Nessus jobs in Fort Belvoir, VA

Washington, District of Columbia

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Today

Join a high-impact Governance, Risk, and Compliance team supporting security authorization and compliance efforts for federal information systems. This role is ideal for an experienced security professional who enjoys managing RMF/ATO activities, strengthening documentation, and collaborating across technical and business teams to support a strong security posture. Responsibilities Support the full security authorization lifecycle for information systems under NIST RMF guidance Prepare, update

Full-time

USD 47.00 - 82.00 per hour

Information System Security Engineer

Washington, District of Columbia

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Today

MANTECH seeks a motivated, career and customer-oriented Information System Security Engineer (ISSE) to join our team in Washington, D.C., Chantilly, VA, Quantico, VA, or Huntsville, AL. Responsibilities include, but are not limited to: Identify information protection needs for an IS and Network Environment. Define IS and Network Environment security requirements in accordance with applicable cybersecurity requirementsDesign security architectures for use within the IS and Network Environment. De

Full-time

Information System Security Engineer

Quantico, Virginia

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Today

Full-time

Senior Cloud Information System Security Engineer

Washington, District of Columbia

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Today

MANTECH seeks a motivated, career and customer-oriented Senior Cloud Information System Security Engineer (ISSE) to join our team in Washington, D.C., Chantilly, VA or Quantico, VA. Responsibilities include, but are not limited to: Identify information protection needs for an IS and Network Environment. Define IS and Network Environment security requirements in accordance with applicable cybersecurity requirementsDesign security architectures for use within the IS and Network Environment. Desig

Full-time

Senior Cloud Information System Security Engineer

Quantico, Virginia

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Today

Full-time

Information Systems Security Manager

Fort Belvoir, Virginia

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Today

Responsibilities: The Information Systems Security Manager (ISSM) provides information assurance and cybersecurity support to the Army's Capabilities Program Executive (CPE) Mission Autonomy (MA) organization by providing expertise and insight with cybersecurity, information technology, and information assurance (IT/IA) in support of project staff, engineers, and warfighters. This position will be located at Ft. Belvoir, VA. Your essential job functions will include but may not be limited to:

Full-time

USD 140,000.00 - 180,000.00 per year

Network Computer System Administrator

McLean, Virginia

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Today

Overview The Network Computer System Admin supports the United States (U.S.) Army C5ISR Center to develop advances within cyber defense research; advanced detection methods; sensor structure, data optimization, and sensor architectures; intrusion detection innovations, evaluation methods, attack behaviors, insider threat and adversarial threat predictions. Responsibilities Produce computing solutions derived from DoW security policies and regulations to ensure that the product design complies

Full-time

USD 137,710.00 - 164,037.00 per year

Sr. Cybersecurity Analyst II (6688)

Washington, District of Columbia

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Today

As Sr. Cybersecurity Analyst II, you'll Provides a wide array of Information Technology (IT) oriented services to its 4,000 customers. These services include: incident and request support; conducting program analysis and studies; developing, operating, and maintaining IT systems and applications; maintaining vigilance with regard to information assurance including compliance with the Federal Information Security Modernization Act (FISMA). We know that you can't have great technology services wi

Full-time

USD 110,000.00 - 120,000.00 per year

Information Systems Security Officer (ISSO)

Herndon, Virginia

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Today

Altus Consulting Seeks an Information Systems Security Officer to Champion Cybersecurity If you find exhilaration in safeguarding digital assets and possess a deep understanding of cybersecurity frameworks and best practices, Altus Consulting invites you to explore this impactful opportunity. As our Information Systems Security Officer (ISSO), you'll become a pillar of our cybersecurity defenses, protecting client systems and their valuable data. The Mission At Altus Consulting, we understand t

Full-time

Senior Security Control Assessor

Quantico, Virginia

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Today

MANTECH seeks a motivated, career and customer-oriented Senior Security Control Assessor (SCA) to join our team in Washington, D.C., Chantilly, VA, Quantico, VA, or Huntsville, AL. Responsibilities include, but are not limited to: Provides overall configuration management infrastructure and environment to the product development team. Developing or modifying CM plans, policies, and procedures tailored to the complexity and scope of the developmental or operational systemEnsure that FBI ISs are o

Full-time

Principal Cyber Security Engineer

Chantilly, Virginia

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Today

MANTECH seeks a motivated, career and customer-oriented Principal Cyber Security Engineer to join our team in Chantilly, VA. Responsibilities include but are not limited to: Engineer, design, implement, integrate, and sustain Comply-to-Connect (C2C) deployment support to migrate, deploy, improve, and maintain C2C services.Manage and maintain C2C appliances, applications, servers, and supporting infrastructure on unclassified and classified environments.Coordinate with the network service provid

