate a variety of reports to meet customer needs and expectations
• Coordinating and collaborating with operations teams to identify solutions for vulnerability mitigation.
• 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 SOC and enterprise networking teams to proactively block exploitation within the customer environment.
• Perform enterprise-wide network scans, agent scans, including credentialed scans of Linux, Windows, and Network devices.
• Configure and maintain scan templates based on asset types, repository, credentials, etc. in support of continuous scanning requirements for various FISMA systems
• Perform security compliance and vulnerability assessments, specifically developing and applying STIG or CIS baselines for various operating systems, including Windows or RHEL and CentOS
• The candidate must possess strong communications skills and the demonstrated ability to convey technical concepts to non-technical audiences
• Maintain up-to-date knowledge of the customer and its services
• Maintain, optimize, and troubleshoot scan policies and repositories.
• Manage scan policies for multiple FISMA systems
• Perform vulnerability analysis from scan results and prioritize vulnerabilities and findings for remediation
• Coordinate with other program staff, FISMA system ISSOs, and system owners to explain findings, provide recommendations on mitigations, and advocate for mitigation of vulnerabilities
• Conduct scheduled and ad-hoc or emergency vulnerability/compliance scanning to support targeted incident investigation, escalation, and emergency response to security events in accordance with documented procedures
• Author and maintain SOPs and runbooks

Basic Qualifications

BS degree in Science, Technology, Engineering, Math or related field and 12-15 years of prior relevant experience with a focus on cybersecurity. Additional experience and/or cyber certifications may be considered in lieu of a degree.

• At least 8 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 products
• Possess at least one of the following certifications:

ISC2: CISSP

EC Council: CEH

CompTIA: Security+

• Department of Homeland Security (DHS) Entry on Duty (EOD) is required to support this program

Preferred Qualifications

• Previous experience working in a DHS or other federal government agency SOC/NOC/NOSC environment
• Familiarity or experience in Intelligence Driven Defense, Cyber Kill Chain methodology, and/or MITRE ATT&CK framework.

Original Posting:
May 28, 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 $131,300.00 - $237,350.00

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.