System Administrator 3

M.C. Dean, Inc•Charleston, SC

13h

About The Position

M.C. Dean is hiring a System Administrator 3 to support and maintain Windows-based systems and security infrastructure. The role includes administering operating systems, Active Directory, virtual environments, desktop infrastructure, databases, storage platforms, and third-party applications; ensuring compliance through vulnerability remediation, patching, and STIG implementation; and resolving escalated technical issues. The administrator will assess infrastructure needs, recommend improvements and emerging technologies, develop implementation and testing plans, create technical documentation, and train users and support personnel. The position requires minimal direct supervision, reliable attendance at the customer site during required work hours, and travel of up to 25% annually to CONUS and OCONUS locations. Applicants selected will be subject to a government security investigation and may need to meet eligibility requirements, including U.S. citizenship, for access to classified information. The role requires the ability to obtain and maintain a Top Secret clearance. Candidates must meet one of the stated education and progressive experience combinations and have at least five years of experience programming or administering Physical Access Control Systems. A minimum Security+ certification, CASP, or CISSP is required. The position may involve flexible shifts, including nights, weekends, holidays, and on-call work as needed. M.C. Dean describes its work environment as collaborative and focused on engineering innovation, agility, expertise, and trust. The company offers professional and technical training, leadership training, tuition reimbursement, and communication with senior leadership and local office management. The position also includes an excellent benefits package.

Requirements

Bachelor's degree and at least 5 years of progressive experience, or an associate degree and at least 8 years of progressive experience, or a high school diploma or equivalent and at least 10 years of progressive experience.
At least 5 years of experience programming or administering Physical Access Control Systems.
System administrator experience triaging and resolving system problems, analyzing system data to prevent problems, implementing new workstations, and implementing system extensions.
Ability to obtain and maintain a Top Secret clearance; applicants may need to meet eligibility requirements, including U.S. citizenship, for access to classified information.
Demonstrated experience effectively managing small teams.
Demonstrated understanding of Windows patching and vulnerability remediation.
Advanced knowledge of Windows Active Directory hierarchy and implementation.
Basic knowledge of large-scale networking, VLANs, and routing.
Reliable attendance at the customer site during customer-required work hours.
Ability to work flexible shifts that include nights, weekends, holidays, and on-call work as needed.
At least one of the following certifications: Security+, CASP, or CISSP.
Background working with multidisciplinary teams.
Time-management and organizational skills to meet deadlines and quality objectives.
Proficiency in MS Excel, Word, Visio, and PowerPoint.
Willingness to travel up to 25% annually to CONUS and OCONUS locations.

Responsibilities

Configure and manage Windows operating systems and install or load operating system software.
Set up desktop hardware and operating systems, load imaging software, and update antivirus software.
Analyze security system infrastructure performance and recommend improvements.
Troubleshoot and maintain system integrity, configure components, and implement operating-system enhancements to improve reliability and performance.
Provide detailed analysis and feedback to agency management and internal customers on escalated tickets.
Perform IAVA updates and patching to comply with Information Assurance standards.
Apply STIGs to Windows-based servers and workstations.
Implement and maintain enterprise Windows Active Directory architectures.
Perform daily operations, including Active Directory management and monitoring and reviewing system logs.
Configure and maintain virtual hypervisors, including VMware and Hypervisor.
Deploy, configure, and maintain VDI platforms, including Citrix Xen Desktop.
Install, configure, and maintain third-party applications.
Install, configure, and maintain highly available SQL database engines.
Deploy and maintain storage platforms similar to Dell EqualLogic and Dell Powervault.
Analyze future deployment requirements and recommend the hardware and software needed for IT infrastructure.
Perform root-cause analysis on significant issues across all support tiers.
Perform preventive maintenance, including system backups, error-log reviews, database-size analysis, and integrity checks.
Develop system and application implementation plans, including testing procedures, to ensure operational reliability.
Stay current with technological developments and recommend ways to use emerging technology.
Create technical documentation, such as SOPs and as-builts, for technical and non-technical audiences.
Train system users and other system support personnel as needed.
Perform duties with minimal direct supervision.