23 firewall engineer jobs at 17 companies in Ballwin, MO

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Lead Firewall Engineer
Arnold, Missouri, United States
$90k-$190k/yr OnsiteFull Time
CACI
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
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Lead Firewall Engineer
Arnold, Missouri, United States
$90k-$190k/yr OnsiteFull Time
CACI International
CACI InternationalNYSE: CACI: Provides information technology and engineering services for government agencies.
8+ YOEActive TS/SCI clearance, 8+ yrs technical network security experience (5+ yrs enterprise networks), expertise with F5/Palo Alto/Juniper, DoD architecture knowledge, DoD IAT Level II/CSSP certs, CI polygraph eligibility.
F5, APM, AFM, SSLO, Juniper SRX, Palo Alto, WildFire, GlobalProtect, Threat Prevention, URL Filtering, OCSP, DoD PKI, Kerberos, LDAP, Active Directory, SAML, OAuth, TLS/SSL, DoD Architecture Framework
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Power Systems Automation Engineer
Lakewood or Fairview Heights or Boerne
$84k-$144k/yr OnsiteFull Time
Schweitzer Engineering Laboratories
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.
SCADA, DNP3, Modbus, IEC 61850, Ethernet/IP, OPC UA, RTUs, RTACs, IEDs, SEL Relays, PLC, HMI, Serial Communications, Ethernet, Firewalls, Security Gateways, Terminal Servers, Cellular Routers, Managed Switches, SDN, IEC 61131-3, Structured Text, Wireshark
3mo
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Implementations/Activations Network Engineer II
Scott AFB, Illinois, United States
$70k-$76k/yr OnsiteFull Time
I2X Technologies
I2X Technologies: Providing engineering and IT services to federal government agencies.
2+ YOESecret clearance; BS with 2-4 years or MS with <2; on-site at Scott AFB IL; US citizenship; DoD/DISA knowledge; network engineering with BGP/ISIS, VPN, VLAN, TSOs/TSRs.
BGP, ISIS, OSPF, DHCP, DNS, TCP/IP, WAN, VPN, VLAN, VRF, Routers, Firewalls, Load Balancers
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Network Engineer
Belleville, Illinois, United States
OnsiteFull Time
Abacus Technology
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)
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Sales Engineer
St. Louis, Missouri, United States
$90k-$110k/yr HybridFull Time
Segra
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
WAN, MPLS, SD-WAN, Cloud, Firewall, UCaaS, SIP Trunking, PRI, Wi-Fi
2d
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Implementations Network Engineer II
Scott Air Force Base, Illinois, United States
OnsiteFull Time
BAE Systems
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).
Cisco, Juniper, BGP, ISIS, OSPF, DHCP, DNS, TCP/IP, WAN, VPN, VLAN, VRF, routers, load balancers, firewalls, SharePoint, DISA Storefront (DSF)
3w
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Network Engineer
Clayton or St. Louis
OnsiteFull Time
Caleres
CaleresNYSE: CAL: Designs and retails a global portfolio of footwear brands.
3+ YOE3-5 years network engineering experience; Bachelor’s in CS/IT (required); knowledge of TCP/IP, OSPF, BGP, VLANs, MPLS, VPNs, SDWAN; experience with firewalls/IDS/IPS and monitoring tools; CCIE/CCNP preferred.
TCP/IP, OSPF, BGP, VLANs, MPLS, VPNs, SDWAN, SNMP, NetFlow, Wireshark, SolarWinds, Cisco, Aruba, Silver Peak, Palo Alto
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Senior Network Engineer Consultant
St. Louis, Missouri, United States
HybridContract
Chameleon Integrated Services
Chameleon Integrated Services: Provides IT systems integration and cybersecurity for federal agencies.
8+ YOE8+ years enterprise network engineering experience with strong routing, switching, WAN, wireless, firewall, and VPN expertise; experience documenting environments, creating diagrams, assessing security risks, and producing roadmaps; strong communication skills.
Cisco, Aruba, Fortinet, Palo Alto, Juniper, Meraki
3w
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Network Engineer
Clayton, Missouri, United States
OnsiteFull Time
Caleres
CaleresNYSE: CAL: Designs and retails a global portfolio of footwear brands.
3+ YOEBachelor's in CS/IT or related; 3+ years network engineering experience; deep knowledge of TCP/IP, OSPF, BGP, VLANs, MPLS, VPNs, SDWAN; network security and monitoring (firewalls, IDS/IPS, SNMP, NetFlow, Wireshark, SolarWinds); vendor experience with Cisco, Aruba, Silver Peak, Palo Alto; CCIE/CCNP preferred.
