57 siem engineer jobs at 22 companies in O'Fallon, MO
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Security Engineer, Public Sector
New York City or St. Louis or Washington
$164k-$342k/yr OnsiteFull Time
5+ YOETop Secret clearance required; 5+ years in detection engineering/incident response/security ops preferred; production-grade coding in Python/NodeJS/TypeScript; experience with detection pipelines, SIEM/EDR/SOAR, cloud security telemetry, and digital forensics.
NodeJS, TypeScript, Python, Kubernetes, SIEM, EDR, SOAR, AWS, GCP, Azure
1w
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SR CYBERSECURITY ENGINEER
Smyrna or St. Louis
OnsiteFull Time
Senior-level cybersecurity engineering experience supporting enterprise IT and OT security, SIEM/EDR/identity platforms, incident response, vulnerability assessment, and security architecture.
SIEM, MDR, XDR, Endpoint Detection & Response (EDR), MFA, PIM, PAM, Azure, Microsoft 365, SOC, ICS, SCADA
2mo
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Security Engineer
St. Louis or Kansas City or Israel
$80k-$150k/yr HybridFull Time
2+ YOE2+ years cybersecurity/SOC experience, hands-on AWS knowledge, AWS entry-level certification (e.g., Cloud Practitioner), Python proficiency, SIEM and log-pipeline experience, and detection engineering skills.
AWS, Python, SIEM, Sigma, SPL, KQL, SQL, YARA, Terraform, CloudFormation, CDK, LLMs
1w
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SR CYBERSECURITY ENGINEER
Smyrna or St. Louis
OnsiteFull Time
Bachelor's degree or equivalent experience; senior-level cybersecurity engineering with hands-on SIEM/EDR/identity/cloud and OT support; incident response, threat detection, and security architecture experience.
SIEM, MDR, XDR, EDR, MFA, PIM, PAM, Azure, Microsoft 365, ICS/SCADA
1mo
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Solutions Engineer
Utah or Colorado or Santa Clara or St. Louis or Bengaluru or London or Paris or Melbourne or Taipei or Tokyo
$178k-$281k/yr FieldFull Time
7+ YOE7+ years as a solutions/system engineer; hands-on with Linux/macOS/Windows, cloud (AWS/Azure/GCP), networking/security tech (NGFW, VPN, DLP, SIEM), MDM/MAM, AD/ADFS, scripting (Python/REST API), and strong executive presentation skills.
Linux, macOS, Windows, MDM/MAM, Android, iOS, HSM, Web Proxy, NGFW, Security Gateways, VPN, SAML/SSO, DLP, regex, Cloud Identity Providers, SCIM, SIEM, SOAR, EDR, SD-WAN, Microsoft Active Directory, ADFS, Microsoft Azure AD, AWS, Azure, GCP, Python, REST API, Bluecoat, Symantec, McAfee, Checkpoint, Cisco, Juniper
1mo
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Grid Solutions Engineer
St. Louis, Missouri, United States
$84k-$204k/yr HybridFull Time
3+ YOEBachelor's required; 3+ years (engineer) / 5+ (senior) / 7+ (lead) relevant experience. Experience with electric distribution systems, ADMS, SCADA, GIS, software development, relational databases, and server/network infrastructure; hybrid work and off-hours support required.
Distributed Energy Management System (DERMS), Linux, Windows Server, Oracle, SQL Server, Rancher Kubernetes Engine, Palo Alto Firewalls, MuleSoft, Splunk SIEM, Dynatrace Application Monitoring, ERSI, SCADA, Advanced Distribution Management System, Outage Analysis System
1mo
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Sales Engineer - Mid-West US (Minnesota)
Minnesota or Wisconsin or St. Louis
RemoteFull Time
3+ YOE3+ years in sales/solutions engineering for cybersecurity; strong security operations knowledge; hands-on with APIs, JSON, YAML, jq; experience with SIEM, SOAR, EDR, IAM, cloud services; demo and POC execution skills.
APIs, JSON, YAML, jq, SIEM, SOAR, EDR, IAM, GRC, AWS, Azure, GCP, Blink UI
1w
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Cyber Data Analysis Engineer
St. Louis, Missouri, United States
OnsiteFull Time
5+ YOETS/SCI and polygraph required; Bachelor’s in a technical field; 5+ years systems-engineering experience; IAT II and obtain CSSP Infrastructure Support within 120 days; advanced Linux, networking, virtualization, SIEM, and scripting skills.
SIEM, Elastic, Splunk, ArcSight, Cribl, Python, Bash, Powershell, Linux, VMware ESXi, Citrix XenServer, Microsoft Hyper-V, AWS, Google, Rackspace, OpenStack, IPAM, DNS, DHCP
1mo
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Cybersecurity Solutions Engineer - Threat Vulnerability Engineering
Arizona or Tempe or Missouri or St. Louis or United States
HybridFull Time
7+ YOEApproximately 7 years security/platform engineering experience; Bachelor's in related field or equivalent; hands-on experience with SOAR, SIEM, EDR, DAM, NDR, cloud (AWS/Azure/GCP), IaC, CI/CD, and scripting (Python, PowerShell, Bash).
SOAR, SIEM, EDR, DAM, NDR, vulnerability tools, AWS, Azure, GCP, Infrastructure as Code (IaC), CI/CD, APIs, Python, PowerShell, Bash
3w
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Cyber Data Analysis Engineer 718
St. Louis or Springfield
OnsiteFull Time
5+ YOE5+ years systems engineering experience; IAT II required and must obtain CSSP Infrastructure Support within 120 days; advanced Linux; networking, hypervisor, and SIEM experience; scripting with Python/Bash; strong problem-solving and communication.
