UNKNOWN

FEED

You will work side-by-side with FAA Second Level Engineering (SLE) Book Owners inside physical and virtual lab environments to dry-run, test, and formally validate new or modified technical procedures before they are deployed to operational Air Route Traffic Control Centers (ARTCCs). Infrastructure Evaluation: Navigate, configure, and troubleshoot Red Hat Enterprise Linux (RHEL)/Unix operating systems, enterprise Cisco networking architectures, and extensive VMware to ensure instructions accurately mirror real-world target environments.

Everything we do is built on our commitment to do the right thing for our customers, our employees, and our communities. Learn more about the values and culture that are the foundations of our business.

Leidos

Systems Engineer Lead

August 14, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Real-Time Monitoring: Watch over network performance, server health, bandwidth utilization, and core infrastructure via enterprise monitoring tools, such as SolarWinds and Splunk.

NOC Engineer

A. Apogee has an exciting new opportunity for a highly skilled Systems Engineer (Tier 3) to provide support for the Executive Airlift Communications Network (EACN) support task order, which provides Command, Control, Communications (C3) services for multiple critical U.S. Government missions via multiple Air to Global Information Grid (GIG) Gateways (A2G2's) supported by a Systems Integration Lab (SIL). This role may expand to support additional aircraft and ground forces within the Mobility Air Forces (MAF) mission set, and includes ServiceNow development, incident response, and data analysis support for the 89th Airlift Wing''s Government Security Operations Center (GSOC).

Apogee Engineering LLC

Systems Engineer Tier 3

Bachelors Degree OR 4+ years of experience in one of the following: LMR, RF Systems, Radio Communications, Radio Frequency, Wired/Wireless Communication Systems, Military, Motorola equipment, IT Systems, Telecommunications, Public Safety, Engineering or Networking equipment. Key responsibilities include troubleshooting software-driven electronics, managing IP networks, supporting server and network hardware, and ensuring the optimal performance of RF and broadband architectures, encompassing legacy analog, advanced digital P25, and data infrastructure.

YEAR

Motorola Solutions Inc

Field Engineer

Configure, maintain, and troubleshoot network and communications technologiesincluding routers, switches, firewalls, VPNs, segmentation, encryption systems, secure remote access, and fiber/copper connectivityand provide advanced support for network, integration, cybersecurity, and system-administration issues. Responsibilities: Lead the design, implementation, testing, sustainment, and modernization of secure, scalable LAN/WAN and communications infrastructure, translating program requirements into architecture designs, technical specifications, configuration baselines, and implementation plans.

General Dynamics Corp

Senior Advanced Network Design Engineer (TS/SCI Clearance Required)

DUTIES: The successful candidate will be required to have the experience and skills to complete the below tasks: Support the UC architecture including identifying and resolving enterprise level issues/outages, implementing complex call routing schemes, securing VoIP configurations, both classified and unclassified in accordance with DISA STIGs, configuring logging, firewall traversal, performing upgrades and patches, and troubleshooting. Experience with Cisco Unified Communications Manager 12.5 or greater, Cisco Expressway, Cisco Meeting Server, Cisco Telepresence Management System, Cisco Meeting Manager, Cisco Smart Software Manager, Cisco Webex, Cisco Unified Contact Center Express, Cisco Session Border Controller, and Cisco Jabber Working Conditions.

Agile Defense

Cisco UC Engineer

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Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. As a member of the TCS Network Security Services (NSS) team, you will work with both corporate and customer leadership to research, analyze, and implement enterprise-wide network security solutions/capabilities/enhancements to support customer business/mission goals and objectives.

CACI provides information solutions and services in support of national security missions and government transformation for Intelligence, Defense, and Federal Civilian customers. A member of the Fortune 1000 Largest Companies, the Russell 2000 Index, and the S&amp;P SmallCap 600 Index, CACI provides dynamic careers for over 15,800 employees working in over 120 offices worldwide. Visit <a href="http://www.caci.com" target="_blank" itemprop="url" mns_rt="Company">www.caci.com</a>. 
 
 We strive to sustain a corporate culture based on integrity - one that's focused on treating customers ethically and making their priorities our priorities. We pride ourselves in finding and hiring people with the highest intellectual capital, and providing them with challenging opportunities and encouraging their innovation and initiative.

