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 8+ years of prior relevant experience with a focus on cybersecurity OR Masters with 4-6 years of prior relevant experience. Additional experience and/or cyber certifications may be considered in lieu of a degree.
At least two 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.
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:April 27, 2026For 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.
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 Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Leidos and has not been reviewed or approved by Leidos.
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Healthcare Strength — Healthcare coverage is described as comprehensive, with multiple plan options, low office-visit copays in some plans, and access to mental health and wellness support tools. The availability of HSA/FSA options and employer contributions is positioned as a meaningful part of the total package.
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Retirement Support — Retirement benefits are framed as a strong component of total rewards, highlighted by a 401(k) match and immediate vesting in the standard package. The Employee Stock Purchase Plan is also presented as an additional long-term wealth-building feature.
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Wellbeing & Lifestyle Benefits — Wellbeing and lifestyle supports extend beyond core insurance, including wellness programs, fitness-related stipends, and assistance resources. Work flexibility and related perks are also included as part of the broader rewards experience.
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We Are Leidos For 50 years we have been tackling some of the biggest problems that face our nation and our world. OUR MISSION Through our culture of innovation and history of performance, we develop deep customer trust built on integrity and create enduring solutions that improve our world. Leidos is a science and technology solutions leader working to address some of the world’s toughest challenges in the defense, intelligence, homeland security, civil, and healthcare markets. The company’s 43,000 employees support vital missions for government and commercial customers. Headquartered in Reston, Va., Leidos reported annual revenues of approximately $11.09 billion for the fiscal year ended January 3, 2020. Leidos was cited for the meaningful work employees perform that is challenging, impactful, and aligned with our customers’ missions as reasons professionals want to work and stay at our company. Leidos has also been named to lists including Forbes’ Best Employers for Diversity, Forbes’ America’s Best Employers for Women, Military Times Best for Vets Employers, and Ethisphere Institute’s World's Most Ethical Companies®. Employees enjoy career enrichment opportunities available through mobility and development and experience rewarding relationships with supportive supervisors and talented colleagues and customers. Employees appreciate our flexible work environment, allowing for and encouraging a true work-life balance. Our professionals are also excited about our Employee Resource Groups, like the newly launched Collaborative Outreach with Remote and Embedded Employees (CORE), which strives to create an environment where every employee, regardless of location, feels fully engaged as a valued employee of Leidos. Your most important work is ahead.






