85 firewall engineer jobs at 61 companies in Leonardtown, MD
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Firewall Engineer
Arlington, Virginia, United States
$115k-$125k/yr OnsiteFull Time
8+ YOEActive TS/SCI required, Bachelor's and 8+ years relevant experience; 5+ years Palo Alto/Cisco firewall engineering, 8570 IAT Level II certs (e.g., CCNA Security, CySA+, Security+), EM/ops experience in cloud and virtualized environments.
Panorama, Palo Alto, Cisco, AWS, IPSec
1mo
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Firewall Engineer
Alexandria, Virginia, United States
OnsiteFull Time
8+ YOE8+ years relevant experience, 5+ years Palo Alto and Cisco firewall engineering, ability to obtain TS/SCI and CI polygraph, 8570 IAT Level II certification (e.g., Security+ CE, CySA+, CCNA Security), experience with DoD STIGs/DISA compliance.
Palo Alto, Panorama, Cisco, AWS, IPSec
1d
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Senior Firewall Engineer
Springfield or St. Louis
$75k-$158k/yr OnsiteFull Time
5+ YOEActive TS/SCI, bachelor's degree or equivalent experience, 5+ years of network security experience, IAT Level II certification, and experience with firewalls, routers, IDS, Unix, RHEL, Windows AD, and VMware.
Palo Alto, Juniper, Cisco, FireEye, F5 Load Balancer, Cisco FTD, Unix, RHEL, Windows Enterprise AD, VMware
1d
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Senior Firewall Engineer
Springfield or St. Louis
$75k-$158k/yr OnsiteFull Time
5+ YOEBA/BS in a related field or equivalent experience, 5+ years in enterprise network security, active TS/SCI, IAT Level II certification, CSSP Infrastructure Support certification, and firewall, routing, IDS, Unix, Windows, and VMware experience.
Palo Alto, Juniper, Cisco, FireEye, F5, Cisco FTD, Unix, RHEL, Windows Enterprise AD, VMware, WAN, LAN, CAN, IDS
1w
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Senior Cybersecurity Firewall Engineer
Washington, District of Columbia, United States
OnsiteFull Time
7+ YOE7+ years administering enterprise firewalls, deep knowledge of TCP/IP, VPNs, segmentation, Zero Trust, compliance (NIST/DISA), and ability to obtain/maintain Secret clearance.
Palo Alto, Cisco Firepower, ASA, Fortinet FortiGate, Check Point, Juniper SRX, NIST 800-53, DISA STIGs, IDS/IPS, WAF, Splunk, Microsoft Sentinel, QRadar, PowerShell, Python, Ansible, REST APIs
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Lead Firewall Engineer
Springfield, Virginia, United States
OnsiteFull Time
8+ YOETS/SCI required; BS or MS in CS/Cyber/Network field; 8+ years network security experience, 5+ years enterprise/global networks; DoD certification compliance; ability to obtain CSSP.
F5, Juniper SRX, Palo Alto, APM, AFM, SSLO, Threat Prevention, Wildfire, URL Filtering, Global Protect, Online Certificate Status Protocol (OCSP), Kerberos, LDAP, Active Directory, SAML, OAuth, TLS/SSL
1mo
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Senior Firewall Engineer (Palo Alto SME)
Arlington, Virginia, United States
OnsiteFull Time
8+ YOEActive TS/SCI clearance, DoD 8570 IAT Level II (e.g., Security+), 8+ years IT experience, Palo Alto firewall SME, Windows Server and AD expertise, PowerShell scripting.
Palo Alto, Windows Server, Active Directory, DNS, Group Policy, Linux/Unix, PowerShell, DISA STIGs, Risk Management Framework (RMF)
5d
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Firewall / Security Appliance Engineer
Washington, District of Columbia, United States
OnsiteFull Time
7+ YOERequires 7+ years of experience, a bachelor's in IT or related field, Palo Alto PCNSE or F5 CTS, and Secret clearance. Security+ and CISSP are preferred; travel by land or air is 25%.
Palo Alto, F5, Unified Communications Systems
1mo
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Network Engineer Level II (Firewall)
Rosslyn, Virginia, United States
$188k/yr OnsiteFull Time
3+ YOE3+ years network engineering experience; proficiency with TCP/IP, BGP, OSPF, VLANs; experience with routers/switches/firewalls; SolarWinds or Cisco Prime familiarity; relevant certifications preferred (CCNA, CompTIA Network+, CISSP/GSEC/GYSA+).
TCP/IP, BGP, OSPF, VLANs, SolarWinds, Cisco Prime, VPNs
2mo
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Senior Network Security Engineer – Palo Alto Firewall
Washington, District of Columbia, United States
$150k-$175k/yr OnsiteFull Time
6+ YOEActive Top Secret clearance with SCI eligibility, bachelor\u0002s or equivalent, 6 years network engineering/admin experience, 3 years firewall administration, experience with Palo Alto Panorama, strong troubleshooting and documentation skills.
Palo Alto Panorama, Palo Alto networking technologies, VPNs, IDS/IPS, SIEM
3w
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Network Engineer – Firewall & Load Balancing
Ashburn or Springfield or Orlando
$104k-$166k/yr OnsiteFull Time
5+ YOEU.S. citizen able to obtain CBP Public Trust, 5+ years network engineering/security experience, hands-on with F5 BIG-IP, Palo Alto NGFW, Cisco FTD, TCP/IP and monitoring tools; experience with AWS/Azure and automation preferred.
