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9 results for Network Security Administrator in Chicago, IL

Network Engineer

Schaumburg, IL
onsite
Temporary / Contract
71.25 - 82.5 USD / Hourly
We are looking for an experienced Network Engineer to support enterprise networking and security initiatives in Schaumburg, Illinois. This Long-term Contract position focuses on designing, administering, and optimizing secure network environments across firewall, wireless, and cloud-managed platforms. The role requires a hands-on, detail-oriented individual who can strengthen connectivity, improve visibility, and help deliver infrastructure changes with minimal disruption. Responsibilities: • Administer and enhance network security platforms using Fortinet solutions, including firewall, endpoint access, and analytics tools. • Manage Aruba-based switching, wireless, and centralized management environments to maintain reliable campus and branch connectivity. • Plan and execute secure connectivity updates, including IPsec-related changes, pilot deployments, and production implementations. • Integrate network and security systems with identity services such as Active Directory and Entra ID to support controlled access. • Oversee certificate usage and lifecycle processes to help maintain trusted authentication across network services. • Monitor logs, generate operational reporting, and troubleshoot issues spanning firewalls, routing, wireless, and security infrastructure. • Create and maintain technical documentation, including standard procedures, operational runbooks, and knowledge transfer materials. • Collaborate with technical teams to support cloud-managed networking and security platforms while improving performance and resilience.
2026-06-15T00:00:00Z

Infrastructure Administrator

Bolingbrook, IL
onsite
Temporary / Contract
55.4135 - 64.163 USD / Hourly
We are looking for an Infrastructure Administrator to join a collaborative on-site team in Illinois. This Long-term Contract position is ideal for a hands-on, detail-oriented individual who can support core systems, strengthen endpoint operations, and resolve escalated technical issues across the environment. The role offers the opportunity to take ownership of infrastructure stability, backup readiness, virtualization support, and day-to-day operational improvements. Responsibilities: • Oversee endpoint administration activities, including application packaging, software distribution, operating system imaging, and patch deployment across managed devices. • Investigate and resolve client management issues by monitoring device health, troubleshooting deployment failures, and improving reporting accuracy. • Maintain and support core infrastructure platforms, including Nutanix systems, Windows Server environments, Active Directory, and Group Policy. • Perform routine maintenance tasks such as upgrades, patch cycles, performance checks, and general system administration to keep infrastructure reliable. • Administer backup and recovery operations using Veeam, including job monitoring, restore execution, and validation of backup integrity. • Contribute to disaster recovery preparedness by updating documentation, assisting with recovery planning, and helping verify operational readiness. • Troubleshoot network and connectivity issues involving firewalls, VLANs, remote access, and related infrastructure components in a Palo Alto environment. • Provide Tier 2 and Tier 3 technical support for hardware, software, and connectivity incidents while managing a steady flow of service requests and escalations. • Identify opportunities to streamline administrative processes through automation and practical improvements to endpoint and infrastructure management workflows.
2026-06-18T00:00:00Z

IT Security Specialist

Deerfield, IL
onsite
Temporary / Contract
47.5 - 55 USD / Hourly
We are looking for an IT Security Specialist to join a manufacturing organization in Deerfield, Illinois on a Long-term Contract assignment. This role will help strengthen day-to-day cyber defense operations by supporting threat monitoring, incident handling, user security education, and risk reduction across endpoints and identities. The position works closely with internal technology teams and external security partners to improve visibility, response effectiveness, and overall protection of the environment. Responsibilities: • Coordinate with a managed detection and response partner to support continuous security monitoring and timely investigation of suspicious activity. • Review, assess, and escalate security events within SIEM and related security platforms, helping drive efficient triage and follow-up actions. • Participate in cyber incident response efforts by assisting with investigation, containment steps, corrective actions, and post-event tracking. • Refine detection logic, alert thresholds, and response workflows to improve the quality and effectiveness of security operations. • Contribute to organization-wide security awareness efforts by supporting phishing exercises, educational content, and user-focused communications. • Analyze vulnerability scan findings, help rank remediation priorities based on business risk, and monitor closure progress with technical teams. • Support identity and access security activities in Microsoft Entra ID, including access reviews, role-based permissions, and governance practices. • Assist with endpoint protection operations by monitoring tools such as Microsoft Defender, CrowdStrike, or SentinelOne and helping resolve endpoint-related threats. • Use endpoint management technologies such as Microsoft Intune and Group Policy to apply security baselines, review configurations, and strengthen device hardening standards.
2026-06-23T00:00:00Z

