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Network Security Jobs in Oakton, VA

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Network Security Engineer MANTECH

Chantilly, VA

Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations. High School Diploma or GED with 7+ years of progressively responsible experience in Network Security Engineering, Network Analysis, or a related technical discipline.

2 days ago

Network Support Specialist GStek Inc.

Fort Meade, MD

$85,000–$90,000 / year
Full time
Quick Apply

Clearance: Selected candidates will be subject to a government security investigation and must meet eligibility requirements for access to classified information. GStek encourages veterans, disabled veterans, and disabled individuals to apply for any open position for which they feel they are qualified.

30+ days ago

Physical Security/Information Assurance (PS/IA) Specialist 1 ESC, Inc.

Joint Base Andrews, MD

$110,000–$115,000 / year
Contractor
Full time
Quick Apply

This position provides physical security (PS) and information assurance (IA) support for collateral, SCI and SAP systems in accordance with JSIG and other DoD and national guidance for facilities with internal networks and guest systems.

30+ days ago

Network Deployment Engineer MANTECH

Chantilly, VA

Experience with Microsoft Windows 2008/2012/2016/2019 Servers; Microsoft Windows 10; administering Microsoft Exchange, Active Directory, and workstation and server hardware; administering Microsoft Office 2010/2016; administering DNS, Group Policy, and PKI; administering vSphere, Horizon View, data backup, and antivirus software; basic networking including DHCP/TCPIP; experience with deploying workstation images; and experience with thin and/or zero clients. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.

4 days ago

Network Engineer MANTECH

Chantilly, VA

Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations. High School Diploma or GED with 7+ years of progressively responsible experience in Network Engineering, Network Analysis, or a related technical discipline.

2 days ago

Adversary Network Intelligence Analyst MANTECH

Quantico, VA

In this role, you will apply specialized SIGINT and all-source network intelligence techniques to analyze, map, and evaluate foreign communications and adversary IT infrastructure, directly supporting tactical Marine Corps planners, defensive cyber teams, and strategic operations. Finished Intelligence Production: Author timely, accurate intelligence products—including technical assessments, briefings, network diagrams, and threat reports—tailored for USMC intelligence officers, tactical planners, and strategic leadership.

Today

Network Engineer- WAN (Sr. Consultant level) Visa

Ashburn, VA

$152,200–$243,700 / year

Degree in Math, Science, Engineering, or Computer Science, Information Systems or related field OR Bachelor’s degree in Math, Science, Engineering, or Computer Science, Information Systems or related field AND minimum two (2) years of experience in a directly related field OR minimum four (4) years of directly related experience. This role plans, designs, and implements networked systems, manages configurations, supports and troubleshoots network problems, and coordinates with vendors for installation of routers, bridges, concentrators, and switches.

4 days ago

Cyber Network Threat Analyst MANTECH

Springfield, VA

Detecting anomalous network activity through data analysis, evaluating intrusion detection systems, incident tickets, event and log analysis, and security change tracking. The Counterintelligence Threat Technical Analyst will leverage their strong technical background and knowledge to support the Sponsor’s mission by providing expert threat analysis and cyber defense support.

3 days ago

Network Engineer By Light Professional IT Services

Germantown, MD

This role is responsible for system configurations, deployment strategy, developing and maintaining user documentation, developing and maintaining readiness checklist, monitoring system performance, and identifying and resolving technical issues to ensure high system uptime and security. Familiarity of telecommunications services, including secure and non-secure phone systems, VoIP, fax, data networks, video teleconferencing, and satellite (Iridium/Starlink) communications.

14 days ago

Network Based Systems Analyst - III Base One Technology

Arlington, VA

$100,000–$140,000 / year
Contractor
Quick Apply

Provides remote and onsite advanced technical assistance, proactive hunting, rapid onsite incident response, and immediate investigation and resolution using host-based, network-based and cloud-based cybersecurity analysis capabilities. Team personnel provide front line response for digital forensics/incident response (DFIR) and proactively hunting for malicious cyber activity.

30+ days ago

Network Engineer (Cloud) By Light Professional IT Services

Alexandria, VA

Additionally, this individual should have experience with the setup and maintenance of VPN tunnels, vLAN configurations, wireless network configurations, IPv6 and IPv4 (including complex sub-netting) and network security (Cisco ASA Firewalls, ACLs, IPsec, and other encryption methodologies). Proficient in using network management and monitoring platforms such as Arista CloudVision, Riverbed, NetFlow, TAPs, SPANs, AWS Network Manager, Azure Network Watcher, or equivalent third-party solutions for visibility, diagnostics, and topology tracking.

14 days ago

NOC Support Engineer Inmarsat Government, Inc

Reston, VA

Full time

Leveraging an industry-leading scalable, multi-band network infrastructure, Inmarsat Government offers a suite of managed network services and end-to-end communication solutions to support users on land, at sea and in the air, even in the world’s most remote regions. The NOC Support Engineer is responsible for maintaining, modifying, and managing the NOC's software and monitoring infrastructure, including hardware and software applications used to monitor and manage Inmarsat Government's global MPLS and SATCOM networks.

