> Markdown version of [/jobs/ext/2222514-system-administrator-3-charleston-sc](https://www.wearedevelopers.com/jobs/ext/2222514-system-administrator-3-charleston-sc). 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). --- # System Administrator 3 - Charleston, SC - **Company:** M.C. Dean, Inc. - **Location:** Charleston, SC, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Microsoft Word, Microsoft Excel, Microsoft Windows, Active Directory, Cyber Security, Databases, Desktop Virtualization, Graphics Software, Hardware Security Module, Hypervisor, Citrix XenApp, Microsoft Visio, Routing, Microsoft PowerPoint, SQL Databases, System Software, Virtual Local Area Networks, Software Vulnerability Management, Data Logging, Computer Equipment, Information Technology, Process Control Systems, Network Server, Vmware - **Published:** August 25, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9116725/system-administrator-3-charleston-sc ## About the Role This position requires onsite support at a single work location in the Washington D.C. area. Candidates must be flexible in schedule, have the ability to travel, and be able to communicate professionally with customers and coworkers. Punctuality, attendance, a willingness to learn, and an ability to work well with others are key to success in this role., Clearance/Citizen Type: Applicants selected will be subject to a government security investigation and must meet eligibility requirements, including U.S. Citizenship, for access to classified information; Active Top Secret clearance is required., + Bachelor's Degree and 5+ Years of progressive experience or + Associates Degree and 8+ Years of progressive experience or + HS Diploma or Equivalent and 10+ Years of progressive experience * Requires system administrator experience in performing triage on system problems, resolving the system problems, analyzing system data to prevent problems, implementing new workstations, and system extensions. * Requires 5 + years of experience programming/administrating Physical Access Control Systems. * Demonstrated previous experience effectively managing small teams. * Demonstrated understanding of Windows patching and vulnerability remediation. * Demonstrated advanced knowledge of Windows active directory hierarchy and implementation. * Basic knowledge of large-scale networking, VLANS and routing. * Requires reliable attendance at customer site during work hours required by customer. * Requires the ability to work flexible shifts that include nights, weekends and holidays as needed. * Requires minimum of Security + Certification, CASP, or CISSP certification. * Demonstrated background working with multidisciplinary teams. * Demonstrated time management and organization skills to meet deadlines and quality objectives. * Proficient in MS Excel, Word, Visio, and PowerPoint. Preferred Experience: * Proficiency with ACAS and HBSS and mitigation strategies * Assessment, mitgation, and closure of network vulnerabilities and vulnerability management eMASS * Applying STIGs to servers, databases, applications, and other hardware Security Readiness Review (SRR) Tools (scripts and ACAS) * Excellent understanding of the DoD RMF lifecycle and NIST 800-53 controls implementation * Awareness of NIST Special Publication 800-82, Guide to Industrial Control Systems (ICS) Security and UFC 4-010-06 Unified Facilities Criteria (UFC) Cybersecurity of Facility ## Description What you'll do: In this role you will be working as part of a team to monitor, maintain, and test Physical Access Control, CCTV, PSIM and other electronic security systems and support implementation, troubleshooting and maintenance of Information Technology (IT) systems in support of the endpoint devices. The position provides Tier 2 (Escalation) problem identification, diagnosis and resolution of problems and supports the escalation and communication of status to agency management and internal customers., * Manage physical security system support to meet service level agreements. * Configure and manage Windows operating systems and install/load operating system software. * Perform desktop hardware and operating system set-up, imaging software loading, and antivirus updates. * Analyze security system infrastructure performance and recommend improvements. * Troubleshoot, maintain integrity and configure components along with implementing operating systems enhancements to improve reliability and performance. * Provide detailed analysis and feedback to agency management and internal customers for escalated tickets. * Perform IAVA updates and patching to ensure compliance with Information Assurance (IA) standards. * Apply Security Technical Implementation Guides (STIGs) to Windows based operating systems (servers and workstations). * Implement and maintain sophisticated enterprise Windows Active Directory Architectures. * Perform daily operations to include Active Directory management, monitoring and reviewing system logs. * Configure and maintain virtual hypervisors to include VMware and Hypervisor. * Deploy, configure, and maintain Virtual Desktop Infrastructure (VDI) platforms to include Citrix Xen Desktop. * Install, configure, and maintain 3rd party applications. * Install, configure and maintain highly available SQL database Engines. * Deploy and maintain storage platforms similar to Dell EqualLogic and Dell Powervault. * Analyze requirements of future deployments and make recommendations for IT infrastructure including all hardware and software required fulfill those requirements. * Perform root cause analysis on significant issues across all tiers of support. * Perform preventive maintenance actions including system back-ups, error log reviews, database size analysis, and integrity checks. * Develop new system and application implementation plans to include testing procedures and ensuring operational reliability. * Stay current with technological developments and make recommendations for ways to take advantage of new and emerging technology. * Create technical documentation such as standard operating procedures (SOP) and as builds for both technical and non-technical audiences. * Train system users and other system support personnel as needed. * Perform all duties with minimal direct supervision., * Exposure to computer screens for an extended period of time. * Sitting for extended periods of time. * Reach by extending hands or arms in any direction. * Have finger dexterity in order to manipulate objects with fingers rather than whole hands or arms, for example, using a keyboard. * Listen to and understand information and ideas presented through spoken words and sentences. * Communicate information and ideas in speaking so others will understand. * Read and understand information and ideas presented in writing. * Apply general rules to specific problems to produce answers that make sense. * Identify and understand the speech of another person. ## Related Videos - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [Creating a routing app with Google Maps API from scratch](https://www.wearedevelopers.com/videos/831-creating-a-routing-app-with-google-maps-api-from-scratch) - [WebAssembly: The Next Frontier of Cloud Computing](https://www.wearedevelopers.com/videos/972-webassembly-the-next-frontier-of-cloud-computing) - [Security Pitfalls for Software Engineers](https://www.wearedevelopers.com/videos/726-security-pitfalls-for-software-engineers) - [Fault Tolerance and Consistency at Scale: Harnessing the Power of Distributed SQL Databases](https://www.wearedevelopers.com/videos/1146-fault-tolerance-and-consistency-at-scale-harnessing-the-power-of-distributed-sql-databases) - [A Technical Introduction to Bitcoin's 2nd Layer- The Lightning Network](https://www.wearedevelopers.com/videos/15-a-technical-introduction-to-bitcoin-s-2nd-layer-the-lightning-network) ## Related Articles - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking) - [Walking Into The Era of Supply Chain Risks](https://www.wearedevelopers.com/magazine/106-walking-into-the-era-of-supply-chain-risks) - [Events like RSAC Get You CISOs. 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