Linux, Windows, IPAM, DNS, DHCP, VMware ESXi, Citrix XenServer, Microsoft Hyper-V, Elastic, Splunk, ArcSight, Cribl, Python, Bash, AWS, Google, Rackspace, OpenStack, SIEM
1w
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Staff Information Security Engineer
Lubbock or Roanoke or Charlottesville or Columbia or Dallas or Raleigh or Waco or Albuquerque or Charleston or Kansas City or St. Louis or Little Rock or Charlotte or Waynesboro or Knoxville or Charleston or Cedar Rapids or Lincoln
$116k-$140k/yr HybridFull Time
10+ YOE10+ years experience in information security, strong networking and OS knowledge, scripting (Python or PowerShell), SIEM and cloud security familiarity, incident response and compliance experience.
Python, PowerShell, Splunk, Splunk ES, SIEM, Terraform, Ansible, git, AWS, Microsoft Azure, Office 365, BurpSuite, Entra, Intune, DLP, EDR, MDR, XDR, PKI, SSL/TLS
2w
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Senior Deployment Engineer, AppGate ZTNA (Federal)
Washington or Scott Air Force Base or Gunter Air Force Base or Kirtland Air Force Base or Maryland or Virginia
$177k-$192k/yr RemoteFull Time
8+ YOE8+ years delivering networking/security/platform solutions, Linux administration, scripting (Bash, PowerShell, JavaScript), REST API integration, identity systems, public cloud and virtualization experience, STIG/SCAP hardening, and federal environment support.
AppGate ZTNA, Linux, Bash, PowerShell, JavaScript, REST APIs, Active Directory, DNS, PKI, SAML, OIDC, RADIUS, LDAP, AWS, Azure, GCP, VMware vSphere, Microsoft Hyper-V, Terraform, Ansible, SIEM, SOAR, NGFWs, STIG, SCAP
2d
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Principal Information Security Engineer
St Louis, Missouri, United States
$130k-$160k/yr HybridFull Time
7+ YOEBachelor's or equivalent experience,7+ years information security experience,Security+ required; CISSP/CISM/GIAC preferred; experience with network security,IAM,endpoint security,vulnerability management,and SIEM; strong communication and analytical skills.
SIEM, IAM
3w
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Security Engineer
Kansas City or Atlanta or Clayton or New York or Los Angeles or Birmingham or Boston or Chattanooga or Charleston or Dallas or Denver or Edwardsville or Fort Lauderdale or Fort Worth or Houston or Jefferson City or Miami or Nashville or Park City or Philadelphia or Phoenix or Raleigh or Seattle or San Francisco or Salt Lake City or Wilmington or Washington
$120k-$150k/yr RemoteFull Time
2+ YOE2-4 years security engineering experience in on-premises environments, Bachelor's in CS/CE/IS or equivalent, experience with metrics/events/logging, detection engineering, scripting (Python, PowerShell), Microsoft Active Directory and Azure.
Splunk, Microsoft Active Directory, Azure, SIEM, Python, PowerShell, Microsoft Teams, Zoom, MITRE ATT&CK Framework, NIST Cyber Security Framework, CIS Controls
3mo
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Advanced Cybersecurity Analytics Engineer III
St. Louis, Missouri, United States
$75k-$158k/yr OnsiteFull Time
8+ YOEUS citizen with active TS/SCI, 8+ years cyber analytics experience, DoD 8140/8570 IAT Level III and CSSP Analyst compliant certification, SIEM/data mining and signature development experience, network/protocol analysis, regex; scripting and cloud familiarity desired.
SIEM, Python, Bash, PowerShell, protocol analyzer, hex editor, regular expressions
3mo
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Advanced Cybersecurity Analytics Engineer III
St. Louis, Missouri, United States
$75k-$158k/yr OnsiteFull Time
8+ YOEUS citizen with TS/SCI; 8+ years advanced cyber security analytics; DoD 8140.01/DoD 8570.01-M IAT Level III and CSSP Analyst; experience with data mining/queries in a SIEM; signature development and tuning; network protocol analysis; regex proficiency.
SIEM, Python, Bash, PowerShell, Regex
1mo
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Security Engineer II - CSIR
Saint Louis, Missouri, United States
OnsiteFull Time
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
1mo
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Data Loss Prevention Engineer
Scott Air Force Base, Illinois, United States
$99k-$225k/yr HybridFull Time
Experienced Forcepoint/DLP engineer with cybersecurity engineering/admin background, endpoint DLP deployment/configuration experience (Forcepoint, Trellix, Microsoft, Symantec), DoD compliance knowledge, network/security protocol knowledge, Secret clearance, HS diploma or GED.
Forcepoint, Forcepoint Web, Forcepoint Email, Forcepoint CASB, Data Loss Prevention (DLP), Trellix, Microsoft, Symantec, Splunk, McAfee, Palo Alto, SIEM, SOAR
2mo
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Security Engineer
Clayton, Missouri, United States
OnsiteFull Time
3+ YOEBachelor's in Information Systems or 3+ years IT Security; or 5+ years in IT Security. Strong collaboration and communication skills. Hands-on security experience.
Next-gen firewall, Endpoint security, Security Information and Event Management (SIEM), Vulnerability scanners, Certificate management
4w
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Security Engineer
Bridgeton, Missouri, United States
OnsiteFull Time
7+ YOE7+ years IT experience with 3+ years in security; experience with Microsoft Office 365, Azure, Active Directory, PowerShell; strong networking, incident response, forensics, and communication skills.
Data Loss Prevention (DLP), SIEM, UEBA, Microsoft Office 365, Azure, Active Directory, PowerShell, Regular Expressions
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