24 infrastructure security engineer jobs at 18 companies in O'Fallon, IL

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Infrastructure Security Engineer, Public Sector
New York City or St. Louis or Washington
$149k-$342k/yr OnsiteFull Time
Scale AI
Scale AI: Provides data and infrastructure for training artificial intelligence models.
Top Secret clearance required. Experience securing large cloud environments, infrastructure-as-code review, Kubernetes and cloud-native services, scripting (NodeJS/TypeScript/Python), and security tooling.
AWS, Azure, GCP, NodeJS, TypeScript, Python, Kubernetes, Terraform, CloudFormation, SAST, DAST, JavaScript
1mo
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Senior Infrastructure Security Architect
St. Louis or Tempe or United States
HybridFull Time
Edward Jones
Edward Jones: Offers investment management and financial planning through local branches.
10+ YOEBachelor's in CS/Engineering or equivalent, 10+ years in infrastructure security architecture, expertise in encryption, key/certificate management, cloud and hybrid security, security frameworks, tooling, and strong communication skills.
Azure, OCI, AWS, GCP, EDR/XDR, SIEM, NIST, CIS, ISO 27001
1mo
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Infrastructure Engineer
St. Louis, Missouri, United States
OnsiteFull Time
Lutheran Church Extension Fund
Lutheran Church Extension Fund: Provides financial solutions and investment services for church ministries.
5+ YOEBachelor's in CS/IT or equivalent, 5+ years infrastructure/systems administration experience; expertise with Windows Server, Active Directory, virtualization, cloud, backups/DR, scripting, networking (DNS/DHCP/TCP/IP), and security controls.
Windows Server, Active Directory, DNS, DHCP, TCP/IP
1mo
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Virtru Security Engineer
Scott Air Force Base, Illinois, United States
$99k-$225k/yr HybridFull Time
Booz Allen Hamilton
Booz Allen HamiltonNYSE: BAH: Consulting and technology services for government and commercial clients
Experience designing and deploying data security solutions (Virtru), data-centric security models, Kubernetes/Docker, infrastructure-as-code (Terraform/Ansible), security automation for CI/CD, and security monitoring; Secret clearance and HS diploma/GED required.
Virtru, Terraform, Ansible, Kubernetes, Docker, Go, Python, Node.js, BigID, Forcepoint, Ping, SailPoint, CNAP, SIEM, CSPM, CWPP
4d
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Security Engineer- Enterprise Platforms
Mt Sterling or Chesterfield
$87k-$131k/yr OnsiteFull Time
Dot Foods
Dot Foods: Redistributes food products from manufacturers to distributors nationwide.
Bachelor's degree or equivalent experience in related field; experience in cybersecurity, infrastructure, or network engineering; knowledge of enterprise security platforms; strong troubleshooting, communication, and analytical skills.
1mo
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Endpoint Security Engineer III
Springfield or St. Louis
$75k-$158k/yr OnsiteFull Time
CACI
CACINYSE: CACI: Provides information technology and professional services to government clients.
5+ YOETS/SCI clearance required, bachelor's in engineering/computer science preferred (experience may substitute), 5+ years cyber security experience, DoD 8570 IAT Level II, CSSP Infrastructure Support certification (within 6 months), Carbon Black EDR, Linux, incident response, enterprise networks.
Carbon Black Endpoint Detection and Response (EDR), Linux, Windows Enterprise Active Directory (AD), VMware, AWS
2w
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Senior Manager - Blockchain Security & Digital Asset Infrastructure
New York or Charlotte or Chicago or St. Louis or Boston
$150k-$344k/yr HybridFull Time
EY
EY: Global firm providing audit, tax, and professional consulting services.
8+ YOEBachelor's in a technical field and 8+ years in cybersecurity, systems engineering, blockchain security or cryptographic research; hands-on custody and key-management experience; expertise in blockchain protocols, cryptography, incident response, and AI-enabled threat analysis.
