Engineer Network Systems, Principal ShentelEngineer Network Systems, PrincipalReston, VABuild and manage the security infrastructure of the corporate network to include installing hardware, configuring firewalls and Internet content filters, setting up virtual private networks (VPNs), and performing upgrades. Ideal candidates will have a deep understanding of Cisco technologies, TCP/IP, routing protocols (BGP, OSPF, EIGRP), and switching (VLANs, STP), as well as previous experience with Cisco IOS and network management tools.
Senior Cloud Engineer-Active (TS/SCI with CI Poly) VibrintSenior Cloud Engineer-Active (TS/SCI with CI Poly)Sterling, VAFull timeWorking alongside many of the most talented professionals in public service, we work tirelessly to create and sustain new solutions and services that meet the stringent demands across a variety of customer missions. To meet growing client demand, we are continuously seeking top talent across our core competencies, building a strong pipeline of exceptional professionals ready to support current and future mission needs.
Senior Network Engineer (Security) PeratonSenior Network Engineer (Security)Washington, D.C.$146,000–$234,000 / yearFull timePeraton provides a secure, worldwide, high-performance communications network comprised of real-time interactive applications operating over a dedicated IP backbone with secure services for complex national and worldwide executive-level communications. Peraton provides the O&M of the network infrastructure and its components, integration for development of hardware and software solutions, and task support for the delivery of system, network, software, and security solutions.
Senior Network Engineer (Wireless) PeratonSenior Network Engineer (Wireless)Washington, D.C.$146,000–$234,000 / yearFull timePeraton provides a secure, worldwide, high-performance communications network comprised of real-time interactive applications operating over a dedicated IP backbone with secure services for complex national and worldwide executive-level communications. Peraton provides the O&M of the network infrastructure and its components, integration for development of hardware and software solutions, and task support for the delivery of system, network, software, and security solutions.
Network Operations Engineer Intelice SolutionsNetwork Operations EngineerFrederick, MarylandIntelice Solutions is a growth-focused Managed Services Provider (MSP) delivering proactive IT, cloud, cybersecurity, and network management services to organizations across multiple industries. This role is ideal for a technology professional who enjoys solving complex problems, leveraging automation, improving operational efficiency, and helping clients achieve reliable, secure, and high-performing IT environments.
Principal Endpoint Security Systems Engineer LeidosPrincipal Endpoint Security Systems EngineerBethesda, MarylandWorking in a hybrid cloud/on-prem mission environment the engineer will support integration of Linux and Windows hosted mission systems with the endpoint security product and maintaining the scan policies to ensure proper protection of mission systems from external threats. January 21, 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.
IT Senior Network Engineer Centurion HealthIT Senior Network EngineerSterling, VirginiaPosition Overview: The Senior Network Engineer will be part of Network team responsible to design, deploy and maintain scalable, highly available network infrastructure spanning across multiple co-location facilities that support nearly 10,000 users and growing. Deep understanding of networking technologies and protocols such as, L2/L3 Routing/Switching, IPSEC, BGP, MPLS, VRF, QoS, Spanning-Tree, OSPF, 802.11, ACL, DHCP, TCP/IP, DNS.
Referral Network Engineer - DHA Ne&S ASRC Federal Holding CompanyReferral Network Engineer - DHA Ne&Sarlington, VAUses diagnostic utilities to identify and isolate problems encountered on different mediums and network protocols, gather latency statistics and find specific network bottlenecks, evaluate problems and implement fix actions through device reconfiguration or replacement depending on the circumstances. Possess experience in routed, switched and shared LAN environments that operate such items as current supported versions of Microsoft OS, Windows Active Directory, UNIX and OpenVMS and employ routers, switches, and terminal servers as well as various local and long-haul WAN connectivity.
Senior IT Systems/Network Engineer - Fort Belvoir, VA OBXtek Inc.Senior IT Systems/Network Engineer - Fort Belvoir, VAFort Belvoir, VirginiaFull timeLead efforts collaboratively with developers, designers, product owners, and partner organizations to rapidly develop prototype technical software and hardware solutions. Major Duties and Responsibilities: Provide technical reviews of engineering design and implementation plans of network infrastructure modernization projects to ensure compliance with established network architecture.
