Security Engineer Jobs in St. Louis
20 live Security Engineer roles in St. Louis, United States. Apply directly on Haystack.
Last updated 26 October 2026. Job counts refresh daily.
As of 26 October 2026, Haystack lists 20 live Security Engineer jobs in St. Louis, with 7 added in the past week. Employers hiring right now include CACI International, Inc., Freedom Technology Solutions Group and Edward Jones. 15% of these roles are remote friendly.
Top companies hiring
plus 1 more companies hiring in this category
- FT
Endpoint Security ServicesRecently posted Auto Apply
Freedom Technology Solutions Group 路 St. Louis 路 Hybrid 馃嚭馃嚫
Active DirectoryStrategic PlanningVMware+1TechnologySalary not listed - CI
Cyber Threat Intelligence Engineer IIIRecently posted
CACI International, Inc. 路 St. Louis, MO 路 Hybrid 馃嚭馃嚫
Technology$75.2k - $158.1k/yr - FT
Cybersecurity Engineer 793 Auto Apply
Freedom Technology Solutions Group 路 St. Louis 路 Hybrid 馃嚭馃嚫
ComplianceRisk AssessmentStrategic PlanningTechnologySalary not listed - FT
Firewall Engineer 792 Auto Apply
Freedom Technology Solutions Group 路 St. Louis 路 Hybrid 馃嚭馃嚫
Risk AssessmentVMwareLinux+1EngineeringSalary not listed - FT
Cybersecurity Operations Specialist 720 Auto Apply
Freedom Technology Solutions Group 路 St. Louis 路 Hybrid 馃嚭馃嚫
Case ManagementTriageTechnologySalary not listed - FT
Cyber Data Analysis Engineer 718 Auto Apply
Freedom Technology Solutions Group 路 St. Louis 路 Hybrid 馃嚭馃嚫
OnboardingOpenStackAWS+10TechnologySalary not listed - EJ
Cyber Threat Intelligence Engineer IVRecently posted
Edward Jones 路 St. Louis, MO 路 On-site 馃嚭馃嚫
SQLPythonData AnalysisTechnologySalary not listed - CR
Security Operations Engineer Auto Apply
CRB 路 St. Louis, MO 路 Hybrid 馃嚭馃嚫
ConfluenceJiraIAM+2TechnologySalary not listed - CI
Endpoint Security Engineer III - Nessus
CACI International, Inc. 路 St. Louis, MO 路 Hybrid 馃嚭馃嚫
PowerShellPythonLinuxTechnology$75.2k - $158.1k/yr - CI
Cyber Hunt Engineer
CACI International, Inc. 路 St. Louis, MO 路 Hybrid 馃嚭馃嚫
Technology$75.2k - $158.1k/yr - CI
Cyber Data Analyst EngineerRecently posted
CACI International, Inc. 路 St. Louis, MO 路 Hybrid 馃嚭馃嚫
RubyGitAWS+8Technology$75.2k - $158.1k/yr - CI
Cybersecurity Engineer - Network Security Tools
CACI International, Inc. 路 St. Louis, MO 路 Hybrid 馃嚭馃嚫
OAuthSAMLActive Directory+2Technology$75.2k - $158.1k/yr - CI
Cyber Security Engineer - NSS Tools
CACI International, Inc. 路 St. Louis, MO 路 Hybrid 馃嚭馃嚫
OAuthSAMLActive Directory+2Technology$75.2k - $158.1k/yr - CI
Crypto Engineer T3
CACI International, Inc. 路 St. Louis, MO 路 Hybrid 馃嚭馃嚫
Engineering$75.2k - $158.1k/yr - CI
Information Systems Security Officer
CACI International, Inc. 路 St. Louis, MO 路 Hybrid 馃嚭馃嚫
AWSTechnology$75.2k - $158.1k/yr - EJ
Application Security Architect - AI Harness
Edward Jones 路 St. Louis, MO 路 On-site 馃嚭馃嚫
GitOWASPGitHub Actions+5TechnologySalary not listed - CP
Security Engineer Auto Apply
Check Point Software Technologies 路 St. Louis, MO 路 Remote 馃嚭馃嚫
Network AdministrationTechnologySalary not listed - NC
OT/ICS Security Architect
NR Consulting LLC 路 St. Louis, MO 路 Hybrid 馃嚭馃嚫
Zero TrustTechnologySalary not listed - SA
Cybersecurity Engineer
SAIC 路 St. Louis, MO 路 Remote 馃嚭馃嚫
TechnologySalary not listed - SA
Cybersecurity Engineer - ISSO
SAIC 路 St. Louis, MO 路 Remote 馃嚭馃嚫
AgileConfluenceJava+3TechnologySalary not listed
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Frequently asked questions
How many Security Engineer jobs in St. Louis are available?
Haystack currently lists 20 live Security Engineer jobs in St. Louis, with 7 added in the past week. Numbers refresh daily.
Which companies are hiring for Security Engineer jobs in St. Louis?
CACI International, Inc., Freedom Technology Solutions Group, Edward Jones, SAIC, CRB are actively hiring right now, alongside 2 other employers.
Are there remote Security Engineer jobs in St. Louis?
Yes. 3 of the current listings are remote friendly. Browse the remote-only view.