Senior Firewall Engineer CACI International Inc.Senior Firewall EngineerSpringfield, VA$75,200–$158,100 / yearThe OpportunityAs 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. 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.
Vectraai Integration Engineer, Mid Booz Allen Hamilton Inc.Vectraai Integration Engineer, MidEast Riverdale, MD$69,400–$158,000 / yearHS diploma or GED and 7+ years of experience supporting IT projects and activities, Associate's degree and 5+ years of experience supporting IT projects and activities, Bachelor's degree and 3+ years of experience supporting IT projects and activities, or Master's degree and 1+ years of experience supporting IT projects and activities. Ability to obtain a DoD 8570 Cybersecurity Service Provider - Infrastructure Support Certification (CSSP-IS) Certification, including CEH, CySA+, GICSP, SSCP, CHFI, CFR, Cloud+, or CND Certification, within 30 days of start date.
Sr. Software Engineer (Servicenow) Applied Network SolutionsSr. Software Engineer (Servicenow)Chantilly, VA$100,000–$200,000 / yearCompliance with Department of Defense (DoD) 8140.03 (8570) Information Assurance Technical (IAT) Level 2. Oversee and guide team members in the deployment, administration, development, and integration of the ServiceNow suite of tools on RHEL and Windows operating systems, while facilitating collaboration with database developers on MariaDB requirements. Oversee the delivery of well-developed and engineered solutions as deployable packages, ensuring Operations teams can transition solutions to production environments with minimal manual intervention and high success rates.
Telecom And Wireless Network Technician Booz Allen Hamilton Inc.Telecom And Wireless Network TechnicianAnnapolis Junction, MD$77,600–$176,000 / yearThe Opportunity: We are seeking a highly motivated and skilled 5G/Telecom Network Engineer to join our team and contribute to the design, deployment, optimization, and maintenance of next-generation telecommunications networks. Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role.
Lead LAN/WAN Engineer CACI International IncLead LAN/WAN EngineerWashington, DC$105,100–$231,100 / yearServing as a technical expert on established and ad-hoc project teams providing technical direction, interpretation, and alternatives on existing and new services to meet both architectural and operational needs. 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.
Senior Cyber Security Engineer CACI International IncSenior Cyber Security EngineerSpringfield, VA$113,200–$237,800 / yearA 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.
NewTelecommunications Systems Engineer - SME (FENS) PeratonTelecommunications Systems Engineer - SME (FENS)Herndon, Virginia$112,000–$179,000 / yearFull timeThe ideal candidate brings a strong blend of Network and Security technical experience, with the ability to migrate and manage complex system architectures—including global telecommunications and network infrastructures (SD-WAN, MPLS, and enterprise LAN/WAN environments) . As a Technical Project Manager for FAA Enterprise Network Services (FENS) program, you play a critical role—aligning diverse technical teams, managing risk early, and ensuring outcomes that directly support national aviation priorities.
NewSystems Integration Engineer - SME (TELECOM - FENS) PeratonSystems Integration Engineer - SME (TELECOM - FENS)Herndon, Virginia$112,000–$179,000 / yearFull timeYou will support the build and integration of the new FAA’s Enterprise Network Service (FENS) infrastructure with the existing network and migrate the services to the new modern secured, resilient and scalable network infrastructure across the National Airspace System (NAS). Experience with onboarding and transitioning the network segments/devices to new Enterprise Network Management Tools (e.g., Science Logic, SolarWinds, Splunk, NetScout, Datadog) and maintain full asset visibility and real-time monitoring.
NewFirewall Operations Engineer BelcanFirewall Operations EngineerBeltsville, MD$90,000–$110,000 / yearFirst-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.
Lead Systems Engineer TekSynapLead Systems EngineerMaryland$130,000–$160,000 / yearFull timeTranslates high level product development strategies into system requirement specifications and works with other engineering disciplines to develop lower-level detailed implementation requirements. Translates high-level product development strategies into system requirement specifications and works with multi- discipline engineering teams to develop lower-level detailed requirements.
Network & Security Infrastructure Engineer NCyberNetwork & Security Infrastructure EngineerColumbia, Maryland$119,047–$158,393 / yearFull timeOverview: Ncyber is seeking a Network & Security Infrastructure Engineer to architect, secure, and operate the networking infrastructure supporting mission-critical software platforms for the National Security Community. Experience with one or more of the following is highly desirable: Network architectures supporting sensitive operational environments Operational security (OPSEC) and secure communications.
