Senior System Administrator 746

Join a team that powers the business enterprise behind the mission. Freedom supports the sustainment, modernization, and transformation of more than 100 enterprise business systems that enable tens of thousands of government personnel, industry partners, and prospective employees worldwide. Our teams develop, modernize, secure, and operate the applications and services that support workforce management, training, financial operations, acquisitions, security processing, and executive decision-making across multiple secure environments. As part of this program, you will work alongside experts in software engineering, cloud computing, DevSecOps, systems engineering, and enterprise platforms to modernize legacy systems, automate business processes, and deliver innovative solutions that improve efficiency, reduce costs, and enhance the user experience. The work you perform will help ensure the organization has the technology, information, and capabilities needed to support its workforce and accomplish its mission. Join a team that powers the business enterprise behind the mission. Freedom supports the sustainment, modernization, and transformation of more than 100 enterprise business systems that enable tens of thousands of government personnel, industry partners, and prospective employees worldwide. These mission-enabling applications support workforce management, finance, acquisitions, security processing, training, recruitment, logistics, program management, executive decision-making, and other critical business functions across multiple secure environments. We are seeking a Senior System Administrator for one of our PRIME CONTRACTS supporting mission-critical enterprise applications and services across the Government Corporate Management Services (CMS) portfolio. Our mission supports the Government Corporate Management Services (CMS) by providing full life cycle support services through the sustainment, modernization, and transformation of enterprise corporate applications. As soon as an employee enters a customer facility, they touch one of these applications, which are critical to the daily functions of thousands of users across acquisition, business, finance, HR, training, recruitment, program management, security, logistics, and more. Come join our diverse and growing team with lots of opportunities! Primary Responsibilities: Work on a fast-paced team providing support for the implementation, troubleshooting, and maintenance of Information Technology (IT) systems supporting critical enterprise applications. Provide senior-level technical leadership in the administration, operation, troubleshooting, and maintenance of enterprise IT systems and infrastructure. Serve as a leader and mentor for the system administration team, providing direction, guidance, and oversight while maintaining a strong hands-on role in day-to-day operations and complex technical problem resolution. Manage IT system infrastructure and associated processes, ensuring the availability, reliability, security, and performance of enterprise applications and services. Provide day-to-day operations, monitoring, maintenance, and problem resolution for client systems, servers, storage platforms, network devices, and related infrastructure. Provide Tier 1 (Help Desk) and Tier 2 (Escalation) support, including problem identification, diagnosis, troubleshooting, and resolution. Serve as a senior escalation point for complex technical issues and provide technical direction and guidance to other system administrators. Support the escalation process and communicate system status, issues, and resolutions to agency management and internal stakeholders. Assist with hardware support activities, dispatch processes, and issue resolution through completion. Configure, administer, and maintain Windows and UNIX/Linux operating systems, including software installation, patching, system hardening, and performance tuning. Maintain the integrity and availability of infrastructur…