Nessus jobs in Chantilly, VA

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

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 Cloud Information System Security Engineer

Chantilly, Virginia

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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

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

Systems Administrator

Herndon, Virginia

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Today

We are seeking a skilled and detail-oriented Systems Administrator to support and maintain enterprise Windows and Linux server environments in a fast-paced, mission-focused organization. This role is responsible for building, configuring, securing, and monitoring systems across virtual and physical infrastructures, while ensuring compliance with security and accreditation requirements. The ideal candidate brings strong technical expertise, a proactive troubleshooting mindset, and the ability to

Full-time

Site Reliability Engineer (DevOps)

Reston, 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 111,800.00 - 221,800.00 per year

Cybersecurity Lead - ISSM

Chantilly, Virginia

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Today

Job ID: 2614832 Location: Chantilly, VA, US Date Posted: 2026-07-23 Category: Cyber Subcategory: Cyber Engineer 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 technologies are e

Full-time

USD 160,001.00 - 200,000.00 per year

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

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

Information System Security Officer

Chantilly, Virginia

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Today

MANTECH is seeking a motivated, career and customer-oriented Information System Security Officer (ISSO) to join our team in Chantilly, VA. Responsibilities include but are not limited to: Ensures network nodes are operated, maintained, and disposed of in accordance with security policies and practices. Perform Information System Security Officer (ISSO) duties in support of in-house and external customers. Also, perform duties as the alternate Information Systems Security Manager (ISSM). Cyber

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

Information Systems Security Engineer

Reston, Virginia

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Today

Leidos is seeking an experienced Information Systems Security Engineer (ISSE) to lead the security architecture, design, and deployment of mission-critical applications across unclassified, classified, and corporate networks. This role is highly dynamic, requiring a security SME who can bridge network boundaries across DTRA, DIA, and corporate infrastructures leveraging AWS multi-region and hybrid cloud environments. The ideal candidate will design robust Cross Domain Solutions (CDS) and ensure

Full-time

USD 87,100.00 - 157,450.00 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. Cyber Security Engineer

Chantilly, Virginia

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Today

Seneca Technologies is part of the Seneca Nation Group (SNG) portfolio of companies. SNG is Seneca Holdings' federal government contracting business that meets mission-critical needs of federal civilian, defense, and intelligence community customers. Our portfolio comprises multiple subsidiaries that participate in the Small Business Administration 8(a) program. To learn more about SNG, visit the website and follow us on LinkedIn. Our team of talented individuals is what makes us successful. To

Full-time

USD 135,000.00 - 220,000.00 per year

ISSO, Junior

Ashburn, Virginia

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Today

Overview Bowhead seeks a Junior Information Systems Security Officer (ISSO) who will be a part of a dynamic, energetic, and mission-oriented team providing Technical Integration Management Support (TIMS) to the U.S. Customs and Border Protection (CBP) Passenger Systems Program Directorate (PSPD). This position will support the primary ISSOs to maintain and protect the security posture of mission-critical CBP applications. This position operates during core business hours of 8:00 AM - 4:00 PM, M

Full-time

USD 90,000.00 - 125,000.00 per year

Sr. Control Assessment Analyst

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

Quantico, Virginia

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Today

Full-time

Junior Systems Administrator

Germantown, Maryland

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Today

Overview Edgewater Federal Solutions is currently seeking a Junior System Administrator to provide support to the DOE Office of Environment, Health, Safety and Security (EHSS) contract located in Germantown, Maryland.This position is ONSITE. Responsibilities Maintain software/hardware inventory records.Perform purchasing duties from cradle to grave.Perform client hardware installation and support.Provide customer support for developed and maintained systems.Assist in the installation, operatio

Full-time

USD 75,000.00 - 85,000.00 per year

Senior Cloud Information System Security Engineer

Washington, District of Columbia

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Today

Full-time

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

Nessus jobs in Chantilly, VA, USA