Hiring: Senior System Administrator Company: DNI (Delaware Nation Industries) Location: Dayton, OH Job Posted Time: 2026-09-16 21:19:40 Target Skills & Keywords : Bash, Configuration Management, Linux, PKI, PowerShell, Security Clearance About the job Experience: •7 years of experience as a Systems Administrator in enterprise IT environments Required Skills: •Serve as a senior systems administrator and technical lead in a mixed Windows/Linux enterprise environment •Administer and support enterprise infrastructure, including servers, virtualization platforms, storage systems, databases, hosted services, and related enterprise technologies •Manage core services such as VMware vSphere, network storage, file services, web hosting, and application hosting •Troubleshoot and resolve complex issues affecting infrastructure, integrated services, system performance, and operational availability •Support infrastructure upgrades, lifecycle management, technology refresh efforts, and service improvement initiatives •Implement and maintain cybersecurity requirements, including system hardening, vulnerability remediation, PKI integration, and support for Assessment and Authorization activities •Provide technical leadership, mentorship, and escalation support to administrators and other IT personnel •Coordinate with engineers, cybersecurity personnel, mission partners, and stakeholders to maintain reliable, secure, and interoperable services Qualifications: •Minimum of 7 years of experience as a Systems Administrator in enterprise IT environments •Demonstrated experience implementing and maintaining secure, compliant systems in accordance with Department of War cybersecurity requirements •Demonstrated ability to provide technical leadership, mentor personnel, and serve as a senior escalation point •Must possess an active DoD 8570.01-M IAT Level I certification, such as Security+ •Must possess an active Secret security clearance or higher Compensation: •Covers 100% of employee benefit premiums, including Medical (PPO or HDHP Option), Vision, Dental Interested candidates, please apply directly through the job posting on company's career page or try via AI auto apply on this platform. Don't miss this opportunity to join a forward-thinking team!