30+ days ago

Transport Network Automation Engineer Jobot

MONTGOMRY VLG, MD

$120,000–$150,000 / year
Quick Apply

The ideal candidate combines deep enterprise networking expertise with strong network automation skills and will help improve the repeatability, reliability, security, and traceability of multi-site network deployments while reducing manual configuration and engineering effort. We are seeking an experienced Transport Network Automation Engineer to design, develop, and maintain an end-to-end network automation framework that transforms engineering designs into validated, device-specific configurations and controlled production deployments.

12 days ago

Sr. System and Network Engineer (on-site) CFS

Chantilly, VA

$120,000–$130,000 / year

This individual will serve as a key technical resource supporting Microsoft 365, Azure, networking, and security initiatives in a modern SaaS-focused environment. This is an excellent opportunity for a hands-on cloud infrastructure professional seeking autonomy, visibility, and the opportunity to help drive technology initiatives in a collaborative environment.

11 days ago

Network Design Engineer By Light Professional IT Services

Arlington, VA

The Network Design Engineer will adhere to U.S. Army engineering processes during the development of all submissions; identify additional processes and documentation formats, as necessary submit site specific reports and drawings to Government for review and approval and adhere to the Government’s established process for reviewing, updating, approving, and disseminating Design and Engineering documents. The Design and Engineering Site Lead must be experienced and familiar with the design and configuration of Layer 2 and Layer 3 networks including spanning tree, software defined networking, VLANs, Virtual Network Identifiers (VNI)s, VXLANS, VRFs, Hostnames, OEM equipment from CISCO.

14 days ago

Lead Network Engineer (WAN Design and Implementation) System One

Fairfax, VA

$100–$120 / hour
Quick Apply

This role will manage a team of seven network engineers across multiple time zones, drive technical decisions, and partner closely with customer stakeholders and engineering leadership to ensure successful delivery. Lead the design and implementation of a global Wide Area Network (WAN) and serve as the senior customer-facing technical authority for the program.

12 days ago

Senior Network Engineer - Voice Jobot

Washington, DC

$190,000–$225,000 / year
Quick Apply

We are an enterprise IT and network engineering firm delivering Enterprise Network Engineering, Enterprise IT, Program Management, and Project Management support to large commercial corporations, government agencies, and government contractors across the Washington, DC metro area and beyond. We are seeking a Senior Network Engineer with deep Cisco CUCM and Collaboration expertise to serve as a technical leader on business-critical voice, video, and data networks supporting executive-level government agency missions.

Today

Information System Security Officer PlanIT Group

Falls Church, VA

Quick Apply

Job Description: Information System Security Officer Conducts assessments of threats and vulnerabilities, determines deviations from acceptable configurations or enterprise or local policy, assesses the level of risk, and develops and/or recommends appropriate mitigation countermeasures in operational and non-operational situations. Task description and/or any specific requirements: • Ability to manage responsibility for security assessments of a variety of applications or domains, to include cloud computing, and to manage several project/initiatives of large size, complexity, and risk.

12 days ago

Splunk Cyber Security SME (Remote) PlanIT Group

Arlington, VA

Remote

Quick Apply

Manages knowledge objects (fields, extractions, tags, event types, lookups, workflow actions, aliases, macros, and so on) – through automations, scripting, management server functions; to include. This role demands deep expertise in Splunk system architecture, design, implementation, configuration and operational support in a hybrid on-prem Unix/Linux and cloud-based environment.

12 days ago

DevOps/Azure Networking - Remote Levi, Ray & Shoup

Washington DC, DC

Remote

$150,000–$180,000 / year

This role is ideal for someone who enjoys solving open‑ended technical problems, translating high‑level requirements into well‑architected solutions, and advising on best practices across networking, security, and cost optimization. This is a contract consulting role designed for a hands‑on professional who can independently design, assess, and implement secure, scalable Azure networking and DevOps solutions with minimal oversight.

14 days ago

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Network Security Jobs in Oakton, VA

Network Security Engineer MANTECH

Network Support Specialist GStek Inc.

Physical Security/Information Assurance (PS/IA) Specialist 1 ESC, Inc.

Network Deployment Engineer MANTECH

Network Engineer MANTECH

Adversary Network Intelligence Analyst MANTECH

Network Engineer- WAN (Sr. Consultant level) Visa

Cyber Network Threat Analyst MANTECH

Network Engineer By Light Professional IT Services

Network Based Systems Analyst - III Base One Technology

Network Engineer (Cloud) By Light Professional IT Services

NOC Support Engineer Inmarsat Government, Inc

Transport Network Automation Engineer Jobot

Sr. System and Network Engineer (on-site) CFS

Network Design Engineer By Light Professional IT Services

Lead Network Engineer (WAN Design and Implementation) System One

Senior Network Engineer - Voice Jobot

Information System Security Officer PlanIT Group

Splunk Cyber Security SME (Remote) PlanIT Group

DevOps/Azure Networking - Remote Levi, Ray & Shoup

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