1,639 Results for

Security Engineer Jobs in Herndon, VA

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Network Engineer, Senior (BG26100956PL) GTSC-Talent Solutions

Fairfax, Virginia

GTSC Bowen Group seeks a skilled Network Engineer to design, build, maintain, and sustain classified network infrastructure supporting enterprise IT operations across three geographically dispersed government sites, including two SCIF facilities serving TS/SCI users. Special Access Program (SAP) Eligibility: Candidates must successfully complete security screening related to foreign contacts, foreign interests, foreign travel, personal conduct, and financial responsibility as part of the SAP access determination process.

10 days ago

Cloud Network Engineer - Associate Ang Signal

Washington, District of Columbia

Job description – Cloud Network Engineer We are seeking a highly skilled and certified Cloud Network Engineer with deep expertise in designing, implementing, and managing complex network architectures across hybrid and multicloud environments. The ideal candidate will have hands-on experience with cloud migrations, network security, and cyber security, particularly within the U.S. Federal sector, including FISMA Moderate and High systems.

30+ days ago

Cloud Network Engineer Ang Signal

Washington, District of Columbia

$120,000–$170,000 / year

2 days ago

Network Engineer - Cisco NextGen Firewalls (TS/SCI with Poly Required) GCI, Inc.

The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. The ideal candidate is a technical practitioner, not just an advisor - someone who can design, implement, and troubleshoot complex network architectures and familiar with the customer's enterprise networks to include Local Area Network (LAN) and Wide Area Network (WAN), and routing protocols.

22 days ago

Software Engineer VTG

Chantilly, Virginia

Full time

Overview: We are seeking an experienced Senior Penetration Tester / Offensive Security Engineer to conduct hands-on security assessments, identify vulnerabilities, evaluate enterprise architectures, and develop actionable risk and threat mitigation strategies. This role requires deep technical expertise in penetration testing, adversarial tactics, system exploitation, network security analysis, and enterprise infrastructure.

30+ days ago

Cyber Systems Engineer Technical Specialist - ISSE Rite-Solutions Inc

There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. The contracts Core Capabilities are: IA Management, Federal Information Security Management Act (FISMA) coordination and reporting, Risk Management Framework (RMF) application, IA compliance measurements and metrics, Assessment and Authorization (A&A), Vulnerability Management, and Cyber Defense support.

30+ days ago

Cybersecurity Implementation Engineer Abile Group, Inc.

Springfield, Virginia

With significant experience serving the Federal Government, we remain dedicated to our employees and clients and seek high‑performing professionals who excel at providing guidance, developing solutions, and delivering implementation support that blends industry best practices with client expertise and Abile’s broad technical capabilities. Abile Group, founded in July 2004 to support the Intelligence Community and its contractors across Enterprise Analytics, IT & Systems Engineering, and Program & Project Management, merged with Valiant Solutions in January 2026 - an established provider of cybersecurity technologies and services for Federal Agencies since 2005.

30+ days ago

Cisco Network Engineer Convergenz

Suitland, MD

Eight (8) years of experience directly supporting a complex infrastructure covering the major aspects of network administration with expertise in troubleshooting IPv4 issues across various protocols and technologies such as OSPF, BGP, EIGRP, static routing, SSH, ACL, VLAN, VTP, STP, SNMP, LACP, vPC, vPort Channels, Wireshark, and TCPdumps with added familiarity in hybrid connectivity to AWS environments. Five (5) years of experience configuring, administering, and maintaining network IT monitoring and management software such as Netscout nGenius and SolarWinds (i.e., NetFlow traffic analysis, bandwidth monitoring, PerfStack, network performance baselines, Traffic Analyzer, IPAM, and NetPath) including monitoring hybrid on?prem/AWS network paths.

21 days ago

Senior Network Engineer (MDM Integration) Science Applications International Corp

Arlington, VA

$120,001–$160,000 / year

Architect secure network zones, gateways, and access controls to safely support traffic flow from enterprise Mobile Device Management (MDM) platforms (Microsoft Intune, VMware Workspace ONE, or MobileIron) into internal law enforcement networks. Install, configure, optimize, and maintain Cisco routers, switches, Voice/Video over IP (VoIP), Data Center, and Cisco Wireless networks using advanced protocols (BGP, OSPF, EIGRP, MPLS, VRF) and secure cloud network services.

30+ days ago

Network Engineers, Senior Engineers & Architects (CBP) Agile Defense

Ashburn, Virginia

$90,000–$150,000 / year

You will work on routing and switching, WAN and LAN transport, wireless, segmentation, and firewalls in a mixed Cisco, Juniper, and Arista environment, alongside field deployment teams, cloud engineers, and security staff. U.S. Customs and Border Protection runs continuous operations across more than 300 land, air, and sea ports of entry, plus Border Patrol stations and the Air and Marine Operations Center.

