UNIX System Administrator Jobs in Chicago, IL

Join our team as you lead the management of Mainframe and Distributed Data Center Operations, ensuring high service delivery, optimizing processes, and enhancing client relationships across global tea...

Lead the future of data center deployments by ensuring technical readiness and operational excellence. Collaborate with cross-functional teams to identify risks, manage vendors, and streamline process...

Manage IT infrastructure by designing, implementing, and supporting systems to ensure performance, security, and reliability. Collaborate with teams to enhance operations and mentor junior staff, whil...

Advance technical excellence in naval ship design by providing critical support across all phases of ship acquisition. Leverage your vast engineering expertise to conduct thorough analyses, manage del...

Join a dynamic team to optimize and enhance high-performance databases, ensuring reliability and efficiency. Lead the design and implementation of critical database systems that support seamless opera...

Join us to optimize high-performance databases as you leverage your expertise in DataStax and Cassandra, enhancing critical systems that support operations across North America with innovative design...

Transform complex database environments by leveraging your advanced skills in DataStax and Cassandra. Collaborate with development teams to optimize performance, ensuring business continuity and robus...

Innovate high-performance database systems by leading design and optimization efforts. Collaborate with application teams to enhance reliability and performance of critical databases that support exte...

Drive the management and support of Cloud Infrastructure for application portfolios, ensuring high availability and reliability. Collaborate with global teams to provide operational support and implem...

Drive strategic technology solutions for complex federal accounts, engaging with senior leaders to create impactful roadmaps that align with military and civilian missions, while ensuring security com...

Advance your career by serving as a trusted technical advisor for complex government accounts, driving mission-aligned technology strategies and executing impactful account plans in a highly regulated...

Elevate your career by managing Oracle Fusion Middleware projects. Own deployments, configurations, and troubleshooting in a dynamic environment, ensuring effective operations and support for vital co...

Shape the future of software delivery by ensuring reliability, security, and automation in our GitHub environment. Collaborate with engineering teams to enhance developer experience while enforcing co...

Unlock the potential of major construction projects by expertly managing schedules, innovating processes, and collaborating with multidisciplinary teams to deliver excellence in diverse market sectors...

Transform processes through expert ERP administration and support, leveraging deep Deltek Costpoint knowledge to enhance functionality, troubleshoot issues, and drive system improvements while collabo...

Empower program success by managing daily operations and documentation for a key transformation initiative, coordinating across teams, maintaining accurate records, and supporting financial and admini...

Join a team that's dedicated to enhancing security through innovative Active Directory and Azure AD solutions. Leverage your expertise in identity management and systems engineering to support and upg...

Lead the design and implementation of Active Directory and Azure AD solutions, ensuring seamless integration and security across platforms. Collaborate with a dedicated team to enhance identity manage...

Elevate enterprise security by leading complex investigations and enhancing SOC processes. You'll independently improve detection strategies and operational metrics while mentoring junior analysts in...

Transform enterprise infrastructure by leveraging your expertise in Mainframe and Open Systems integration. Collaborate with clients to optimize solutions, drive innovation, and enhance the value of t...

Drive operational excellence by managing Server/Core Switch configurations, integrating systems, and troubleshooting issues to ensure a robust network environment that meets client needs across multip...

Drive day-to-day operations of Azure and Microsoft 365 services, ensuring optimal performance, incident management, and compliance with service levels while supporting service transitions and maintena...

Lead the charge in managing multi-cloud infrastructure, guiding a team of engineers in design, implementation, and optimization of cloud solutions across AWS, GCP, and Azure while ensuring security an...

Lead IT operations across North America, ensuring security and technology delivery. Collaborate with stakeholders to align IT strategy with business goals, manage infrastructure, and drive innovation...

Join our team to enhance security and automation in delivery pipelines, driving consistent deployments and compliance through modern DevSecOps practices alongside skilled professionals...