Cyber Security Engineer NoblisCyber Security EngineerWashington, Washington, DC$86,800–$135,625 / yearFull timeCompensation at Noblis is determined by various factors, including but not limited to, the combination of education, certifications, knowledge, skills, competencies, and experience, internal and external equity, location, clearance level, as well as contract-specific affordability, organizational requirements and applicable employment laws. Personnel performing cybersecurity functions must meet DoD cybersecurity workforce certification requirements in accordance with DoD Manual 8140.3 for their designated role within 9 months of hire.
Network Security Engineer CACI International Inc.Network Security EngineerColumbia, MD$120,800–$265,800 / yearPay 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. Implement specific network solutions to support server requirements to include load-balancing, VPN's, firewall contexts, and network address translation (NAT) where appropriate.
Enterprise Network DNS Ipam Engineer CACI International Inc.Enterprise Network DNS Ipam EngineerSterling, VA$120,800–$265,800 / yearPay 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. You will be responsible for the design, implementation, and maintenance of the company's DNS and IP address management systems, including the management of ASNs and their integration into the broader network infrastructure.
Network Management Systems (NMS) Linux Engineer CACI International IncNetwork Management Systems (NMS) Linux EngineerSterling, VA$131,800–$290,000 / yearPay 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. The successful candidate will be responsible for designing, implementing, and maintaining Linux-based systems, ensuring high performance, reliability, and security of our network monitoring and management infrastructure.
Core/Wan Network - Tier 3 CACI International Inc.Core/Wan Network - Tier 3Sterling, VA$120,800–$265,800 / yearPay 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. The Opportunity: Team CACI has an exciting and challenging opportunity available for a Network Designer supporting an Intelligence Community customer's CORE/wide-area (WAN), networks across multiple security domains.
NewNetwork Engineer Sienna Systems CorporationNetwork EngineerFalls Church, VA$100,000–$105,000 / yearSienna Systems is seeking a Network Engineer to join our U.S. Customs and Border Protection Enterprise Network Architecture & Engineering Services Support (ENAESS) team, in Ashburn, Virginia. This is the data center side of the CBP network: Cisco Application Centric Infrastructure fabric, F5 load balancing, Firepower firewalls, NetScout and IXIA instrumentation, and the circuits and DMZ architecture tying it together.
Senior Network Infrastructure Engineer Connect CentricSenior Network Infrastructure EngineerWashington, DCFull timeReporting to the Manager of Networking, you will implement network solutions and support network-related technology, including routers, switches, firewalls, NAC, VPN, load balancers, monitoring tools, and core services like DNS and DHCP. Hands-on AWS Cloud experience, including VPC, EC2, ALB/NLB, Transit Gateway, Routing, Security Groups/NACLs, Network Firewall, VPN, Direct Connect, CloudFormation, and IAM roles.
Sr. Automation Engineer (Networks) Applied Network SolutionsSr. Automation Engineer (Networks)Chantilly, VA$100,000–$200,000 / yearInstall, configure, and maintain Cisco Network Services Orchestrator (NSO) solutions and associated network infrastructure components, ensuring high availability, performance, and reliability. What we do: Our vision is for a future in which talent and customers alike come to ANS because of our reputation for delivering technical excellence, solving our nation's toughest challenges and our ability to exceed expectations.
Cyber Security Development Engineer - JobID-0255 Innovative Defense TechnologiesCyber Security Development Engineer - JobID-0255Arlington, Virginia$90,000–$184,000 / yearThe Cyber Security Development Engineer is a highly technical role focused on ensuring the security and resilience of our software and systems and will be responsible for designing, building, and maintaining secure systems, applications, and infrastructure to protect against cyber threats. About The Role: Innovative Defense Technologies (IDT), a leading defense technology company, is seeking a Cyber Security Development Engineer to be part of our Advanced Capabilities team and based out of our Arlington, VA location.
Network Firewall Engineer CACI International Inc.Network Firewall EngineerSterling, VA$120,800–$265,800 / yearPay 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 valued team member, you'll be part of a high-performing group dedicated to our customer's missions and driven by a higher purpose - to ensure the safety of our nation.
Application Security Engineer LeidosApplication Security EngineerAshburn, VirginiaThe Department of Homeland Security (DHS), Customs and Border Protection (CBP) Cyber Security Directorate (CSD) 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, cloud, security devices, servers and workstations. Leidos is looking for an Application Security Engineer to support: Application Security Operations and Maintenance, Application Security Configuration Management and Application Security Logging and Vulnerability Management: Ensure continuous monitoring of all CSD managed applications and implement an alerting system for critical incidents.