Full-time

Systems Administrator

Reston, Virginia

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Today

Leidos has an opening for a Systems Administrator in Reston Virginia. Responsibilities include installation, configuration, administration, support and maintenance of systems, including associated hardware. Responsibilities may include management of systems infrastructures, implementing best practices to Identify and recommend system functional specifications, configuration of physical and virtual systems, backup and recovery of IT infrastructure. Support duties may include updating and supporti

Full-time

USD 73,450.00 - 132,775.00 per year

Senior Cloud Information System Security Engineer

Chantilly, Virginia

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Today

Full-time

Cyber RMF/ATO Engineer

Remote or Tysons, Virginia

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Today

Overview The Cyber RMF/ATO Engineer is responsible for maintaining cybersecurity, RMF compliance, and ATO readiness for VA products and environments for the Department of Veterans Affairs (VA), Office of Information and Technology (OIT), Product Delivery Services (PDS), Benefits and Memorials (BAM), Memorial and Benefit Services (MBS) deliver secure, reliable, and effective Information Technology (IT) solutions that support the Department's mission. Responsibilities Ensures continuous monitor

Full-time

Systems Engineer

Fort Belvoir, Virginia

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Today

At Accenture Federal Services, nothing matters more than helping the US federal government make the nation stronger and safer and life better for people. Our 13,000+ people are united in a shared purpose to pursue the limitless potential of technology and ingenuity for clients across defense, national security, public safety, civilian, and military health organizations. Join Accenture Federal Services, a technology company within global Accenture. Recognized as a Glassdoor Top 100 Best Place to

Full-time

USD 137,900.00 - 175,100.00 per year

Systems Security Engineer

Dahlgren, Virginia

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Today

Overview SYSTEMS SECURITY ENGINEER (RDTE) Bowhead is seeking a Systems Security Engineer in Dahlgren, VA. In this role, you will be responsible for developing and maintaining Risk Management Framework (RMF) Assessment and Authorization (A&A) packages for our clients. You will work closely with other developers, as well as with stakeholders from different departments, to ensure that our RMF A&A packages are accurate, complete, and meet all necessary requirements. Responsibilities Essential fu

Full-time

USD 100,000.00 - 125,000.00 per year

Cybersecurity Analyst I

Manassas, Virginia

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Today

Overview Now Hiring at AMERICAN SYSTEMS Epsilon, Inc. has joined AMERICAN SYSTEMS! As one organization, we offer expanded resources, streamlined operations, and increased opportunities for growth and development. Join us to be part of a dynamic, collaborative environment dedicated to innovation and customer success. Responsibilities An Average Day: As the Cybersecurity Analyst I you will enhance the organization's cybersecurity posture by performing comprehensive risk assessment and improvin

Full-time

USD 85,000.00 per year

Systems Administrator (SA) - TS/SCI with CI Polygraph

McLean, Virginia

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Today

TITLE: Systems Administrator (SA) LOCATION: McLean, VA CLEARANCE REQUIRED: Active DoD TS/SCI with CI Polygraph EMPLOYMENT TYPE: Full-time, On-site POSITION SUMMARY Modern Government Solutions (MGS) is seeking a Systems Administrator (SA) to support the implementation, hardening, and maintenance of secure systems for mission-critical government programs. The SA will work alongside the program's ISSE and security team to implement technical controls, maintain system security posture, and supp

Full-time

Cybersecurity Engineer - Cloud

Chantilly, Virginia

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Today

Job ID: 2614831 Location: Chantilly, VA, US Date Posted: 2026-07-23 Category: Information Technology Subcategory: Cloud Comp Engr Schedule: Full-Time Shift: Day Job Travel: Yes - 10% of the time Minimum Clearance Required: TS.SCI Clearance Level Must Be Able to Obtain: None Potential for Remote Work: ORA_HYBRID Description SAIC is a trusted leader in delivering advanced command and control capabilities across the Department of the Air Force, bringing deep expertise in how cutting edge

Full-time

USD 160,001.00 - 200,000.00 per year

ISSO

Arlington, Virginia

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Today

Leidos' Digital sector is seeking an IA professional to join our team in Arlington, VA - this position is 100% on-site in a secure environment. The ISSO will be responsible for managing the authorizations and risk related to the processing, storage, and transmission of information for one or more programs within the DISA Special Access Program (SAP) portfolio. The ISSO is responsible for meeting regulatory and non-regulatory compliance (security best practices) demands, providing leadership over

Full-time

USD 87,100.00 - 157,450.00 per year

Nessus jobs in Fort Belvoir, VA, USA