Firewall Operations Engineer | Secret Clearance ConcerasFirewall Operations Engineer | Secret ClearanceBeltsville, MDFull timeFirst-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.
Senior Computer Systems Engineer / Architect – Winchester, VA JobsonboardSenior Computer Systems Engineer / Architect – Winchester, VAPurcellville, VirginiaBased full-time at our headquarters in Winchester, VA , this position provides systems engineering and IP network support focused on emergency services routing, location information provisioning, interoperability coordination, and technical risk reduction supporting Army Public Safety Answering Point (PSAP) connectivity. We are seeking a senior-level Systems Engineer to support Enhanced 9-1-1 (E-911) implementation activities associated with Army Voice Modernization.
Infrastructure Engineer Electrosoft Services, IncInfrastructure EngineerWashington, DCThe engineer is responsible for inventory, installation, replacement, troubleshooting, upgrades, preventative maintenance, ticket response, field dispatch, system documentation, and coordination with STIM technical teams, federal stakeholders, OPDIV points of contact, and logistics/inventory staff. This role supports security tools, supporting infrastructure, client computer systems, servers, workstations, switches, KVM/console devices, APC/rack management devices, and related network/security equipment.
Firewall 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.
Lab Systems Engineer / Top Secret with SCI eligibility PeratonLab Systems Engineer / Top Secret with SCI eligibilityArlington, Virginia$112,000–$179,000 / yearFull timeCollaborate directly with malware analysts and reverse engineers to implement the specific topologies, device networks, and virtual sandboxes they require, ensuring total network containment and rapid environment resets. Infrastructure Design & Solutioning: Design and build underlying infrastructure solutions to support the virtualization, emulation, and interconnection of various network device types and analysis systems as requested by the reverse-engineering team.
NewVoice & Video Engineer (Tier II) PeratonVoice & Video Engineer (Tier II)Washington, D.C.$104,000–$166,000 / yearFull timeThe Voice and Video Technician is responsible for but not limited to: Tier II phone support of reported customer incidents supporting network conference room video systems, desktop video systems, video conferencing systems, video gateways, and video control systems. We support a secure, worldwide, high-performance communications network comprised of real-time interactive applications allowing complex national and worldwide communications.
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.
NewPrincipal Cyber Security Engineer ManTech International CorpPrincipal Cyber Security EngineerChantilly, VA$141,500–$236,000 / yearThere 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. Experience deploying and supporting enterprise security software products such as firewalls, IPS, Anti-Virus solutions, application firewalls, high availability solutions, network management systems, and virtual systems.
Systems Integration Engineer (Telecom) - Senior PeratonSystems Integration Engineer (Telecom) - SeniorHerndon, Virginia$104,000–$166,000 / yearFull timeYou will help execute the transition from older legacy copper (TDM) systems to modern fiber and IP networks across the National Airspace System (NAS), working closely with the key stakeholders including Systems Integration Engineer SME for guidance, technical direction, and collaboration. Lead Modernization Initiatives: Deep knowledge and understanding of legacy copper and TDM transport systems is required to apply advanced engineering expertise and direct their transition to fiber based and IP enabled architectures across multi state environments.
Security Engineer SCOUT SolutionsSecurity EngineerWashingtonHands-on network operations experience in multi-site Windows and Linux environments – Data circuits, Firewall/VPN, TCP/IP and routing protocols, Switches (CISCO), File servers (Linux), Data storage, and Windows servers running COTS and custom applications etc. Strong knowledge of Cloud related security, engineering, design, architectural, maintenance, business modeling, or similar areas related to the information technology project being performed.
NewSenior Firewall Engineer CACI International IncSenior Firewall EngineerSpringfield, VA$75,200–$158,100 / 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 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.
Software Engineer (ServiceNow) Applied Network SolutionsSoftware Engineer (ServiceNow)Chantilly, VA$100,000–$200,000 / yearThe NMS IT Software Designer will provide expert knowledge of network management systems, operating systems, commercial software, government software, and full integration of toolsets and servers. Proven experience using APIs Design and implement integrations between ServiceNow, Cisco (NSO), GOTS, and other enterprise tools using REST/SOAP APIs, IntegrationHub, and MID Server.
