37 information system security engineer jobs at 31 companies in Illinois

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Information System Security Engineer
Scott Air Force Base, Illinois, United States
OnsiteFull Time
CSCI Consulting
CSCI Consulting: IT and financial management consulting for government and commercial clients.
3+ YOEActive Secret clearance, 3+ years cybersecurity engineering experience, hands-on STIG/SCAP/Tenable experience, CEH and DoD 8140.03M DCWF Basic Tier certification required, strong documentation and communication skills.
STIG Viewer, SCAP Compliance Checker, Tenable Security Center, Tenable Cloud Security, CyberArk Privileged Access Management (PAM)
2mo
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Security Engineer
Chicago, Illinois, United States
$150k-$200k/yr OnsiteFull Time
Optiver
Optiver: Global market maker providing liquidity to financial markets.
Hands-on security engineer to protect cloud (AWS, Microsoft 365) and on-prem systems; monitor operations, perform incident response, automate security workflows, conduct risk assessments, and embed security best practices across the organization.
AWS, GuardDuty, CloudTrail, Security Hub, AWS Config, KMS, IAM, Microsoft 365, Microsoft Entra ID, Conditional Access, MFA, PIM, Microsoft Defender for Endpoint, Microsoft Defender for Identity, Microsoft Defender for O365, Microsoft Purview, DLP, Microsoft Secure Score, Python, PowerShell, Microsoft Graph API, REST, SIEM, EDR, SOAR, CASB, Git, Windows, Linux, TCP/IP, DNS, VPN, SAML, OAuth, OIDC, RBAC, PAM, SSO
1w
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System Engineer (Unix)
Scott Air Force Base, Illinois, United States
OnsiteFull Time
By Light
By Light: Provides IT and technology services to federal government agencies.
10+ YOEBachelor's degree with 10+ years experience; expertise in UNIX/Linux/RedHat, Windows Server, Azure/AWS, authentication protocols, SAN/NAS; IAT/IT and security certifications; available for on-call support.
Unix, Linux, RedHat, Solaris, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Azure, AWS, Splunk, Cisco, McAfee, LDAP, Kerberos, Active Directory, SAN, NAS, VDI
5d
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Systems Security Engineer I
Oregon or Delaware or Connecticut or Arizona or Nebraska or Missouri or Michigan or California or Colorado or Illinois or District of Columbia or Maryland or Massachusetts or New Jersey or Texas or Washington or Virginia or Alaska or San Francisco or New York City
$69k-$136k/yr RemoteFull Time
Proofpoint: Provides cybersecurity solutions for email, cloud, and data protection.
2+ YOEMinimum 2 years hands-on DLP/CASB or information security experience, strong networking and systems administration skills, bachelor\u0002s degree or equivalent preferred, excellent communication and troubleshooting.
Data Loss Prevention (DLP), Cloud Access Security Broker (CASB), Proofpoint, Symantec, McAfee/Trellix, Forcepoint, CloudSOC/Elastica, Skyhigh, Netskope, Windows Server, Unix/Linux, Microsoft SQL Server, Oracle, Regex, Python, PowerShell, Bash, Perl, Java
3w
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Principal Agentic AI Security Engineer
North Chicago, Illinois, United States
$142k-$269k/yr HybridFull Time
AbbVie
AbbVieNYSE: ABBV: Develops and sells innovative pharmaceutical and biopharmaceutical medicines.
4+ YOEExtensive cybersecurity and security-engineering experience, strong software engineering with Python, experience building agentic AI systems, and ability to develop technical standards and guidance.
Python, LangChain, AutoGen, MCP, Claude Code, Cursor, GitHub Copilot, Aider, SIEM, EDR, SOAR
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Security Operations Engineer
Chicago, Illinois, United States
$90k-$100k/yr OnsiteFull Time
Hopscotch Primary Care
Hopscotch Primary Care: Provides value-based primary care for seniors in rural areas.
4+ YOE4+ years IT systems administration or security experience; hands-on Google Workspace and Slack administration; experience building SaaS API integrations, SOC/SIEM/IPS monitoring; CompTIA A+ or Network+ preferred; degree preferred but not required.
Microsoft 365, Microsoft Azure, Microsoft Azure AD, Google Workspace, Slack, Microsoft SharePoint, Microsoft Office 365, SOC, SIEM, IPS, Managed Detection and Response (MXDR), SCIM, SSO, HRIS, SaaS APIs, Identity & Access Management (IAM)
5d
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Senior Engineer-CAMPS Inc I
Scott AFB, Illinois, United States
OnsiteFull Time
OBXtek
OBXtek: Provides IT and program management services to federal agencies.
