Systems Administrator IV

**Posting Summary:** Mission Multiplier is looking for a Systems Administrator IV to provide expert-level systems administration support onsite at Marshall Space Flight Center (MSFC) on one of our government projects. **Job Responsibilities:** - Applies expert knowledge of concepts, processes, practices, and procedures on technical assignments. - Performs work that requires expert practical experience and training. - Responsible for installing, configuring, and maintaining operating system workstations and servers, including virtual, cloud, as well as web servers, in support of business processing requirements. - Performs software installations and upgrades to operating systems and layered software packages. - Schedules installations and upgrades and maintains them in accordance with established IT policies and procedures. - Monitors and tunes the system to achieve optimum performance levels. - Ensures workstation/server data integrity by evaluating, implementing, and managing appropriate software and hardware solutions. - Supports infrastructure and systems database migrations. - Ensures data/media recoverability by implementing a schedule of system backups and database archive operations. - Supports media management through internal methods and procedures or through offsite storage and retrieval services. - Develops and promotes standard operating procedures. - Conducts routine hardware and software audits of workstations and servers to ensure compliance with established standards, policies, and configuration guidelines. - Develops and maintains a comprehensive operating system hardware and software configuration database/library of all supporting documentation. - Information System Security Engineer (ISSE) support including cybersecurity coordination, risk mitigation support, security control implementation assistance, compliance troubleshooting, and accreditation support activities with Windows, Mac, or Linux systems. - Maintenance and support of security documentation including System Security Plans (SSPs), SA&A artifacts, risk assessments, control implementation documentation, configuration management records, and audit support materials. - Manage operating system and third-party application patch deployment using the BigFix Console, ensuring endpoint security and compliance. - Deploy and maintain Jamf for macOS device management, including installation, configuration, and policy enforcement. - Coordinate technical support across an off-site, multi-tenant, interagency NASA mission-support facility hosted at the University of Alabama in Huntsville (UAH). **Qualifications:** - Minimum of a B.S./B.A. in IT or related field. - Minimum of 12 years of related experience. - Experience administering Linux systems (RHEL and Debian variants) Mac OSX, and Windows systems. - Experience working in compliance-driven environments utilizing NIST 80053 security controls. - Experience implementing and maintaining continuous monitoring and security reporting for Windows and Linux platforms. - Experience implementing Data-in-Transit (DIT) and Data-at-Rest(DAR) protections using FIPS 140-3 compliant encryption. - Experience enrolling and provisioning Windows and macOS endpoints into a Network Access Control (NAC) environment. - Ability to coordinate with network engineering teams to resolve endpoint connectivity and compliance issues without performing network infrastructure administration. - Familiarity with physical network infrastructure and ability to identify and verify switch port connections, trace endpoint cabling through patch panels, and coordinate with network engineering teams to resolve connectivity issues. - Ability to obtain and maintain Public Trust security clearance. - Ability to interact with other team members. - Other duties as assigned. **Additional Details:** - None **ABOUT MISSION MULTIPLIER** *Mission Multiplier is a certified small business headquartered in Huntsville, Alabama. We multiply the impact that clients c…