Journeyman System Administrator

Maximus is a trusted federal partner supporting mission‑critical programs across national security, defense, and public service delivery. Our work focuses on sustaining, operating, and improving essential government systems and services, with proven operational excellence, and a commitment to mission success for our customers. Joining Maximus means becoming part of a collaborative, mission‑driven organization where teamwork, accountability, and professional growth are core to how we operate. We invest in our workforce through training, education, and career development, empowering professionals to deliver high‑impact solutions while contributing to outcomes that matter at a national scale. This position is contingent upon contract award and position availability. Selected candidates will receive a contingent offer of employment, which will become final only upon successful contract award to Maximus, availability of the position, and receipt of authorization to proceed. The Journeyman System Administrator will be supporting enterprise Patch and Upgrade Management operations. Responsible for executing vulnerability remediation, system patching, image maintenance, and post‑deployment validation across large‑scale endpoint, server, cloud, and on‑prem environments. Ability to obtain and maintain a Public Trust is required. An active Public Trust and/or DHS suitability is preferred. Must be a U.S. Citizen without dual citizenship. Internal Job Profile Code: TCS220, T4, Band 7 Job‑Specific Essential Duties and Responsibilities: 7+ years of system administration experience within enterprise IT environments Execute CVE‑based patching by severity across client, server, cloud, and on‑prem environments. Develop, test, maintain, and deploy system images and standardized configurations to support secure and consistent enterprise deployments. Perform manual Linux/UNIX patching activities across physical and virtual server environments, including validation and rollback when required. Track, document, and report patching activities and remediation status to support compliance and audit visibility. Conduct post‑deployment validation, monitor system impacts, and ensure operational stability across production and non‑production environments. Meet critical and high‑severity vulnerability remediation timelines and execute contingency/rollback procedures as needed. Support large‑scale endpoint and infrastructure environments, including workstations, mobile devices, voice/video endpoints, and physical/virtual servers. Job‑Specific Minimum Requirements: Public Trust eligibility required; active Public Trust and/or DHS suitability preferred; U.S. Citizen without dual citizenship. Bachelor’s degree in Computer Science, Information Technology, or related field. Enterprise patch and vulnerability management (CVE, severity‑based remediation). Windows Server and Linux/UNIX administration with manual patching experience. Physical and virtual server administration (on‑prem and cloud environments). Change, configuration, and release management processes. System imaging, configuration baselines, and rollback procedures. Compliance‑driven documentation and reporting; scripting experience (PowerShell, Bash, Python). Preferred Skills and qualifications: Scripting experience (PowerShell, Bash, Python). Exposure to configuration management or automation tooling (e.g., Ansible). Experience supporting large‑scale endpoint environments (30k+ workstations, mobile, VoIP, VTC). Familiarity with ITSM platforms and operational reporting. Experience working in federally regulated IT environments. Minimum Salary: $70,000 Maximum Salary: $100,000 Maximus is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, age, national origin, disability, veteran status, genetic information and other legally protected characteristics. #J-18808-Ljbffr Maximus