TCP/IP, OSPF, BGP, VLANs, MPLS, VPNs, SDWAN, SNMP, NetFlow, Wireshark, SolarWinds, Cisco, Aruba, Silver Peak, Palo Alto
3d
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Senior Engineer, Managed Services
Raleigh or St. Louis
HybridFull Time
IT Solutions Consulting
IT Solutions Consulting: A national managed services provider delivering comprehensive technology solutions.
6+ YOE6+ years IT experience in an MSP or internal IT environment; Windows Server and Office 365/Exchange experience; firewall, network, virtualization, and ticketing system knowledge; strong communication and troubleshooting skills.
Cisco, Sonicwall, Palo Alto, Juniper, F5, HP, Aruba, VMware, Hyper-V, NetApp, Kaseya VSA, ConnectWise Automate, LogicMonitor, Nagios, Office 365, Microsoft Exchange, Cisco AnyConnect, Meraki, Fortinet, ConnectWise Manage
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Sr Network Engineer
St. Louis, Missouri, United States
OnsiteFull Time
KNOWiNK
KNOWiNK: Provider of digital poll book and election management software.
Expertise in networking and systems administration (routers, switches, wireless, firewalls, VPNs), server and endpoint administration, strong troubleshooting, and ability to work onsite independently; cloud, Microsoft 365, and Apple device management preferred.
Microsoft 365, Microsoft Azure, Apple Business Manager (ABM), Apple iOS, MDM, Bash, Python, VLAN, VPN
2w
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Network Engineer - Contract
St. Louis or Edwardsville
$44-$54/hr OnsiteFull Time, Contract
World Wide Technology
World Wide Technology: Global technology solutions provider and systems integrator.
5+ YOE5+ years network administration experience, bachelor's degree or equivalent, CCNA required (CCNP preferred), hands-on Cisco firewall experience, familiarity with zero trust, IDS/IPS, routing protocols, and network automation (Python/Ansible).
Cisco, BGP, EIGRP, VPC, LACP, STP, Python, Ansible, ASA, Firepower, IDS/IPS, DMVPN, IPSec, ZTNA
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Systems Engineer SME (Cloud)
O'Fallon, Illinois, United States
OnsiteFull Time
Second-61
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
3w
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Lead Systems Engineer - Data Integration
St. Louis or Brentwood or Richmond Heights or Clayton or Maplewood or United States
RemoteFull Time
Enterprise Mobility
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.
Python, Perl, BASH, KSH, JavaScript, JSON, Unix, Linux, Windows, Oracle, Microsoft SQL, MariaDB, PostgreSQL, Amazon, Azure
3w
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Data Loss Prevention Engineer, Senior
Scott Air Force Base, Illinois, United States
$99k-$225k/yr OnsiteFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Provides technology and management consulting services to diverse organizations.
Experience deploying and configuring Forcepoint/Trellix/Microsoft/Symantec DLP and web security, knowledge of DoD cybersecurity frameworks, network protocols/firewalls/proxies, Secret clearance, HS diploma/GED.
Forcepoint, Forcepoint CASB, Trellix, Microsoft, Symantec, Splunk, McAfee, Palo Alto, SIEM, SOAR, DLP
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Security Engineer II - CSIR
Saint Louis, Missouri, United States
OnsiteFull Time
Stifel
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
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Security Engineer II - CSIR
Saint Louis, Missouri, United States
OnsiteFull Time
Stifel Financial
Stifel FinancialNYSE: SF: Financial services firm providing wealth management and investment banking.
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
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Service Desk Engineer
Maryland Heights, Missouri, United States
OnsiteFull Time
GFI Digital
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
2mo
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Implementations / Activations Network Engineer II
Scott Air Force Base, Illinois, United States
$56k-$60k/yr OnsiteFull Time
Leidos
LeidosNYSE: LDOS: Provides engineering and IT solutions for government agencies.
2+ YOEActive Secret clearance; U.S. citizenship; DoD-8570 IAT Level 2 baseline; BS degree with 2-4 years or MS with <2 years experience.
BGP, OSPF, DHCP, DNS, TCP/IP, WAN, VPN, VLAN, VRF, Routers, Firewalls, Load Balancers, Configlets, TSOs, TSRs