Secret Cleared | Lead Palo Alto Firewall Engineer | MIDs (11:00pm-7:30am) ConcerasSecret Cleared | Lead Palo Alto Firewall Engineer | MIDs (11:00pm-7:30am)Beltsville, MDFull timeProgram is named "Vanguard" and is an IT consolidation consisting of the Department's servers, mainframes, network devices, network perimeter, anti-virus engineering, public key infrastructure (PKI)/biometrics/encryption, monitoring tools, telephony, mobile computing platform, virtual environment, and enclave design/security engineering. First-hand experience with supporting the monitoring and configuration of Firewall/DMZ infrastructure including Network and Application Firewall Packet Filtering technologies (StoneGate, Palo Alto, FortiGate, Azure Firewall, Cloudflare, Cisco Email Security Appliances (ESA), A10 proxy devices).
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.
NewSenior Cloud Engineer Sienna Systems CorporationSenior Cloud EngineerFalls Church, VA$122,500–$127,500 / yearThe work is the connectivity itself — Direct Connect, routing at the internet connection point, and the security architecture between the two sides — alongside Trusted Internet Connections 3.0 migration. Sienna Systems is seeking a Senior Cloud Engineer to join our U.S. Customs and Border Protection Enterprise Network Architecture & Engineering Services Support (ENAESS) team, in Ashburn, Virginia.
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.
Senior Network Engineer DHS Insider Threat Program (TS/SCI) Artech LLCSenior Network Engineer DHS Insider Threat Program (TS/SCI)Lorton, VA$90–$95 / hourClearance: Active TS-SCI required + ability to obtain Client Entry On Duty SCI . Strong Cisco LAN/WAN, Firewall & Network Security experience.
Lead Unified Comms Engineer - Federal Customer Dell, Inc.Lead Unified Comms Engineer - Federal CustomerMclean, VAFull timeThe Unified Communications Engineer supports Dell Mission Operations by engineering, sustaining, and improving voice and collaboration capabilities used for day-to-day mission execution. This role is responsible for administration, troubleshooting, integration, and lifecycle support of communications platforms and endpoints in a secure environment.
Senior Cyber Security Security Engineer - Comply-To-Connect (C2c) CACI International Inc.Senior Cyber Security Security Engineer - Comply-To-Connect (C2c)Chantilly, VA$103,800–$218,100 / 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. This role centers on engineering and sustaining Comply‑to‑Connect (C2C) capabilities that protect critical enterprise systems, enhance visibility, and enable mission-focused decision making.
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.
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.
Infrastructure Engineer NorthstratInfrastructure EngineerSterling, VA$104,000–$190,000Pay 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. Northstrat is seeking a highly skilled Infrastructure Engineer to orchestrate and execute over the air (OTA) software deployments to globally fielded systems in a potentially degraded, disconnected, intermittent, and limited (DDIL) connectivity environment.
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.
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.
Journeyman Network Administrator Strategic Operational SolutionsJourneyman Network AdministratorArlington, VAFull timeMust possess an active DoD 8570/8140 IAT Level II certification at start date, such as:CompTIA Security+Cisco CCNAMicrosoft Windows Server CertificationOther DoD-approved IAT Level II certificationExperience designing, deploying, configuring, and troubleshooting enterprise network environments. The position requires onsite support in Arlington, VA.Description of DutiesPerform troubleshooting for classified and unclassified network connectivity, including VLANs, routing, switch ports, device reachability, IPv4/IPv6 connectivity, and overall network performance.
Core/Wan Network Lead CACI International Inc.Core/Wan Network LeadSterling, VA$120,800–$265,800 / yearAs a leader in our networking team, you will be responsible for guiding and developing our workforce, spearheading problem-solving efforts for critical network issues, fostering collaboration among team members, and driving continuous improvement through staying current with industry innovations. 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.
Cloud Engineer Trusted Space, LLCCloud EngineerHerndon, VA$130,000–$200,000 / yearMonitor and optimize reliability and observability (logging, metrics, tracing) across networking, OS, containers, and cloud services; diagnose complex issues affecting performance, availability, or security in classified environments. Harden and secure systems using DevSecOps practices or OWASP frameworks; implement and troubleshoot PKI/certificates, identity integration (e.g., Active Directory/FreeIPA), security baselines, STIG-aligned patching, and compliance controls.
Cloud/Devops Engineer NorthstratCloud/Devops EngineerChantilly, VAThe ideal candidate will have a minimum of 4+ years of experience in building, deployment, release automation, or orchestration, along with expertise in supporting cloud applications and infrastructures across platforms like AWS, Microsoft Azure, or Google Cloud. 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.
Cloud/DevOps Engineer NorthstratCloud/DevOps EngineerHerndon, VA$133,120–$212,160The ideal candidate will have a minimum of 4+ years of experience in building, deployment, release automation, or orchestration, along with expertise in supporting cloud applications and infrastructures across platforms like AWS, Microsoft Azure, or Google Cloud. 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 HPC DevOps Engineer PeratonSenior HPC DevOps EngineerCollege Park, Maryland$146,000–$234,000 / yearFull timeCompute node onboarding (Bare-metal/VM) : Build and maintain an automated node bootstrap workflow that installs/configures the OS, applies security and performance baselines, enrolls nodes into the scheduler and shared storage ecosystem, validates hardware and service readiness (CPU, network, accelerator, storage mounts), and reports pass/fail results. Logging & observability : Ensure automation and operational workflows emit auditable logs to centralized analytics and integrate with metrics/alerting to enable reliable incident response, proactive detection, and safe auto-remediation.
Senior Cloud Operations Engineer, Infrastruture PegasystemsSenior Cloud Operations Engineer, InfrastrutureAlexandria, VA$102,400–$153,200 / yearFor positions requiring access to technical data subject to export control regulations such as this, Pegasystems may need to obtain export license approval from the U.S. Government and EU Authorities for certain individuals. + Exposure to networking concepts (DNS, load balancing, firewalls) as part of broader infrastructure operations AWS or GCP certification preferred CCNA/CCNP a plus, but not required .
Principal Cloud Engineer ManTechPrincipal Cloud EngineerChantilly, VAThe Principal Cloud Engineer will leverage their strong technical background and knowledge to design, implement, and manage secure cloud infrastructures in support of mission-critical operations, with a strong focus on security monitoring and threat detection. + Supporting AWS, Azure, Oracle, and GCP cloud services and infrastructure using Infrastructure as Code (IaC) tools such as Terraform or ARM templates.