Multi-Party Computation (MPC), Hardware Security Modules (HSMs), Bitcoin, Ethereum, Lightning Network, EVM, SHA-256, Keccak, ECDSA, Schnorr, Linux, Large Language Models (LLMs)
4w
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Principal Engineer - Systems
St. Louis, Missouri, United States
RemoteFull Time
Enterprise Mobility
Enterprise Mobility: Provider of vehicle rental and diverse mobility solutions.
11+ YOE11+ years software and infrastructure engineering experience, expertise in cloud (Azure), security (MFA, SSO, MIM, OTP), distributed systems, and strong stakeholder communication and mentoring skills.
Microsoft Active Directory, Microsoft Entra, AppSec, MFA, SSO, MIM, OTP, Azure
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Engineer, Cloud - Archimedes
St. Louis or Brentwood or Alaska or Arizona or Arkansas or California or Connecticut or Delaware or Hawaii or Idaho or Louisiana or Maine or Massachusetts or Michigan or Mississippi or Montana or Nebraska or Nevada or New Mexico or New York or North Carolina or North Dakota or Oregon or Rhode Island or South Carolina or South Dakota or Texas or Utah or Vermont or Washington or West Virginia or Wyoming or United States
HybridFull Time
Navitus Health Solutions
Navitus Health Solutions: Transparent pharmacy benefit management and specialty pharmacy provider.
5+ YOEDesigning and operating secure, scalable Azure environments; 5+ years cloud infrastructure experience; IaC with Terraform/Bicep/ARM; scripting with PowerShell/Python/Azure CLI; observability and compliance (HIPAA, SOC 2, ISO 27001).
Azure Data Lake Storage Gen2, Azure Databricks, Azure Machine Learning, Azure OpenAI, Azure App Services, AKS, Azure SQL, Terraform, Bicep, ARM templates, Azure DevOps Pipelines, Azure CLI, PowerShell, Python, Azure Policy, Azure Monitor, Log Analytics, Application Insights, Network Watcher, Kusto Query Language (KQL), Microsoft Entra ID, Entra B2B, Entra B2C, Microsoft Intune, Azure Key Vault, Microsoft Defender for Cloud, Microsoft Sentinel, Azure Front Door, Application Gateway, ExpressRoute, VPN Gateway, Azure Firewall, Unity Catalog, Delta Lake, Private Endpoints, Managed Identities, Databricks ML, MLflow, Azure Functions, Azure Repos, GitHub Actions, Git, Jira Service Management, Azure Cost Management, Azure Blueprints
3mo
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Cloud Platform Engineer - St. Louis, MO (Hybrid)
St. Louis, Missouri, United States
HybridFull Time
Oakwood Systems Group
Oakwood Systems Group: Provides managed IT services and Microsoft cloud consulting.
6+ YOE6–9 years in cloud infrastructure/DevOps/platform engineering; strong Azure experience; CI/CD, IaC; MSP/NOC/SOC coordination; cloud security, monitoring, incident response; collaborative cross-team work.
Azure, CI/CD, Infrastructure as Code, Terraform, Bicep, ARM, Monitoring tools, Security tooling
1mo
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Cloud Engineer
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.
Manage and secure DoD AWS cloud environments (IL-4+), deploy applications, maintain CI/CD and infrastructure automation, understand RMF/ATO processes; Secret clearance and HS diploma/GED required; certifications preferred.
AWS, Azure, AKS, Docker, Kubernetes, CI/CD
3w
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DevOps Engineer
Springfield or St. Louis
$145k-$165k/yr OnsiteFull Time
GRVTY
GRVTY: Develops defense technology, cyber, and intelligence software solutions.
8+ YOEUS citizen with active TS/SCI and ability to obtain CI Polygraph, degree plus 8+ years (or equivalent experience), experience with containers and cloud/on-prem infrastructure, GitLab CI/CD, Python/Bash/Shell, networking and security.
Kubernetes, Docker, OpenShift, GitLab, Python, Bash, Shell, Helm, Jira, Confluence
3w
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Senior DevOps Engineer
St. Louis, Missouri, United States
$165k-$175k/yr OnsiteFull Time
D2 Consulting
D2 Consulting: Provides IT engineering and cybersecurity services to federal agencies.
