Network security Jobs in Washington

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FLEX Senior Network Engineer

Marriott International

Bethesda, Maryland, USA

Full-time

Job Description Marriott's Cloud Network Services team is a fast-paced and innovative group that builds network infrastructure to connect hotel guests, properties, and partners. Our cloud solutions such as the Marriott Bonvoy reservations and rewards programs. We are a rapidly growing team that provides the opportunity for autonomy and growth! Reporting into the Senior Director, Cloud Network Services, the Senior Network Engineer develops and maintains technical solutions that adhere to enginee

Network Engineer

Nightwing

Sterling, Virginia, USA

Full-time

Nightwing provides technically advanced full-spectrum cyber, data operations, systems integration and intelligence mission support services to meet our customers' most demanding challenges. Our capabilities include cyber space operations, cyber defense and resiliency, vulnerability research, ubiquitous technical surveillance, data intelligence, lifecycle mission enablement, and software modernization. Nightwing brings disruptive technologies, agility, and competitive offerings to customers in th

Network Systems Engineer

QinetiQ US

McLean, Virginia, USA

Full-time

Company Overview We are a world-class team of professionals who deliver next generation technology and products in robotic and autonomous platforms, ground, soldier, and maritime systems in 50+ locations world-wide. Much of our work contributes to innovative research in the fields of sensor science, signal processing, data fusion, artificial intelligence (AI), machine learning (ML), and augmented reality (AR). QinetiQ US's dedicated experts in defense, aerospace, security, and related fields a

Network Engineer

Leidos

Fort Meade, Maryland, USA

Full-time

Are you ready to make an impact and join a creative, forward-thinking team? We're looking for innovators and forward-thinkers to help us do great things. Leidos is seeking a Network Engineer to join our Defense Enclave Services (DES) team, who will support an extensive digital modernization program critical to DISA and Fourth Estate Agencies. **This is a Monday-Friday day shift; however, must be flexible to shift changes depending on mission requirements. Need to be open to Mids or swing shift

Senior Network Engineer

Booz Allen Hamilton

Reston, Virginia, USA

Full-time

Job Number: R0218929 Network Engineer, Senior The Opportunity: Are you looking for an opportunity to share your experience in designing, developing, and implementing innovative network security solutions to support our country and protect our nation? As a systems security and network security engineer, you will be responsible for the enterprise deployment of the Gigamon Deep Observability Pipeline and GigaVUE Fabric Manager. We need your experience to oversee the development and implementation o

IT Strategy Consultant

Navigant Consulting

Reston, Virginia, USA

Full-time

Job Family: Technology Consulting Travel Required: Up to 25% Clearance Required: Active Top Secret SCI with Polygraph What You Will Do: The Cyber Strategy role is responsible for conducting a review of an organization's cybersecurity services and completing checklists to ensure an organization is meeting IC policy requirements. These cybersecurity services include the Cybersecurity Framework Functions of Identify, Protect, Detect, Respond, and Recover. The IC policy checklists are for ICS 502

IT Security Specialist

Cymertek Corporation

Tysons, Virginia, USA

Full-time

IT Security Specialist LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a detail-oriented and dedicated IT Security Specialist to join our team and safeguard our organization's digital assets. In this role, you will be responsible for identifying and mitigating security risks, implementing best practices, and ensuring the integrity and confidentiality of sensitive information. The ideal candidate will

Senior Network Administrator

General Dynamics

Falls Church, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Network Administration Job Qualifications: Skills: Border Gateway Protocol (BGP), Cisco Routers and Switches, MPLS Networking, Network Security, Network Services Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Network Administrator position supporting the Army National

Senior Network Administrator

General Dynamics Information Technology

Falls Church, Virginia, USA

Full-time

Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able to Obtain: Secret Public Trust/Other Required: None Job Family: Network Administration Job Qualifications: Skills: Border Gateway Protocol (BGP), Cisco Routers and Switches, MPLS Networking, Network Security, Network Services Certifications: None Experience: 5 + years of related experience ship Required: Yes Job Description: Network Administrator position supporting the Army National

Network Engineer

SAIC

Chantilly, Virginia, USA

Full-time

Job ID: 2506827 Location: CHANTILLY, VA, US Date Posted: 2025-06-18 Category: Information Technology Subcategory: Network Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: TS/SCI with Poly Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking an experienced Network Engineer to plan, design, implement, operate, and troubleshoot a high-reliability enterprise network infrastructure. The candidate will suppo