CACI

Senior Firewall Engineer

Manage and support mobile device operations and transitions, including the engineering of new enterprise mobile device solutions collaborating across multiple technical teams. Determination of official compensation or salary relies on several different factors including, but not limited to: level of position, complexity of job responsibilities, geographic location, work experience, education, certifications, Federal Government contract labor categories, and contract wage rates.

SWIFT is a member-owned cooperative that provides the communications platform, products and services to connect more than 10,800 banking organisations, securities institutions and corporate customers in over 200 countries and territories. SWIFT enables its users to exchange automated, standardized financial information securely and reliably, thereby lowering costs, reducing operational risk and eliminating operational inefficiencies. SWIFT also brings the financial community together to work collaboratively to shape market practice, define standards and debate issues of mutual interest. SWIFT is headquartered in Belgium and has over 24 offices worldwide. In 2014 SWIFT processed more than 5.6 billion FIN messages.

Swift

Systems Engineer

A Bachelor’s degree in a Qualified Engineering Field or a related discipline from an accredited college or university plus fifteen (15) years of experience in system engineering (OR) An Associate's Degree, a High School Diploma or GED plus nineteen (19) years of general system engineering experience (OR) A Master’s degree in a Qualified Engineering Field or a related discipline from an accredited college or university plus thirteen (13) years of systems engineering experience (OR) A PhD in a Qualified Engineering Field or a related discipline from an accredited college or university plus eleven (11) years of systems engineering experience. The ideal candidate brings strong system and network administration skills, experience with Cisco networking, and proficiency in creating and interpreting engineering drawings while supporting mission‑critical deployments.

Prosync

System Engineer V

Workable

About our Program: Through the J6 Penetration Handling, Incident, System Health (PHISH) support services task order on the GSM-O contract, we provide IT products, services and solutions to the Pentagon and other DoD offices and agencies for them to meet mission and business requirements. Serve as a People Leader for personnel supporting the Firewall Task Area: Serve as the focal point for all firewall tasks, operations, projects, and assessments.

SAIC is a premier Fortune 500® technology integrator driving our nation's digital transformation. Our robust portfolio of offerings across the defense, space, civilian, and intelligence markets includes secure high-end solutions in engineering, IT modernization, and mission solutions. Using our expertise and understanding of existing and emerging technologies, we integrate the best components from our own portfolio and our partner ecosystem to deliver innovative, effective, and efficient solutions that are critical to achieving our customers' missions.

We are a team of 26,000 strong driven by mission, united purpose, and inspired by opportunity. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.1 billion. For more information, visit saic.com.

Leidos Holdings Inc

Lead Firewall Engineer

Engineers are expected to bring deep expertise in at least one of the following vendor platforms, with cross-platform fluency strongly preferred: Vendor / Framework & Relevant Capabilities Palo Alto Networks (Prisma): Prisma Access (ZTNA 2.0), Prisma Cloud, Cortex XDR/XSIAM, NGFW policy, SD-WAN integration, threat prevention across all ZTA pillars Zscaler: Zscaler Internet Access (ZIA), Zscaler Private Access (ZPA), Zscaler Digital Experience (ZDX), cloud proxy architecture, VPN replacement, SSL inspection Microsoft Zero Trust: Microsoft Entra ID (Azure AD), Conditional Access, Intune/MEM, Microsoft Defender suite, Sentinel SIEM/SOAR, Purview data governance, M365 compliance center CISA ZT Maturity Model: Five-pillar maturity assessment (Traditional, Initial, Advanced, Optimal), cross-cutting capability mapping, agency self-assessment support, roadmap alignment to federal reporting requirements Additional Enterprise Tooling: SCCM, Workspace ONE (WS1), Qualys vulnerability management, and Cisco network/wireless fabric, supporting device posture and network segmentation enforcement across the landscape REQUIRED QUALIFICATIONSExperience 7+ years of experience in cybersecurity engineering, network security, or IT infrastructure roles. Intercede MyID CMS Enterprise architecture and deployment: hands-on experience designing, deploying, configuring, and operating Intercede MyID CMS Enterprise, including credential profiles, enrollment workflows, Smartcard issuance, certificate provisioning, renewal, revocation, and integration with PKI and enterprise identity services.

