Job Title

The Systems Administrator, Senior manages and optimizes complex enterprise infrastructure spanning Windows and Linux servers, VMware environments, and cloud services that support missionu2011critical government systems. The role leads major changes, automation, and incident response while ensuring performance, availability, and security remain within organizational and regulatory requirements. Key Responsibilities + Administer heterogeneous server platforms and virtualization stacks (for example, VMware vSphere) for highly available workloads. + Plan, test, and execute complex system changes such as OS upgrades, hypervisor updates, and configuration refactoring with clear rollback strategies and minimal downtime. + Design and tune monitoring, logging, and alerting solutions to provide deep visibility into system performance, capacity, and security posture across onu2011premises and cloud environments. + Use scripting and automation (for example, PowerShell, Bash, Python) to standardize provisioning, configuration, patching, and recurring operational tasks. + Implement and enforce security hardening, access controls, and backup and recovery procedures aligned with organizational and regulatory requirements. + Lead highu2011severity incident response, coordinate rootu2011cause analysis, and drive longu2011term remediation and preventive improvements. + Mentor junior staff, contribute to infrastructure roadmaps, and work within ITILu2011aligned incident, problem, and change processes. Required Qualifications + Bacheloru2019s degree in IT, Computer Science, or a related field, or equivalent experience. + Typically 8 or more years of experience in systems administration for Windows, Linux, or VMware environments in enterprise or government settings. + Deep knowledge of operating systems (for example, Windows Server, Red Hat, or similar) and VMware vSphere/ESXi. + Proficiency in scripting, system monitoring, patch management, and performance tuning. + Strong troubleshooting, communication, and teamwork skills with the ability to manage multiple complex efforts. Preferred Qualifications + Relevant certifications such as Microsoft Windows Server, RHCSA/RHCE, or VMware VCP. + Experience applying ITIL practices and working in highly regulated federal environments. Compensation Ranges Compensation ranges for ASM Research positions vary depending on multiple factors; including but not limited to, location, skill set, level of education, certifications, client requirements, contract-specific affordability, government clearance and investigation level, and years of experience. The compensation displayed for this role is a general guideline based on these factors and is unique to each role. Monetary compensation is one component of ASM's overall compensation and benefits package for employees. EEO Requirements It is the policy of ASM that an individual's race, color, religion, sex, disability, age, sexual orientation or national origin are not and will not be considered in any personnel or management decisions. We affirm our commitment to these fundamental policies. All recruiting, hiring, training, and promoting for all job classifications is done without regard to race, color, religion, sex, disability, or age. All decisions on employment are made to abide by the principle of equal employment. Physical Requirements The physical requirements described in