Network Administrator

SAIC

Adelphi, Maryland, USA

Full-time

Job ID: 2507144 Location: ADELPHI, MD, US Date Posted: 2025-06-30 Category: Information Technology Subcategory: Network Engineer Schedule: Full-time Shift: Day Job Travel: Yes, 10 % of the Time Minimum Clearance Required: Top Secret Clearance Level Must Be Able to Obtain: None Potential for Remote Work: No Description SAIC is seeking a proven Network Administrator to join the Army Research Laboratory (ARL) Information Technology (IT) Modernization program and support the full range of

Network Engineer/Analyst

Cornerstone Defense

Herndon, Virginia, USA

Full-time

Location: Herndon, Virginia Type: Contract Job #3656 Title: Network Engineer/Analyst Location: Herndon, VA *Clearance: *Active TS/SCI w/ Polygraph needed to apply * Company Overview: Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team

Information Systems Security Officer (ISSO)

Cymertek Corporation

Tysons, Virginia, USA

Full-time

Information Systems Security Officer (ISSO) LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a detail-oriented and proactive Information Systems Security Officer (ISSO) to support and maintain the security of our information systems. In this role, you will be responsible for ensuring systems operate in compliance with established security policies, procedures, and regulations. You will work closely with t

SD-WAN Network Engineer

SAIC

Beltsville, Maryland, USA

Full-time

Job ID: Location: BELTSVILLE, MD, US Date Posted: 2025-07-07 Category: Information Technology Subcategory: Network Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Top Secret Potential for Remote Work: Yes Description This is an opening for an SD-WAN Senior Network Engineer to support the Department of State's (DoS) Diplomatic Technology Operations Division. This program provides transparent, interconnected

iOS Vulnerability Engineer (Software)

Cymertek Corporation

Tysons, Virginia, USA

Full-time

iOS Vulnerability Engineer (Software) LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are looking for a highly skilled and innovative iOS Vulnerability Engineer (Software) to join our team and help identify, analyze, and mitigate security vulnerabilities in iOS systems and applications. In this role, you will focus on uncovering potential threats, developing secure solutions, and ensuring the integrity of iOS platfo

SD-WAN Network Engineer

SAIC

Springfield, Virginia, USA

Full-time

Job ID: 2507077 Location: SPRINGFIELD, VA, US Date Posted: 2025-07-07 Category: Information Technology Subcategory: Network Engineer Schedule: Full-time Shift: Day Job Travel: No Minimum Clearance Required: None Clearance Level Must Be Able to Obtain: Top Secret Potential for Remote Work: Yes Description This is an opening for an SD-WAN Senior Network Engineer to support the Department of State's (DoS) Diplomatic Technology Operations Division. This program provides transparent, inter

Network Administrator

Cymertek Corporation

Tysons, Virginia, USA

Full-time

Network Administrator LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a skilled and proactive Network Administrator to join our team and ensure the reliability, security, and efficiency of our organization's network infrastructure. In this role, you will be responsible for maintaining and optimizing network performance, troubleshooting connectivity issues, and implementing solutions to enhance system ope

Senior Systems Engineer

Jacobs

Washington, District of Columbia, USA

Full-time

JOB DESCRIPTION Your Impact: . We are looking to hire a Senior System Engineer to support a full range of cyber security services on a long-term contract in Washington DC. The position is full time/permanent and will support a US Government civilian agency. The position is available immediately upon finding a qualified candidate with the appropriate background clearance. This position supports a government client and is fully a remote position Responsibilities: Serving as a technical advisor a

Network Engineer

Leidos

Ashburn, Virginia, USA

Full-time

Department of Homeland Security (DHS), Customs and Border Protection (CBP) Security Operations Center (SOC) is a US Government program responsible to prevent, identify, contain and eradicate cyber threats to CBP networks through monitoring, intrusion detection and protective security services to CBP information systems including local area networks/wide area networks (LAN/WAN), commercial Internet connection, public facing websites, wireless, mobile/cellular, various cloud environments, security

SIEM Engineer

Cymertek Corporation

Tysons, Virginia, USA

Full-time

SIEM Engineer LOCATION Tysons, VA 22182 CLEARANCE TS/SCI Full Poly (Please note this position requires full U.S. Citizenship) KEY SUMMARY We are seeking a skilled and proactive SIEM Engineer to join our cybersecurity team and play a critical role in safeguarding our systems and data. In this role, you will design, implement, and manage Security Information and Event Management (SIEM) solutions, ensuring real-time monitoring, threat detection, and effective incident response. Collaborating with