Systems Administrator

North Aurora, IL
onsite
Permanent / Full Time
80000 - 90000 USD / Yearly
We are seeking a skilled Systems Administrator to support, maintain, and enhance enterprise infrastructure environments. This role is responsible for day-to-day administration of servers, systems, and related technologies, as well as troubleshooting issues, supporting end users, and ensuring reliable system performance. The ideal candidate has strong technical experience, a proactive mindset, and the ability to work across multiple infrastructure platforms. Key Responsibilities<ul><li>Administer, maintain, and support physical and virtual server environments</li><li>Monitor system performance, availability, and security</li><li>Install, configure, patch, and upgrade operating systems and server applications</li><li>Troubleshoot hardware, software, and infrastructure issues in a timely manner</li><li>Manage user accounts, permissions, and access controls</li><li>Support Active Directory, group policies, file services, and related enterprise systems</li><li>Assist with backup, recovery, and disaster recovery processes</li><li>Maintain system documentation, procedures, and inventory records</li><li>Collaborate with network, security, cloud, and help desk teams to resolve issues and improve operations</li><li>Participate in on-call support or after-hours maintenance as needed</li></ul>
2026-06-09T00:00:00Z

Data Security Analyst

Chicago, IL
onsite
Temporary / Contract
79.1635 - 91.663 USD / Hourly
We are looking for a Data Security Analyst to support and strengthen email and messaging security operations for a Contract position based in Chicago, Illinois. This role focuses on protecting the organization from phishing, malware, impersonation, and other email-borne threats while improving the reliability and security of mail delivery. The ideal candidate brings deep experience with Proofpoint, hybrid messaging environments, and user-focused security practices, along with the ability to communicate clearly across technical and non-technical teams. Responsibilities: • Investigate and resolve complex email security and delivery issues, including routing failures, encryption challenges, quarantine events, and user-reported security concerns. • Review dashboards, system logs, and alert activity to identify and respond to phishing attempts, malware incidents, spoofing, and impersonation threats. • Administer and optimize Proofpoint Essentials and related integrations to maintain strong protection across the messaging environment. • Configure and maintain email security controls, including encryption settings, policy rules, and quarantine management processes. • Lead initiatives involving Proofpoint enhancements, platform updates, and rollout of new security capabilities. • Develop clear guidance and training materials for IT teams and end users on secure email practices and available protection tools. • Support security awareness efforts by helping manage phishing simulation activities and user education programs. • Collaborate with broader security operations by connecting email security insights with SIEM platforms and other enterprise security tools where applicable.
2026-06-24T00:00:00Z

Infrastructure & Security Engineer

Naperville, IL
onsite
Permanent / Full Time
120000 - 148000 USD / Yearly
Our client is seeking an experienced Infrastructure Security Engineer to support and secure a hybrid Microsoft environment spanning both on-premises and cloud platforms. This role is ideal for a hands-on professional with deep experience across traditional server and network infrastructure, along with responsibility for enterprise security tooling, threat monitoring, and ongoing security operations. The organization is currently in a hybrid state and actively transforming to a more cloud-centric environment, so this individual will play a key role in both day-to-day operational security and longer-term modernization efforts. Based on general knowledge. Key Responsibilities<ul><li>Manage and secure core infrastructure, including servers, networks, firewalls, switches, VPNs, and related systems in a hybrid on-premises and cloud environment. Based on general knowledge.</li><li>Administer, maintain, and optimize security tools such as endpoint protection, vulnerability management, SIEM, email security, identity and access management, and monitoring platforms. Based on general knowledge.</li><li>Monitor infrastructure and security events, investigate alerts, respond to incidents, and support remediation efforts. Based on general knowledge.</li><li>Partner with infrastructure and leadership teams to strengthen security controls across Microsoft technologies, including Active Directory, Azure, Microsoft 365, and related platforms. Based on general knowledge.</li><li>Support the company’s transition from traditional on-premises infrastructure to cloud-based solutions by helping design and implement secure architectures and best practices. Based on general knowledge.</li><li>Perform vulnerability assessments, patch management coordination, system hardening, and access reviews across servers, endpoints, and network devices. Based on general knowledge.</li><li>Develop and maintain security documentation, standards, procedures, and incident response processes. Based on general knowledge.</li><li>Assist with compliance, audit readiness, and security improvement initiatives. Based on general knowledge.</li><li>Collaborate with internal teams and third-party vendors to ensure reliable infrastructure performance and effective security coverage. Based on general knowledge.</li></ul>
2026-06-04T00:00:00Z