Celestial Innovations Group

Senior Zero Trust Identity and ICAM Engineer

Sitting within Core Infrastructure, this role owns the security configuration control plane for corporate IT: identity, access, email security, data protection, network security, endpoint posture, vulnerability management, logging, and detection. Data Loss Prevention: Design, implement, and tune DLP controls across email, endpoints, cloud storage, messaging, and SaaS platforms, including controls supporting CUI and other regulated data.

Umbra

Security Operations Engineer

First-hand experience with supporting the monitoring and configuration of Firewall/DMZ infrastructure including Network and Application Firewall Packet Filtering technologies (Palo Alto, Palo Alto virtual FW (cloud), FortiGate, Azure Firewall, Cloudflare, Cisco Email Security Appliances (ESA), A10 (Load Balancer), and proxy devices. Implements firewall rules and policies, perform troubleshooting of firewalls (Palo Alto, Cloud Palo Alto, and FortiGate), CISCO Email Security Appliance (ESA), A10 (load balancer), Proxy platforms, URL filtering across platforms, and analyzing network traffic captures.

Science Applications International Corp

Firewall Operations Engineer

Desired Experience/Skills/Attributes: Working knowledge of Entrust suite of PKI products (Security Manager, Administration Services, Security Manager Proxy) especially in a government setting. Position Description: The Enterprise & Mission Solution Business Unit currently has an opening for a Public Key Infrastructure (PKI) Systems Engineer to support the Department of State (DoS) Bureau of Information Resource Management (IRM) PKI program.

PKI Systems Engineer

ADAPTED_NOW

For over 25 years, we have connected thousands of consultants with meaningful roles through a personal, communication-driven approach, partnering with a diverse client base to build high-performing teams and create lasting impact. This role owns enterprise and data center network initiatives end-to-end, delivering resilient, secure, and scalable architectures aligned to business and compliance requirements.

HOUR

ConsultNet

CCIE Senior Network Engineer

Pay Range : There are a host of factors that can influence final salary including, but not limited to, geographic location, Federal Government contract labor categories and contract wage rates, relevant prior work experience, specific skills and competencies, education, and certifications. Will have experience with the following encryption devices: - General Dynamics family: KG175D, KG175F, KG175G and KG175X - L-3 Family: KG245A and KG245X - Viasat Family: KG250, KG250X, KG255X and KG142.

Crypto Engineer T3

Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

A deep expertise in one of the following areas and working knowledge of one or more of the other following: Network Detection and Response (Vectra, Extrahop, Corelight etc), Endpoint Detection and Response (Carbon Black, CrowdStrike Falcon, Microsoft Defender), Next-Generation Firewalls (Palo Alto, Juniper, Cisco), Intrusion Detection/Prevention Systems (Cisco Firepower), F5 platforms, email/web security gateways (Proofpoint, Cisco). Our team of talented Network and Cybersecurity professionals help design, develop, procure, implement, operate/sustain, and enhance NGA networks and cybersecurity posture in support of national security.

Senior Cybersecurity Engineer

Primary Responsibilities include but are not limited to: Performing with the following duties: Real-Time Monitoring: Watch over network performance, server health, bandwidth utilization, and core infrastructure via enterprise monitoring tools, such as SolarWinds and Splunk. For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Network Engineer Jobs in Arlington, VA

Systems Engineer Lead Leidos

NOC Engineer Leidos

Systems Engineer Tier 3 Apogee Engineering LLC

Field Engineer Motorola Solutions Inc

Senior Advanced Network Design Engineer (TS/SCI Clearance Required) General Dynamics Corp

Cisco UC Engineer Agile Defense

Senior Firewall Engineer CACI

Systems Engineer Swift

System Engineer V Prosync

Lead Firewall Engineer Leidos Holdings Inc

Senior Zero Trust Identity and ICAM Engineer Celestial Innovations Group

Security Operations Engineer Umbra

Firewall Operations Engineer Science Applications International Corp

PKI Systems Engineer Science Applications International Corp

CCIE Senior Network Engineer ConsultNet

Crypto Engineer T3 CACI

Systems Engineer Leidos Holdings Inc

Senior Cybersecurity Engineer CACI

NOC Engineer Leidos Holdings Inc

Systems Engineer Lead Leidos Holdings Inc

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