13 days ago

Network Engineer 4 - Infrastructure Tria Federal

Suitland, MD

30+ days ago

Senior Network Engineer Trident Systems Inc

Fairfax, VA

$86,000–$160,000 / year

Our three operating units: Space Electronic Systems (SES), Integrated C4ISR Systems (ICS) and Optical Precision Systems (OPS), develop within the agile framework which enables us to produce proven, purpose-built systems that solve our customers' mission critical challenges across space, air, land, and sea. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor's legal duty to furnish information.

14 days ago

Cybersecurity Implementation Engineer SITEC Consulting

West Springfield, VA

Full time
Quick Apply

Cybersecurity Implementation EngineerClearance: Active TS/SCIExperience: 6+ yearsDesign, deploy, and modernize enterprise cybersecurity infrastructure across on-premises and cloud environments. This hands-on role supports secure Windows and Linux platforms and helps move complex security capabilities from design through implementation.

25 days ago

Network Engineer III Rubicon Grp, LLC

Alexandria, VA

Experience in reviewing mission related change requirements such as Requests for Change (RFCs) and approved Change Requests (CRQs) and determining impacts on transport activities across the enterprise while providing technical solutions and cost impacts. Elicit requirements using interviews, document analysis, surveys, site visits, scenarios, business analysis and test/workflow analysis.

24 days ago

Controls Engineer, Deployment, Data Center Capacity Delivery Amazon Data Services, Inc.

Herndon, VA

AWS Data centers have multiple components such as generators, uninterruptible power sources, diesel generators, electrical switchgear, power distribution units, variable frequency drives, automatic/static transfer switches, chillers [air-cooled and water-cooled], pumps, cooling towers, heat exchangers, CRAHs, air economizers, etc. - Bachelor’s degree in Mechanical Engineering, Electrical Engineering, or an equivalent engineering science plus 5+ years of relevant controls experience, OR 10+ years of relevant controls experience in lieu of a degree.

30+ days ago

Network Engineer Que Technology Group

Columbia, Maryland

Que Technology Group is seeking an experienced Network Engineer to join a collaborative team supporting the networking environments of two unique operational customers. The ideal candidate has strong experience configuring and sustaining Cisco and Arista networking environments and is comfortable supporting firewalls, cryptographic equipment, and operational systems.

8 days ago

Network Engineer SME (TS/SCI with Poly Required) GCI, Inc.

The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. Provides technical expertise in all areas of network and computer hardware and software interconnection and interfacing, such as routers, switches, firewalls, bridges, gateways, etc.

30+ days ago

Junior Network Engineer Ang Signal

Washington, District of Columbia

The ideal candidate will provide network engineering and support of the enterprise network to support the mission of our federal client, and will have hands-on experience with cloud migrations, network security, and cyber security. Install, wire, and test networking equipment in data centers and telecom closets following detailed engineering diagrams.

30+ days ago

Senior Network Engineer Ang Signal

Washington, District of Columbia

Key Responsibilities Work with a team of network experts to support a service provider scale network that connects multiple high-performance computing sites and data centers, and provides network services to over 30,000 users nationwide. In this role, the candidate will be responsible for supporting the federal agency's network infrastructure and services, day-to-day operations, as well as providing technical leadership on a variety of network projects.

30+ days ago

IT Engineer (Network Infrastructure) -Vienna, VA, Winchester, VA or Pensacola, FL Georgia Tek Systems

Vienna, VA

Ability and willingness to grow skillset for SD-WAN and related technologies such as Cloud Interconnect and Cloud Security services for deployment and traffic flow engineering. ·Maximizes network performance, troubleshoots network problems and outages, scheduling upgrades and collaborating with network architects on network optimization.

11 days ago

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Security Engineer Jobs in Herndon, VA

Network Engineer, Senior (BG26100956PL) GTSC-Talent Solutions

Cloud Network Engineer - Associate Ang Signal

Cloud Network Engineer Ang Signal

Network Engineer - Cisco NextGen Firewalls (TS/SCI with Poly Required) GCI, Inc.

Software Engineer VTG

Cyber Systems Engineer Technical Specialist - ISSE Rite-Solutions Inc

Cybersecurity Implementation Engineer Abile Group, Inc.

Cisco Network Engineer Convergenz

Senior Network Engineer (MDM Integration) Science Applications International Corp

Network Engineers, Senior Engineers & Architects (CBP) Agile Defense

Network Engineer 4 - Infrastructure Tria Federal

Senior Network Engineer Trident Systems Inc

Cybersecurity Implementation Engineer SITEC Consulting

Network Engineer III Rubicon Grp, LLC

Controls Engineer, Deployment, Data Center Capacity Delivery Amazon Data Services, Inc.

Network Engineer Que Technology Group

Network Engineer SME (TS/SCI with Poly Required) GCI, Inc.

Junior Network Engineer Ang Signal

Senior Network Engineer Ang Signal

IT Engineer (Network Infrastructure) -Vienna, VA, Winchester, VA or Pensacola, FL Georgia Tek Systems

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