IT Systems Administrator Jobs in Chicago, IL

Manage the implementation and operation of IT systems supporting DOJ's complex litigation needs. Optimize performance and ensure security while leading a team in a fully remote environment dedicated t...

Transform IT services by managing Windows/Linux systems, administering Active Directory, and ensuring network security. Collaborate with teams to enhance application performance and maintain data inte...

Elevate server performance by designing, implementing, and maintaining secure, enterprise-level server infrastructure, leveraging virtualization, automation tools, and best practices for efficiency an...

Take ownership of DLA's Okta environments, ensuring stable operation through planning, development, and optimization. Engage in end user support, conduct training, and guide on technology direction to...

Empower operations as a System Administrator for MODES III, managing AWS and on-prem cloud systems. Ensure system security, availability, and performance while collaborating with DevOps teams to suppo...

Deliver expert administration and management of ClearPath OS2200 systems, ensuring optimal performance and security. Collaborate with teams to enhance services, support integration, and drive continuo...

Shape the future of enterprise network operations, security, and infrastructure while managing and sustaining an integrated IT environment with a focus on routing, switching, and network security tech...

Transform IT operations by supporting a virtualized Microsoft environment, enhancing system performance, and executing key projects while collaborating across departments for business success...

Champion innovative IT solutions at the DOJ by analyzing requirements, designing systems, and leading technical teams to support complex litigation missions in a fully remote environment...

Join a high-impact Agile team to enhance mission-critical systems in AWS, ensuring optimal performance and reliability while driving operational excellence across diverse cloud infrastructure and appl...

Join a dynamic team as a Network Engineer to optimize and secure network infrastructure, troubleshoot complex issues, and enhance client collaboration in a fully remote environment...

Lead mission-critical systems support as a TAK Operations Specialist. Ensure seamless deployments, maintain system reliability, and enhance operational decision-making through expert administration an...

Unlock potential by designing and managing VMware vSphere environments while implementing disaster recovery solutions. Collaborate in cross-functional teams to enhance capacity and optimize performanc...

Contribute to ITOM excellence by managing ServiceNow platforms, ensuring data integrity, and optimizing integrations in compliance with federal standards. Collaborate with teams to enhance system perf...

Elevate system functionality by managing IT applications and enhancing project delivery through collaboration. Utilize your expertise in troubleshooting and maintenance while integrating AI solutions...

Lead the charge in delivering enterprise IT infrastructure initiatives, focusing on cloud, network, and security. Collaborate with cross-functional teams to optimize performance and ensure alignment w...

Drive enterprise IT systems engineering to support a fast-growing global company. Collaborate with cross-functional teams to deliver technology solutions and ensure security compliance while maintaini...

Join a team that ensures secure, compliant IT operations for mission-critical services. As a System Administrator, you'll manage server environments, support cybersecurity protocols, and collaborate w...

Lead enterprise systems and network administration, ensuring secure and reliable operations for critical IT infrastructures while heading outage response and compliance initiatives for a complex Depar...

Empower users by providing hands-on IT support, maintaining systems, and enhancing workflows for onboarding and asset management, ensuring seamless operations and exceptional service for manufacturing...

Lead security initiatives to safeguard IT operations and enhance resilience. Collaborate with teams to implement effective security measures and manage applications, delivering a robust defense agains...

Shape the future of IT security by managing systems to strengthen resilience and protect against evolving threats. Collaborate with teams to design robust security practices while driving seamless ope...

Protect systems for a dynamic enterprise! Join our IT security team to manage controls, enhance resilience, and combat evolving threats while supporting vital business operations and maintaining a str...

Join a team that's dedicated to maintaining and enhancing Linux/Unix environments through expertise in administration, troubleshooting, and proactive monitoring. Support critical operations while deve...

Deliver top-tier Linux/Unix systems administration while optimizing performance, troubleshooting complex issues, and ensuring compliance. Take ownership of operational reports and incident resolution...