Senior Systems Modeling Engineer, Beam Planning & Network Optimization Blue OriginSenior Systems Modeling Engineer, Beam Planning & Network OptimizationWashingtonAs a large-scale low Earth orbit constellation operating thousands of satellites across multiple orbital shells, TeraWave must solve resource assignment problems of extraordinary combinatorial complexity — from deciding which beams illuminate which ground cells at each moment in time, through routing data across a dynamic optical inter-satellite link mesh with thousands of nodes and time-varying topology, to assigning satellites to gateways and managing handovers as the constellation moves overhead. As part of this team, you will also contribute to the broader modelling of TeraWave's constellation performance — including its ability to maintain consistent customer service through progressive deployment phases, satellite failures, and orbital manoeuvres — bringing the network optimization perspective into system-level figures of merit and ensuring that resource assignment trades are evaluated in the context of their impact on end-to-end service delivery.
Network Operations Manager Systems Planning and AnalysisNetwork Operations ManagerAlexandria, VirginiaFull timeSPA provides eligible employees with an opportunity to enroll in a variety of benefit programs, generally including health insurance, flexible spending accounts, health savings accounts, retirement savings plans, life and disability insurance programs, and a number of programs that provide for both paid and unpaid time away from work. Design, deploy, configure, maintain , and optimize enterprise network infrastructure, including routers, switches, firewalls, wireless networks, VPNs, and cloud networking components.
IT Systems Engineer - JobID-0034 Innovative Defense TechnologiesIT Systems Engineer - JobID-0034Arlington, Virginia$90,000–$184,000 / yearAbout The Role: Innovative Defense Technologies (IDT), provider of cutting-edge cloud-based integration, automated testing and data analysis for complex, mission-critical systems in the US Department of Defense (DOD), is seeking an IT Systems Engineer to be part of our Advanced Capabilities team and based out of our Arlington, VA location. At each location, our employees work together in a modern, snack-filled, and social office space, designing innovative solutions for our defense industry customers.
NewSenior Network Engineer CACI International Inc.Senior Network EngineerSpringfield, VA$120,800–$265,800 / yearDemonstrated experience modernizing complex enterprise network systems deploying routing protocols and technologies such as Border Gateway Protocol (BGP), Open Shortest Path First (OSPF), Intermediate System to Intermediate System (IS-IS), Multi-Protocol Label Switching (MPLS), Layer 3 Virtual Private Networks (VPN), Layer VPNs, and Mobile-VPN. Certified as a Cisco Certified Internetwork Expert (CCIE), Cisco Certified Network Professional (CCNP), CompTIA Network+, or Juniper Network Certified Expert - Enterprise (JNCIE-ENT) or 15+ years of experience in design, implementation, and configuration with Cisco, Juniper, and KG family cryptographic equipment product lines.
System Integration Engineer LeidosSystem Integration EngineerArlington, VirginiaBachelor’s degree in engineering or related field with 4+ years of prior relevant experience or a master’s degree with at least a year experience in one of these areas: computer engineering, software engineering, test engineering or related field. June 8, 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.
Implementation Engineer Booz Allen Hamilton Inc.Implementation EngineerFort Meade, MD$61,900–$141,000 / yearWork closely with other IT and facilities team members, project teams, clients, architects, engineers, subcontractors, vendors, material suppliers, and other technical resources to analyze business and technical requirements to develop system designs, estimates, implementation plans, management and customer reports, and coordinate the structured cabling design with other design disciplines. Onsite: If this position is listed as onsite, work will primarily be performed at a Booz Allen office or customer facility, where employees will collaborate directly with colleagues and customers as required by the role.
Wireless Engineer Booz Allen HamiltonWireless EngineerUsa, Maryland$61,900–$141,000 / yearExperience managing and maintaining full deployments of Aruba Enterprise Network, Guest Management Systems such as ClearPass, Centralized Management Systems such as AirWave, and wireless controllers and access points. HS diploma or GED and 9+ years of experience with wireless networks, Associate’s degree and 7+ years of experience with wireless networks, or Bachelor’s degree and 3+ years of experience with wireless networks.
NOC Engineer LeidosNOC EngineerChantilly, VirginiaAugust 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.
Lead Firewall Engineer LeidosLead Firewall EngineerWashington DC, District of ColumbiaJuly 29, 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. 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.