Security Engineer Jobs in Saint Louis
21 live Security Engineer roles in Saint Louis, United States. Apply directly on Haystack.
Last updated 22 October 2026. Job counts refresh daily.
As of 22 October 2026, Haystack lists 21 live Security Engineer jobs in Saint Louis, with 2 added in the past week. Employers hiring right now include CACI, Crimson Phoenix and Amyx.
Top companies hiring
plus 8 more companies hiring in this category
- AM
Information Systems Security Engineer with Security Clearance
NewAmyx
Saint Louis, MO馃嚭馃嚫HybridYesterdayTechnology - MA
Technical Surveillance Countermeasures Practitioner with Security Clearance
NewMANTECH
Saint Louis, MO馃嚭馃嚫Hybrid2 days ago - AM
Vulnerability Assessment Analyst with Security Clearance
NewAmyx Inc
Saint Louis, MO馃嚭馃嚫HybridYesterdayMicrosoft OfficeSharePoint - CP
Endpoint Security Engineer III with Security Clearance
Crimson Phoenix
Saint Louis, MO馃嚭馃嚫Hybrid4 days agoTechnology - AG
Cyber Data Analysis Engineer with Security Clearance
NewAbile Group, Inc.
Saint Louis, MO馃嚭馃嚫HybridYesterdayOpenStackAWSSplunk+8Technology - CA
Cyber Hunt Engineer with Security Clearance
NewCACI
Saint Louis, MO馃嚭馃嚫$75.2k - $158.1k/yrHybrid2 days agoLinuxTechnology - SA
Cybersecurity Engineer with Security Clearance
NewSAIC
Saint Louis, MO馃嚭馃嚫HybridYesterdayProject ManagementTechnology - DC
Senior Endpoint Security Engineer with Security Clearance
D2 Consulting
Saint Louis, MO馃嚭馃嚫Hybrid2 weeks agoVMwareTechnology - TC
Jr-Mid Level Cybersecurity Engineer (Zero-Trust) with Security Clearance
TEKsystems c/o Allegis Group
Saint Louis, MO馃嚭馃嚫On-site6 days agoAWSAzureZero TrustTechnology - CP
Information Assurance- Exercise Planning with Security Clearance
Crimson Phoenix
Saint Louis, MO馃嚭馃嚫Hybrid2 weeks agoAdministrativeGet new Security Engineer jobs in Saint Louis in your inbox
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- EJ
Application Security Architect
Edward Jones
Saint Louis, Missouri馃嚭馃嚫Hybrid5 weeks agoGCPMicroservicesAWS+4Technology - CA
Cyber Data Analyst Engineer with Security Clearance
NewCACI
Saint Louis, MO馃嚭馃嚫$75.2k - $158.1k/yrHybrid2 days agoRubyGitAWS+8Technology - CU
Senior Cyber Security Engineer with Security Clearance
NewCubic Corporation
Saint Louis, MO馃嚭馃嚫$128k - $153k/yrHybridYesterdayKubernetesTechnology - RI
Exploitation Analyst - Intermediate with Security Clearance
Rividium, Inc
Saint Louis, MO馃嚭馃嚫$140k - $150k/yrHybrid2 weeks agoAdministrative - DC
Linux SIEM System Engineer with Security Clearance
D2 Consulting
Saint Louis, MO馃嚭馃嚫$90k - $95k/yrHybrid2 weeks agoOpenStackAWSSplunk+6Technology - DT
Advanced Cyber Security Analytics Engineer with Security Clearance
D2 Technical Services
Saint Louis, MO馃嚭馃嚫$90k - $100k/yrHybrid2 weeks agoBashPowerShellPythonTechnology - MO
Zero Trust Network Access (ZTNA) Engineer, Sr. with Security Clearance
Modus21, Llc
Saint Louis, MO馃嚭馃嚫Hybrid1 month agoGCPAWSMachine Learning+5 - CA
Endpoint Security Engineer III - Nessus with Security Clearance
CACI
Saint Louis, MO馃嚭馃嚫$75.2k - $158.1k/yrHybrid2 months agoPowerShellPythonLinuxTechnology - GI
Senior Cybersecurity Specialist with Security Clearance
NewGridiron IT Solutions
Saint Louis, MO馃嚭馃嚫$150k - $160k/yrHybridYesterdayEncryptionAgileTechnology - CP
Cyber Data Analysis Engineer with Security Clearance
Crimson Phoenix
Saint Louis, MO馃嚭馃嚫Hybrid5 days agoAWSAnsibleKafkaTechnology - CA
Cyber Security Engineer - NSS Tools with Security Clearance
NewCACI
Saint Louis, MO馃嚭馃嚫$75.2k - $158.1k/yrHybrid2 days agoOAuthSAMLActive Directory+4Technology
Frequently asked questions
How many Security Engineer jobs in Saint Louis are available?
Haystack currently lists 21 live Security Engineer jobs in Saint Louis, with 2 added in the past week. Numbers refresh daily.
Which companies are hiring for Security Engineer jobs in Saint Louis?
CACI, Crimson Phoenix, Amyx, D2 Consulting, MANTECH are actively hiring right now, alongside 9 other employers.