Infrastructure and Operations Administrator

Chicago, IL
onsite
Temporary / Contract
38 - 44 USD / Hourly
We are looking for an Infrastructure and Operations Administrator to support core systems, end-user technology, and enterprise platform administration for a Long-term Contract position based in Chicago, Illinois. In this role, you will help maintain a stable and secure IT environment by managing cloud services, directory services, virtual infrastructure, and workstation support. The ideal candidate brings hands-on systems administration experience, strong troubleshooting ability, and a practical approach to improving reliability, security, and day-to-day operations. Responsibilities: • Oversee the administration of the Microsoft 365 environment, including account setup, license assignment, and support for Exchange Online, Teams, and SharePoint services. • Maintain Active Directory by handling employee onboarding and offboarding, updating group memberships, and managing access permissions across systems. • Support VMware vCenter operations through virtual machine deployment, infrastructure monitoring, performance tuning, and issue resolution. • Carry out patching activities for Windows and Linux servers and endpoints to keep systems secure, current, and aligned with compliance expectations. • Deliver hands-on desktop support by diagnosing and resolving hardware, software, and user access issues in a timely manner. • Prepare and deploy workstations for new employees and device replacement initiatives using standardized imaging and configuration procedures. • Track system health and operational performance, identifying opportunities to enhance efficiency, automate routine tasks, and reduce recurring issues. • Administer Group Policy settings and endpoint configurations to promote consistency, security, and effective device management. • Create and maintain clear technical documentation for system configurations, support procedures, and troubleshooting practices.
2026-06-02T00:00:00Z

Security Manager

Chicago, IL
onsite
Temporary / Contract
55.4135 - 64.163 USD / Hourly
We are looking for a Security Manager to lead security compliance and risk oversight for a long-term contract opportunity based in Chicago, Illinois. This role is ideal for a leader who can guide control assessments, strengthen governance practices, and support audit readiness across a complex enterprise environment. The successful candidate will combine hands-on knowledge of cybersecurity frameworks with the ability to manage teams, advise stakeholders, and improve security program maturity. Responsibilities: • Lead security governance and compliance activities, including oversight of IT general controls and alignment with established regulatory and organizational standards. • Direct and develop a team of security professionals, setting priorities, reviewing performance, and ensuring consistent execution across core security initiatives. • Partner with internal stakeholders and external auditors to coordinate assessments, address findings, and maintain readiness for recurring audit activity. • Evaluate enterprise and third-party risk exposures, recommend mitigation strategies, and help strengthen risk management practices across the organization. • Support the advancement of security programs by assessing control maturity, identifying gaps, and driving practical improvements in policy, process, and oversight. • Provide guidance on industry frameworks such as ISO 27001, SOC 2, and FedRAMP to help align security operations with broader compliance objectives. • Collaborate with technical teams across cybersecurity, application security, network security, and SIEM functions to ensure controls are appropriately designed and monitored. • Contribute to emerging governance initiatives, including areas related to AI risk and oversight, where applicable.
2026-06-25T00:00:00Z

Database Administrator

Des Plaines, IL
remote
Temporary / Contract
57 - 66 USD / Hourly
We are looking for an experienced Database Administrator to support and optimize critical database environments for a contract assignment in Illinois. This contract position is ideal for a detail-oriented candidate who brings deep expertise in database performance, stability, and capacity planning across complex Microsoft SQL Server landscapes. The role will focus on improving efficiency, safeguarding availability, and providing clear technical guidance to a range of stakeholders. Responsibilities: • Analyze database performance trends and resolve bottlenecks using wait statistics, execution plan reviews, and deadlock investigation techniques. • Design and refine indexing approaches to improve query efficiency and support large-scale data processing workloads. • Administer high-availability database environments, including clustered deployments, AlwaysOn configurations, and multi-instance setups. • Use monitoring and diagnostic platforms such as Redgate, SQL profiling tools, and stress-testing solutions to evaluate system health and performance. • Partner with technical teams to optimize partitioning strategies for large datasets and strengthen overall database reliability. • Support database-related components and processes connected to SSIS and SSRS within the broader data environment. • Configure and maintain database server settings in coordination with Windows Server administration, including memory allocation, access controls, and security practices. • Communicate analysis results, risks, and recommended improvements clearly to both technical audiences and business stakeholders.
2026-06-24T00:00:00Z