> Markdown version of [/jobs/ext/2590965-senior-system-administrator](https://www.wearedevelopers.com/jobs/ext/2590965-senior-system-administrator). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior System Administrator - **Company:** ASEC Inc - **Location:** Lexington Park, MD, United States - **Experience:** Expert - **Salary:** $145,000.0 - $160,000.0 - **Contract:** Permanent contract - **Skills:** Microsoft Windows, Server Applications, Backup Devices, Cloud Computing, Cyber Security, Information Systems, System Configuration, Disaster Recovery, Distributed Computing Environment, Middleware, Hyper-V, Linux Servers, Live Virtual and Constructive, Windows Servers, Performance Tuning, Red Hat Enterprise Linux, Simulation Software, Software Engineering, Virtualization Technology, Software Vulnerability Management, Backup and Restore, System Availability, Information Technology, Data Management, Vmware - **Published:** August 12, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=3fca1273580c96b4 ## About the Role * At least 7 years of related experience is required. * Demonstrated experience administering virtualized environments using VMware, Hyper-V, or equivalent virtualization technologies, including system provisioning, maintenance, and performance optimization. * Experience installing, configuring, and maintaining enterprise server infrastructure, storage solutions, backup and recovery systems, and mission-critical applications in classified and unclassified environments. * Experience implementing and maintaining cybersecurity controls in accordance with DoD Risk Management Framework (RMF), DISA Security Technical Implementation Guides (STIGs), and vulnerability remediation best practices. * Experience supporting distributed or enterprise environments requiring high system availability, lifecycle management, patching, troubleshooting, and rapid restoration of services during operational or mission-critical events. * Experience supporting Department of Defense (DoD), Navy, or NAVAIR systems, including simulation, modeling, training, or other mission support environments is highly desired. Education and Certification Requirements: Qualified candidates should have one of the following: * A master's degree or Ph.D. in Engineering, Cybersecurity, Data Science, Information Systems or Information Technology, or Software Engineering. * One of the following industry certifications: SecurityX, CCNP Security, CCSP, FITSP-0 or GFACT AND one of the following: MS Certified Solutions Associate (Windows Server 2016 or later), Red Hat Certified System Administrator, or VMware Certified Professional., * Ability to build positive, collaborative relationships across teams and with external partners. * Effective communicator with strong verbal and written skills. * Proactive, self-directed work style with the ability to operate independently. * Analytical thinker with proven problem-solving capabilities. * Highly organized, with the ability to balance competing priorities in a fast-paced environment. ## Description Looking for an opportunity to apply your technical expertise to a mission that matters, this is it. As the Senior System Administrator, you will support the systems and technologies that power the Navy's premier Live, Virtual, and Constructive (LVC) training environment. By integrating real-world platforms with advanced simulations, this mission recreates the most sophisticated threats facing our warfighters to deliver realistic, high-end combat training that cannot be achieved in the real world alone. As part of our team, you will directly contribute to mission readiness, helping ensure that U.S. and allied forces are trained, tested, and prepared to succeed in the most demanding operational environments. This position will be based fully on-site at our Lexington Park, MD office. Periodic travel to the NAS Oceana Dam Neck Annex in Virginia Beach, VA, where the Global LVC Operations Center is located, will be required. Candidates interested in relocating to the Virginia Beach area may also have the option to work from the government site., * Administering Windows and Linux servers in support of simulation, modeling, training, and mission-planning applications. * Managing VMware, Hyper-V, or cloud-based virtualization environments. * Maintaining enterprise storage solutions, backup systems, and disaster recovery capabilities. * Performing system patching, upgrades, and lifecycle management. * Installing, configuring, and maintaining simulation software and supporting middleware. * Supporting distributed training environments connecting multiple training sites. * Configuring and maintaining application servers supporting LVC exercises. * Ensuring systems are properly synchronized and configured for large-scale training events. * Implementing and maintaining RMF controls and STIG compliance. * Conducting vulnerability remediation and security hardening. * Providing operational support during major fleet exercises and training events. * Coordinating with engineers and operators to restore services during mission-critical events. This description outlines the general nature and scope of the role. 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