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5 results for Network Security Engineer in Rockford, IL

Infrastructure & Security Engineer

Naperville, IL
onsite
Permanent / Full Time
120000.00 - 148000.00 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>
2026-06-04T16:08:40Z

Network Engineer

Schaumburg, IL
onsite
Temporary / Contract
71.25 - 82.50 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.
2026-05-07T18:38:41Z

Test Engineer

Round Lake, IL
onsite
Temporary / Contract
33.00 - 36.00 USD / Hourly
We are looking for a Test Engineer to support interoperability testing across connected medical device systems. This role focuses on executing test cases to validate data exchange, system integration workflows, and conformance to healthcare interoperability standards. The engineer will play a critical role in hands-on test execution, defect identification, and accurate reporting in a regulated environment.This position supports increased testing demand tied to multiple concurrent product releases, including Novum IQ, IQE, Spectrum, and Gen V WBM initiatives. Key Responsibilities:· Execute predefined interoperability test cases across medical device systems, interfaces, and integration platforms.· Validate device-to-system and system-to-system data exchange for accuracy, completeness, and reliability.· Record test results, capture system logs, and document defects with clear reproducibility steps.· Perform testing aligned with healthcare standards such as HL7, FHIR, DICOM, and IHE profiles.· Validate message structures, data mapping, and end-to-end workflows.· Verify system behavior under both normal and exception scenarios (e.g., malformed data, connectivity interruptions).· Identify, isolate, and document defects related to interoperability, integration, and data integrity.· Support root cause analysis by providing detailed logs and test evidence.· Re-test fixes and participate in regression testing cycles.· Configure and utilize test tools, simulators, and mock systems to replicate interoperability scenarios.· Assist in maintaining test environments and system connectivity configurations.· Maintain accurate and traceable test records within ALM/test management tools.· Provide regular updates on test progress, risks, and issues.
2026-05-18T13:24:08Z

Linux Systems & DevOps Engineer

Madison, WI
onsite
Permanent / Full Time
90000.00 - 120000.00 USD / Yearly
Robert Half is seeking a Linux Systems & DevOps Engineer on behalf of our client in Madison, WI. This role is ideal for an infrastructure professional with experience in Linux administration, automation, CI/CD, container technologies, and networking. You'll help support and improve a modern infrastructure environment while driving operational efficiency through automation and engineering best practices. What You'll Do<ul><li>Support and maintain Linux-based infrastructure and related platform services.</li><li>Design, build, and improve infrastructure automation using tools such as Ansible, PowerShell, and Python.</li><li>Build and maintain CI/CD pipelines and automated deployment processes.</li><li>Deploy, support, and troubleshoot containerized infrastructure platforms.</li><li>Configure and support network technologies including switching, routing, VLANs, VPNs, and firewalls.</li><li>Administer identity, access, and authentication services.</li><li>Monitor infrastructure health, performance, and availability while responding to operational issues.</li><li>Support Windows-based systems and services as needed.</li><li>Create and maintain technical documentation and operational procedures.</li><li>Collaborate with technical teams on infrastructure projects, upgrades, and troubleshooting efforts.</li><li>Participate in an on-call rotation and support scheduled maintenance activities.</li></ul>
2026-06-01T04:58:43Z

Systems Administrator

Schaumburg, IL
onsite
Temporary to Hire
55.00 - 65.00 USD / Hourly
We are looking for an experienced Systems Administrator to join our team in Schaumburg, Illinois. In this Contract to permanent position, you will play a vital role in maintaining and optimizing the organization's IT infrastructure. This role requires a hands-on approach to managing enterprise systems, troubleshooting issues, and ensuring high performance across a variety of platforms. Responsibilities: • Manage and administer Windows Server environments, including updates, upgrades, and virtual machine maintenance. • Support and maintain Active Directory and Microsoft Entra ID (Azure AD) in hybrid identity setups. • Provide troubleshooting and end-user support for PCs, including hardware and software issues on Intune-managed endpoints. • Oversee Windows desktop support and ensure smooth operations across the organization. • Assist with virtualization platforms such as VMware and other hypervisor environments. • Monitor and manage Azure Backup and Recovery Services Vault-based backup infrastructure. • Contribute to endpoint protection operations using platforms such as CrowdStrike Falcon or similar. • Diagnose and resolve system, network, and application issues, including those related to cloud-managed networking (Meraki). • Follow established change management and ticketing workflows, ensuring compliance with organizational processes.
2026-05-22T15:08:45Z