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Windows System Administrator

ManTech – Stafford, VA

Engineering, Information Technology, Design

Salary : $50000 - $70000  / YEAR

This positions requires an active DOD Secret Clearance. 

General Responsibilities: 

Work with a dynamic team comprised of Tier 1 & 2 Network Engineers and Systems Administrators 

Support networking monitoring operations across the Cyber Security Ranges and Internet Boundaries 

Support helpdesk operations 

Support service requests and route to appropriate team for action 

Coordinate with the Architecture and Engineering teams conduct installations of hardware and software 

Identify and diagnose problems affecting network performance 

Interface with customers to collect requirements 

Mentor and provide guidance to other Systems Administrators 

Provide recommendations to enhance and improve network performance 

Troubleshoot hardware and software systems as needed 2-Tier PKI Infrastructure maintenance and operation Windows Deployment Services (WDS) and image creation Active directory and GPO architecture 

Interface with vendors to address problem escalation during outages or periods of degraded system performance 

Maintain a complex range of computer components and systems 

Automation through PowerShell Scripting and desired state config (DSC) /Ansible System Center configuration manager (SCCM) maintenance and operation SQL server 2016 always-on Availability groups (AOAG) Active directory federation services (ADFS) maintenance and operation Internet information services (IIS) 10.0 maintenance and operation 

Server core and Nano server remote administration 

Provides client consulting and training on the interfacing and use of the facilities. 

Assist in the planning and coordination of major computer network initiatives. 

Conduct and oversee maintenance activities 

Utilizes monitoring, performance analysis, network management, software and hardware equipment to trouble shoot and isolate problems, gauge network performance, and trace data and protocol activity. 

Assist in devising solutions to complex operational problems within the capacity and operational limitations of installed equipment. 

Executes contingency plans for network software and hardware failures including isolated and major outages. 

Mandatory Requirements: 

Requires Bachelors degree (in IT or Computer Science, or related technical field), and 6-8 years of related experience or equivalent. 

MCSA or MCSE Certification 

Security + Certification (8570 Compliance) 

Experience with MS Office products, including Word, Excel, PowerPoint, Outlook, Visio Proficiency and knowledge with the following technologies: Windows (XP, 7, 8, 10)Windows Server (2008, 2012, 2016)VMware 6.xActive Directory DNS Exchange SQLIIS Powershell 


Bachelors Degree, Equivalent Experience Education 

ManTech International Corporation, as well as its subsidiaries proactively fulfills its role as an equal opportunity employer. We do not discriminate against any employee or applicant for employment because of race, color, sex, religion, age, sexual orientation, gender identity and expression, national origin, marital status, physical or mental disability, status as a Disabled Veteran, Recently Separated Veteran, Active Duty Wartime or Campaign Badge Veteran, Armed Forces Services Medal, or any other characteristic protected by law. 

If you require a reasonable accommodation to apply for a position with ManTech through its online applicant system, please contact ManTech's Corporate EEO Department at (703) 218-6000. ManTech is an affirmative action/equal opportunity employer - minorities, females, disabled and protected veterans are urged to apply. ManTech's utilization of any external recruitment or job placement agency is predicated upon its full compliance with our equal opportunity/affirmative action policies. ManTech does not accept resumes from unsolicited recruiting firms. We pay no fees for unsolicited services. 

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