F5 BIG-IP, Local Traffic Manager (LTM), Global Traffic Manager (GTM), iRules, Palo Alto Networks, Panorama, Cisco Firepower Threat Defense (FTD), Firepower Management Center (FMC), SolarWinds, PRTG, Splunk, Wireshark, AWS, Azure, Python, Ansible, Terraform, ServiceNow, Remedy, Palo Alto Prisma SD-WAN, Cisco Viptela
3w
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Network Engineer – Firewall & Load Balancing
Ashburn or Springfield or Orlando
$104k-$166k/yr OnsiteFull Time
5+ YOEU.S. citizen able to obtain CBP Public Trust,5+ years enterprise network/security experience with F5, Palo Alto, Cisco FTD; knowledge of TCP/IP, VPNs, VLANs, network monitoring and security controls.
F5 BIG-IP, Local Traffic Manager (LTM), Global Traffic Manager (GTM), Palo Alto Networks Next Generation Firewalls, Palo Alto Panorama, Cisco Firepower Threat Defense (FTD), Firepower Management Center (FMC), SolarWinds, PRTG, Splunk, Wireshark, Palo Alto Prisma SD-WAN, Cisco Viptela, AWS, Azure, Python, Ansible, Terraform, ServiceNow, Remedy, Cisco ASA, DISA STIGs, NIST 800-53
1mo
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Network Engineer (COC Support)
Quantico, Virginia, United States
OnsiteFull Time
Obsidian Solutions Group: Delivers technology-enabled and mission-oriented solutions to government agencies.
Experience in DoD/military network engineering, VMware, O365/SharePoint, Active Directory, router/firewall ACLs, account/access management, ability to obtain Secret clearance; CompTIA Security+ CE required.
VMware, O365, Microsoft SharePoint, Microsoft Teams, Active Directory, Remedy, ITPRAS, C2PC, JBC-P, AFATDS, GCSS-MC, GCCS-MC, MCS
2mo
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Network Engineer Senior
Washington, District Of Columbia, United States
OnsiteFull Time
7+ YOEMinimum 7 years network engineering experience; enterprise routing, switching, firewall, segmentation, VPNs, encrypted communications; experience in secure, mission-critical or classified environments.
routers, switches, firewalls, VPNs, encrypted communications, network monitoring tools
1mo
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Network Engineer, Mid (TS/SCI Clearance)
Arlington, Virginia, United States
$80k-$120k/yr OnsiteFull Time
3+ YOEActive TS/SCI clearance, US citizenship, 3+ years network engineering experience, cloud/hybrid networking, firewall and routing expertise, network virtualization, and automation; must hold at least one listed security/network certification.
SDN
2mo
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Cyber Security Engineer
Fort Belvoir, Virginia, United States
$69k-$158k/yr OnsiteFull Time
Experience as a Linux systems engineer/admin; hands-on with RHEL-8/9, virtualization, shell scripting, automation (Bash, Python, Ansible); knowledge of RHEL-10, system hardening, networking (IPv4, SSH, Firewalls); familiar with ACAS, STIG, Nessus, Docker/Podman/Kubernetes; active Secret clearance; HS diploma or GED.
RHEL, VMware, Hypervisor, KVM, Bash, Python, Ansible, ACAS, STIG, Nessus, Docker, Podman, Kubernetes
2mo
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Network Engineer (Clearance Required)
Washington or Fort Meade
$100k-$150k/yr OnsiteFull Time
10+ YOEActive TS/SCI with Full Scope Polygraph; CI investigation closed within 5 years; IAT Level III baseline; 10+ years network engineering in DoD/IC classified environments; on-site Fort Meade/DC.
Network analyzers, WAN test equipment, Network simulators, Load balancing, VPN, Firewall, IPSec, GRE tunneling, NAT
2mo
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Field Network Engineer - Maryland
Easton, Maryland, United States
FieldFull Time
1+ YOE1–4 years network engineer/administrator experience; Windows Server, Exchange, Windows, TCP/IP, DHCP, LDAP, DNS, VOIP, VPN knowledge; desktop support and network troubleshooting; firewall configuration; valid driver’s license; excellent communication skills.
Windows Server, Exchange, Windows, ConnectWise, Firewalls, TCP/IP, DHCP, LDAP, DNS, VOIP, VPN
2mo
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AI Infrastructure & Security Engineer
Alexandria, Virginia, United States
$110k-$140k/yr RemoteFull Time
3+ YOE3+ years software engineering and Azure experience, CI/CD and DevOps with Azure DevOps/GitHub, containerization, Python scripting, production AI coding agent experience, security-focused instincts, and ability to communicate across teams.
Claude, Claude Code, CLAUDE.md, Cowork, Azure, Azure Container Apps, Azure DevOps, Azure Repos, GitHub, CI/CD, npm, NuGet, Office 365, eCommerce, CRM, Python, Windows Server, Linux, DNS, TCP/IP, firewalls, VPNs, MCP
1mo
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Network Engineer (TS/Q Clearance required)
Washington or Albuquerque or Germantown or Denver
$111k-$150k/yr OnsiteFull Time
12+ YOEUS citizen with 12+ years network engineering experience; expertise with Cisco routers/switches/firewalls, routing protocols (BGP, OSPF, EIGRP), and network security; DOE Q or TS clearance required; bachelor’s degree or equivalent.
Cisco Routers, Cisco Switches, Cisco Technologies, Network Firewalls, Juniper, Palo Alto, BGP, OSPF, EIGRP, STP, RSTP, VXLAN, LACP, Microsoft DNS, Unix BIND, DISA STIGs
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