5+ YOESenior IT solution development experience, Secret clearance required; RMF and IA knowledge; cloud and Oracle migration experience; system interoperability and security assessment skills.
Oracle, Cloud, Risk Management Framework (RMF), CMMI-Dev, ITIL, 6Sigma, PMI, ISO
1w
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Security (PKI) Engineer
Rosemont, Illinois, United States
$90k-$110k/yr OnsiteFull Time
Tata Consultancy Services
Tata Consultancy ServicesNational Stock Exchange of India: TCS: Global provider of IT services, consulting, and business solutions.
6+ YOEDesign and deploy enterprise PKI; administer Venafi, Luna HSM and certificate platforms; monitor/configure systems; support Windows Server/VMware/Unix/Linux; participate in on-call rotation.
Microsoft PKI, Venafi, Luna HSM, Windows Server, VMware, Unix, Linux
2w
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Senior Systems Engineer
Chicago, Illinois, United States
$125k-$145k/yr HybridFull Time
Guaranteed Rate
Guaranteed Rate: Residential mortgage lender providing home financing and refinancing solutions.
5+ YOE5+ years systems engineering experience; Windows Server, Active Directory, Microsoft 365, cloud (Azure/AWS), PowerShell automation, virtualization, networking and security experience required.
Windows Server, Active Directory, Group Policy, DNS, DHCP, PKI, PowerShell, Python, REST APIs, Microsoft Graph, Git, Terraform, Bicep, ARM, Ansible, CI/CD, Microsoft 365, Microsoft Entra ID, Exchange Online, Teams, SharePoint, OneDrive, Azure, AWS, VMware vSphere, Hyper-V, Microsoft Intune, Configuration Manager, Azure Arc, Microsoft Sentinel, Defender, CrowdStrike, Splunk, Logscale, ServiceNow, Jira
6d
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Senior Engineer-CAMPS Inc I
Scott AFB, Illinois, United States
OnsiteFull Time
OBXtek
OBXtek: Provides professional services and technical solutions to federal agencies.
Senior-level IT systems engineering experience, secret clearance, RMF knowledge, IA concepts, security assessments, system integration, cloud and Oracle migrations, and test development.
Oracle, Risk Management Framework (RMF), CMMI-Dev Level III, ITIL, Six Sigma, PMI, ISO
1mo
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Systems Engineer (Microsoft Cloud & Infrastructure)
Barrington, Illinois, United States
$90k-$120k/yr OnsiteFull Time
Sentinel Technologies
Sentinel Technologies: Provides managed IT, cybersecurity, and cloud solutions to businesses.
5+ YOE5+ years in systems engineering with hands-on Microsoft Azure, Microsoft 365/O365, Windows Server, AD/DNS, security practices, troubleshooting, and strong communication; PowerShell and relevant certifications preferred.
Microsoft Azure, Microsoft 365, O365, Exchange Online, Teams, SharePoint, OneDrive, Windows Server, Active Directory, DNS, PowerShell, VMware, Cisco, Dell
3mo
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IT Systems Engineer
Chicago, Illinois, United States
$110k/yr OnsiteFull Time
Energy CX
Energy CX: Provides energy brokerage and management services for businesses.
5+ YOE5+ years hybrid IT/infrastructure experience with hands-on IT ops, security, cloud engineering, and vendor management.
Google Workspace, Jamf, Kandji, Intune, Terraform, AWS, Datadog, Grafana, CloudWatch, VPC, IAM
6d
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Senior Systems Engineer
Illinois, United States
RemoteFull Time
Independence Pet Group
Independence Pet Group: Integrated platform providing pet insurance and health services.
Design, develop, maintain and support network, hardware, database and system software infrastructure; implement disaster recovery and security; analyze business problems and lead technical recommendations.
2w
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Elasticsearch Engineer (Secret Clearance)
Scott Air Force Base, Illinois, United States
OnsiteFull Time
ShorePoint
ShorePoint: Provides cybersecurity and risk management services for federal agencies.
6+ YOE6+ years systems engineering experience with 2+ years Elastic Stack in production, Linux and networking fundamentals, containerization and IaC, cloud proficiency, federal security controls knowledge, strong communication and problem-solving.
