22 firewall engineer jobs at 16 companies in O'Fallon, IL
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Lead Firewall Engineer
Arnold, Missouri, United States
$90k-$190k/yrOnsiteFull Time
CACINYSE: CACI: Provides information technology and professional services to government clients.
8+ YOEActive TS/SCI clearance; 8+ years network security; 5+ years large-scale enterprise networks; DoD architecture familiarity; firewall/boundary team leadership; experience with F5, Palo Alto, Juniper SRX; DoD PKI/AD; TLS issues; willingness to work weekends.
F5, Palo Alto, Juniper SRX, OCSP, Active Directory, SAML, OAuth, TLS/SSL, DoD PKI, Kerberos, LDAP, STIG, SRG
Schweitzer Engineering Laboratories: Manufactures digital systems that protect and automate power grids.
3+ YOEBachelor's in Electrical Engineering or Computer Science; 3+ years in power systems automation and communication; experience with utility/industrial power systems, SCADA and protocols.
Abacus Technology: Provides professional IT and engineering services to government agencies.
5+ YOE5+ years network engineering experience, Bachelor’s degree, CCNP, Top Secret clearance, experience with routers/switches/firewalls, server administration, SNMP/VoIP, and full engineering lifecycle.
SNMP, VoIP, Time Compliance Technical Orders (TCTO)
Segra: Provider of fiber-based connectivity and managed technology solutions for businesses.
3+ YOE3-5 years in telecom or technical field; strong presentation and communication skills; knowledge of network transport, WAN, MPLS, SD-WAN, Cloud, Firewall, UCaaS, SIP Trunking, PRI, Wi-Fi; industry certifications in Route/Switch, Cybersecurity, or Data Center/Cloud
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
2+ YOEU.S. citizen with ability to obtain Top Secret clearance, active Secret preferred; BS degree with 2+ years network experience; DoD-8570 IAT Level 2 (Security+ CE); proficiency with Cisco/Juniper and routing protocols (BGP, ISIS).
Abacus Technology: Provides IT and engineering services for government and defense.
5+ YOE5+ years network engineering experience, CCNP certification, bachelor's degree in a related field, Top Secret clearance, strong router/switch/firewall and security experience, server/VoIP and SNMP familiarity.
Vibrint: Provides mission-critical systems and data analysis for national security.
TS/SCI with CI poly required; design, implement, and maintain networks; install/configure routers, switches, firewalls, VPN gateways, DNS/DHCP; monitor performance and security; troubleshoot outages; integrate with cloud and virtualized environments.
GCyber: Provides specialized cybersecurity and IT modernization for government agencies.
8+ YOEActive DoD Top Secret clearance, CCNP and DoD 8140/8570 IAT Level II, BA/BS, 8+ years network engineering experience, expertise in routing/switching/firewall/VPN/IPv4/IPv6, DISA STIGs, and scripting for automation.
Second-61: Provides managed technology, cybersecurity, and accounting services to businesses.
10+ YOE10+ years experience designing and deploying secure, scalable commercial cloud solutions for DoD environments; proficiency with RHEL, AWS networking, BGP, Palo Alto firewalls, DevSecOps tools (Git, Jenkins, Groovy, YAML); active DoD Secret clearance and US citizenship required.
Red Hat Enterprise Linux, Palo Alto, F5, F5 Big-IP, Panorama, Big IQ, Git, Jenkins, Groovy, YAML, AWS, WAF, GuardDuty, IAM, Security Groups, EC2, S3, Systems Manager, CloudFormation, CloudTrail, Lambda, AWS Workspaces, Route 53, Transit Gateway, VPCs, VPNs, BGP, Juniper, Cisco
Fort Meade or Pensacola or Mechanicsburg or Oklahoma City or San Antonio or Ford Island or Scott AFB or Hill AFB
$99k-$225k/yrOnsiteFull Time
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
5+ YOE5+ years network security experience, 3+ years firewall and enterprise security design, Palo Alto/Cisco/Juniper and Wireshark experience, Secret clearance, HS diploma or GED, ability to obtain DoD 8570 IAT Level II within 3 months.
St. Louis or Brentwood or Richmond Heights or Clayton or Maplewood or United States
RemoteFull Time
Enterprise Mobility: Provider of vehicle rental and diverse mobility solutions.
5+ YOEBachelor's in CS/CIS/MIS, 5+ years scripting experience (Python, Perl, BASH, KSH, JavaScript), JSON expertise, networking/firewall and Unix/Linux/Windows knowledge, full lifecycle development, on-call availability, U.S. work authorization and CST availability.
2+ YOEBachelor's in CS/IS/cybersecurity or equivalent experience, 2+ years in IT/security, incident identification and response, troubleshooting, familiarity with security tooling and SIEM/UEBA, strong communication and multitasking.
Microsoft 365, Microsoft Excel, Microsoft Outlook, SIEM/UEBA, firewalls, intrusion detection systems, endpoint detect response, anti-virus, anti-malware, authentication systems, ticketing systems, monitoring tools
StifelNYSE: SF: Global wealth management and investment banking firm.
2+ YOEBachelor's degree or equivalent experience, 2+ years IT/infosec experience, proficiency with Microsoft 365, SIEM/UEBA and endpoint/security systems, strong troubleshooting, incident response, and communication skills.
Microsoft 365, Microsoft Excel, Microsoft Outlook, SIEM/UEBA, ticketing systems, endpoint detect response, firewalls, intrusion detection systems, anti-virus, anti-malware, authentication systems, content filtering, monitoring tools, logging
GFI Digital: Provides managed IT, print, and office equipment solutions.
3+ YOE3+ years hands-on IT support (3 years MSP) with Windows workstation/server and networking experience; strong customer service, documentation, prioritization, and problem-solving skills; vendor certifications preferred.
Windows Server, Microsoft Office Suite, switches, firewalls, wireless access points
Edward Jones: Offers investment management and financial planning through local branches.
5+ YOE5+ years in cybersecurity or application/API security; hands-on experience with API, cloud, and vulnerability tools; scripting (shell, Perl, Python) and Azure familiarity; bachelor\u0002s preferred.