ACTIVE TS/SCI clearance required; hands-on experience with Kubernetes/Docker/OpenShift, CI/CD (GitLab), Python and Bash scripting, on-prem and cloud infrastructure, networking fundamentals, and security/compliance practices.
Kubernetes, Docker, OpenShift, GitLab, Helm, Python, Bash, Shell, IAM, S3, SSH, VPN, Jira, Confluence
1w
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Lead Network Engineer
Scott AFB, Illinois, United States
OnsiteFull Time
Apogee Engineering
Apogee Engineering: Provides specialized engineering and technical services to defense agencies.
8+ YOEUS citizen with TS/SCI, DoDD 8140.03, Network+ and CCNA, Bachelor's degree, 8+ years experience (5+ in DoD), experience with SolarWinds; ability to configure, monitor, and secure LAN/WAN infrastructure.
ServiceNow, SolarWinds, Splunk
3w
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Junior DevOps Engineer
Springfield or St. Louis
$104k-$119k/yr OnsiteFull Time
teKnoluxion
teKnoluxion: Providing technical engineering and cloud services to the intelligence community.
2+ YOEActive TS (SCI eligibility) clearance and CI poly eligibility, 2+ years experience, Kubernetes/Docker/OpenShift, GitLab/CI/CD, Python/Bash/Shell, infrastructure automation, monitoring, and security practices.
Kubernetes, Docker, OpenShift, GitLab, Python, Bash, Shell, Helm, Jira, Confluence
4w
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DevOps Engineer, Sr
Springfield or St. Louis
$139k-$187k/yr OnsiteFull Time
GDIT
GDITNYSE: GD: Delivers IT and mission services to government agencies.
8+ YOETS/SCI clearance and US citizenship required, 8+ years experience, expertise with Kubernetes/Docker/OpenShift, GitLab, Python, Bash/Shell scripting, CI/CD, on-prem and cloud infrastructure, networking and security, and strong troubleshooting and communication skills.
Bash, GitLab, Shell Scripting, Kubernetes, Docker, OpenShift, Python, Helm, Jira, Confluence
3w
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AWS Cloud Operations Engineer
Lake Saint Louis, Missouri, United States
$100k-$120k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
10+ YOE10+ years in infrastructure/cloud operations with 5+ years AWS; experience with AWS services, IaC (CloudFormation,Terraform), DevOps tools, scripting (Python/Bash), incident management, and cloud security.
AWS, Azure, EC2, IAM, VPC, S3, CloudFormation, CloudWatch, EKS, ECS, Route 53, NLB, ALB, Chef, Jenkins, Terraform, Git, Qualys, CrowdStrike, Splunk, New Relic, Prisma, Python, Bash, Linux, Windows Server
1mo
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Manager, Platform Engineering - Big Data Engineering
O'Fallon, Missouri, United States
$122k-$207k/yr OnsiteFull Time
Mastercard
MastercardNYSE: MA: Global payment processing and financial technology service provider.
Leadership of platform/cloud engineering teams with big data platform experience (Hadoop/Cloudera), distributed systems and microservices, proficiency in Python/Java/Go, CI/CD and infrastructure as code, and security integration.
Hadoop, Cloudera, Kubernetes, Python, Java, Go, CI/CD
1mo
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Chief Technology Advisor - Global Service Provider
Denver or Atlanta or St. Louis or Philadelphia or Dallas
$175k-$225k/yr OnsiteFull Time
World Wide Technology
World Wide Technology: Global technology solutions provider and systems integrator.
Senior technical advisor for GSP AI solutions with deep expertise in AI infrastructure, foundation models, GenAI, data platforms, security, and executive-facing solution guidance.
NVIDIA H100, NVIDIA H200, NVIDIA B200, NVIDIA GB200, AMD MI300, AWS Trainium, Google TPU, InfiniBand, RoCE, NVLink, NVSwitch, Ethernet, Weka, VAST, Lustre, DDN, vLLM, TensorRT-LLM, SGLang, Triton Inference Server, MLOps, LLMOps