Elastic Cloud Enterprise (ECE), Elastic Cloud on Kubernetes (ECK), Elastic Cloud, Elastic Agent, Fleet, Logstash, Beats, Kibana, Ansible, Terraform, Linux, Python, Bash, PowerShell
1mo
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Systems Engineer - Windows
Chicago or New York City or London
$150k-$250k/yr OnsiteFull Time
Hudson River Trading
Hudson River Trading: A quantitative firm using technology to trade global financial markets.
10+ YOE10+ years Microsoft-based engineering experience; Ansible, Terraform, PowerShell, Microsoft Graph API, Microsoft Azure, Intune, Autopilot, Entra ID, and Active Directory experience; strong automation, IaC/CaC, and security design skills.
Windows, Ansible, Terraform, PowerShell, Microsoft Graph API, Microsoft Azure, Microsoft Intune, Autopilot, Entra ID, Active Directory
2w
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Business Systems Engineer II
California or Colorado or Florida or Georgia or Illinois or Maryland or Minnesota or North Carolina or New York or Ohio or Oklahoma or Pennsylvania or Tennessee or Texas or Virginia or Washington or West Virginia or Arizona or Delaware or Kentucky or Michigan or New Hampshire or Nevada
$64k-$85k/yr RemoteFull Time
Accurate Background
Accurate Background: Provides employment background screening and drug testing services.
3+ YOE3+ years supporting business systems (Salesforce focus), hands-on Salesforce configuration, knowledge of security and integrations/APIs, experience with structured delivery/SAFe, strong communication and problem-solving.
Salesforce Sales Cloud, Salesforce Service Cloud, Salesforce, APIs, SAFe
1w
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Senior Data Engineer
Indianapolis or Woodland Hills or Ashburn or Costa Mesa or Miami or Richmond or Chicago or New York City or Seattle or Grand Prairie or Chicago or Atlanta or Iselin or Overland Park or Tampa or Woburn
$127k-$229k/yr HybridFull Time
Elevance Health
Elevance HealthNYSE: ELV: Provides health insurance plans and integrated healthcare services.
8+ YOEBS/BA and 8+ years technical experience in systems administration/security, data platform architecture, Microsoft Fabric/Azure, data pipelines, SQL/Python, and regulatory compliance (HIPAA,NIST,SOC2).
Microsoft Fabric, Apache Spark, SQL, Python, PySpark, Spark, Delta Lake, Parquet, REST APIs, JSON, Git, Azure DevOps, CI/CD
1mo
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Associate IAM Engineer
Chicago or Illinois or California or Colorado or New York
$70k-$95k/yr HybridFull Time
Tempus AI
Tempus AINASDAQ: TEM: Builds a data platform for AI-powered precision medicine diagnostics.
1+ YOE1–3 years in IT/security/systems administration with ≥1 year Okta administration; solid understanding of SAML, OpenID Connect, SCIM, REST APIs, Universal Directory, MFA, and troubleshooting authentication and provisioning issues.
Okta, Okta Workflows, Okta Identity Governance (OIG), Okta Device Assurance, Jamf, Intune, Terraform, Active Directory, HRIS, SAML 2.0, OpenID Connect, OAuth 2.0, SCIM, RESTful APIs
5d
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Systems Engineer
Scott Air Force Base, Illinois, United States
$40k-$80k/yr OnsiteFull Time
SAIC
SAICNYSE: SAIC: Provides engineering, IT, and mission support services to government.
4+ YOEBA/BS+4yrs, DoD Secret clearance, IAT Level II certification (e.g., Security+ CE), CE certification in technical area, Windows Server 2012/2016, Azure or AWS, Linux, LDAP/Kerberos/Active Directory, SAN/NAS, on-call availability.
Splunk, Cisco, McAfee, Microsoft Windows Server 2012, Microsoft Windows Server 2016, Azure, AWS, Linux, Solaris, LDAP, Kerberos, Active Directory, SAN, NAS
1mo
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Senior Systems Engineer
Chicago, Illinois, United States
$112k-$140k/yr HybridFull Time
Xeris Biopharma
Xeris BiopharmaNASDAQ: XERS: Develops and commercializes innovative biopharmaceutical therapies and products.
3+ YOE3+ years supporting enterprise IT infrastructure with Microsoft 365/Azure, identity and endpoint management, scripting (PowerShell/Microsoft Graph/KQL), and security/compliance experience.
Microsoft 365, Microsoft Azure, Microsoft Entra ID, Microsoft Azure AD Connect, Microsoft Intune, Autopilot, SAML, SCIM, Windows servers, PowerShell, Microsoft Graph, KQL, Copilot, PowerPlatform, Microsoft Office Suite