Sr. Network Architect SME System OneSr. Network Architect SMEWashington, District of ColumbiaThe ideal candidate is not only a subject matter expert in BGP, OSPF and VXLANs, but also a well-rounded network engineer who can support day-to-day operations, contribute to security and visibility platforms, and drive innovative improvements across the network. Design, implement, and operate modern data center fabrics (spine-leaf, VXLAN/EVPN) including integration with cloud and virtual infrastructure platforms with a focus on stability, scalability, and operational simplicity .
Security Engineer / Network Engineer (Dod | AWS Govcloud) CredenceSecurity Engineer / Network Engineer (Dod | AWS Govcloud)McLean, VA$120,000–$150,000 / yearCredence has an immediate opening for a highly skilled Security Engineer / Network Engineer to support and secure a mission-critical AWS GovCloud environment within a DoD-aligned ecosystem. We provide cutting-edge solutions, including AI/ML, secure cloud, digital transformation, and advanced intelligence capabilities, to the largest defense, health, and international development federal organizations.
Security Engineer / Network Engineer (DoD | AWS GovCloud) CredenceSecurity Engineer / Network Engineer (DoD | AWS GovCloud)McLean, VA$120,000–$150,000Credence has an immediate opening for a highly skilled Security Engineer / Network Engineer to support and secure a mission-critical AWS GovCloud environment within a DoD-aligned ecosystem. Our AI, cloud, cyber, and modernization solutions save agencies thousands of hours, safeguard national security, and strengthen health and humanitarian missions worldwide.
Senior VOIP Engineer ValidaTek IncSenior VOIP EngineerVAThis role serves as the technical lead for Cisco Unified Communications Manager (CUCM) environments, supporting VoIP infrastructure, collaboration platforms, and voice services across multiple enclaves and locations while ensuring availability, security, and performance. Our commitment to quality and performance optimization is the reason why our IT Service Projects and New Development Projects have been appraised at CMMI Maturity Level 5, positioning us as one of a handful of elite companies to receive the highest form of third-party validation.
Senior Systems Engineer Delinea IncSenior Systems EngineerWashington, DCThis position is based in the Reston, VA / Washington, D.C. metropolitan area and operates in a hybrid model out of the DC office, combining remote work with regular presence in local data centers and colocation facilities, with periodic travel required for infrastructure projects and participation in after-hours maintenance windows and critical incident response as needed. What You'll Do: Conduct ongoing monitoring of data center infrastructure to ensure the integrity, performance, and availability of hardware, server resources, network systems, and critical services; proactively review system and network activity to identify and address potential issues.
Cyber Security Engineering Specialist IV/ Firewall Engineer CACICyber Security Engineering Specialist IV/ Firewall EngineerSpringfield, VirginiaTeam CACI on our TCS Program has an exciting and challenging opportunity available for a Network Security Engineer supporting an Intelligence Community customer’s wide-area (WAN), local-area (LAN) and campus-area (CAN) networks across multiple security domains. 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.
Data Center Chief Engineer, Night Shift Amazon.com IncData Center Chief Engineer, Night ShiftSterling, VAOversee operation and management of routine and emergency services on a variety of critical systems such as switchgear, generators, UPS systems, power distribution equipment, chillers, cooling towers, computer room air handlers, building monitoring systems, etc. Regularly walk, use hands and fingers, handle or feel, reach with hands and arms, stoop, kneel, crouch or crawl, climb stairs, twist, bend, work above shoulders, grasp, carry, push and pull objects into position.
Sr. Regional Environmental Engineer, AWS Environmental Amazon.com IncSr. Regional Environmental Engineer, AWS EnvironmentalHerndon, VARepresent Amazon at appropriate levels with governmental agencies and throughout the company; Prepare and submit time-critical reports to various governmental agencies; Identify improvement opportunities and partner with internal teams on programmatic issues that impact construction/operations handover phases. We pioneered cloud computing and never stopped innovating - that's why customers from the most successful startups to Global 500 companies trust our robust suite of products and services to power their businesses.