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Sr. Windows/Linux Systems Administrator (Security Clearance required)

Company: ManTech International
Location: Chantilly
Posted on: November 11, 2018

Job Description:

Job Duties and ResponsibilitiesEntering ManTech---s 50th year, we hold the distinct honor of being named a ---Top 100 Global Technology Company--- by Thomson Reuters. We have earned this and many other accolades over the years for our dedication to serving the missions of our nation---s most important customers: U.S. Intelligence, Defense and Federal Civilian agencies. All know us as a trusted partner offering best-in-class solutions in cyber, data collection & analytics, enterprise IT, and systems and software engineering tailored to meet their specific requirements.Become an integral part of a diverse team in the Mission, Cyber and Intelligence Solutions (MCIS) Group.-- Currently, ManTech is seeking a motivated, mission oriented Sr. Windows/Linux Systems Administrator, in the Chantilly, VA area, with strong Customer relationships.-- At ManTech, you will help protect our national security while working on innovative projects that offer opportunities for advancement.The IOS Division provides mission solutions to a wide range of Defense and Intelligence Community customers. This division consists of a team of technical leaders that deliver advanced technical solutions to government organizations.-- Our customers have high standards, are technically adept, and use our products daily to support their mission of protecting national security. Our contributions to our customer---s success is driving our growth.The Sr. Windows/Linux System Administrator is a thought leader and expert responsible for design, coordination, installation, and maintenance of virtualized and stand-alone computer environments. They providing a full range of IT support services to customers proactively providing solutions and recommendation to improve customer experience and minimize negative user experiences with networks and systems they are in charge of or engage with.The Sr. Windows/Linux System Administrator is a thought leader and expert responsible for design, coordination, installation, and maintenance of virtualized and stand-alone computer environments. They providing a full range of IT support services to customers proactively providing solutions and recommendation to improve customer experience and minimize negative user experiences with networks and systems they are in charge of or engage with.The physical environment includes audio/visual capabilities including an AV network that connects computer and network end points to two primary Video wall capabilities.-- This AV network is backed by a Government network that has multiple compute, storage, and networking components.Additionally, they will be able to independently investigate and analyzes feasibility of system requirements and develops system specifications. They will recommend the design and configuration of operating systems and system applications to maximize performance and minimize system downtime.The Sr. Windows/Linux System Administrator is highly experienced in virtualized IT infrastructure management and capabilities. They demonstrate a strong understanding of System/ Network administration functions in all modern Windows Server environments and/or Linux CENTOS/RHEL and UBUNTU environments including user provision and IDAM (e.g., AD or SSSD), DNS, GPOs, hardening and auditing.A qualified candidate will also have responsibilities to engage directly with mid to senior level customers. As such, they must also possess softer client engagement expertise to manage client expectations and communicate complex actions or technologies in terms and terminology accessible to the broadest customer audience technical expert in the area of system administration for complex operating systems.He/she will work in a team environment and collaboration with other System administrators, networking administrators, and security professionals is a necessity.-- They will need to be able to interact and communicate (in writing and verbally) with teammates, stakeholders, product owners, and executives effectively and efficiently.Finally, they Identifies methods, solutions, and provides project leadership and management in order to provide a high level of service to the customers.Security Clearance Requirement:Active/current TS/SCI with CI Polygraph is required.QualificationsRequired Qualifications:---10 --- 12 years w/High School Diploma.---07-09 years w/associates or technical degree in Computer Science or related discipline.---04-06 years w/Bachelors Degree in Computer Science or related discipline.---Ten years work experience in complex systems design, programming and systems software and support.---Configuring, managing, and maintaining virtualized computer environments a specific focus on delivering hands on experience with provisioning virtual hardware, storage, resources.-- The resource should have document experience with configuration/ administration for high-availability and failover services for cloud based-- infrastructures.---Configuring and O&Ming of modern window server/desktop and Linux CENTOS/RHEL v6/7 and/or and Ubuntu OS. This includes the full stack of support services for a multi-server environment (e.g., IDAMS, Antivirus, Update, Audit, Security Scanning, etc).---Knowledge in security hardening of operating systems in a standalone environment as well as through GPOs.---Ensure all software and hardware are upgraded, legally compliant and supported.---Demonstrated experience with PKI based IDAM.---Knowledge of configuring network routers, switches and firewalls, working with VLANs, and knowledge of routing protocols.---Oversight and manage multiple security disciplines under supervision of Government program security management.---Experience with creating and deploying workstation images using automated tools.---Demonstrated experience with deploying server images using templates and/or AMIs.---Create and monitor a scheduled network back-up plan.---Research and obtain quotes for hardware/software based on customer requirements.---Provide limited support for IT asset management and property control processes in managing inventories of workstations, monitors, and other related IT infrastructure through the customers control systems.Additional Duties & Work Environment:---Communicate clearly via written and spoken English word to multiple stakeholders including peers, mid-level and senior leadership.---Lift up to 50 lbs. climb at least a 5 ft ladder, and crawl under and behind desks under 3ft to access wiring.---Work in a professional Office environment with limited government oversight.Preferred Qualifications:---Strong communication (verbal and written) and interpersonal skills dealing with employees across all levels and functions a dynamic customer centric environment.---Experience with JSON/Bash/PYTHON/PowerShell scripts would provide great benefit for automation of tasks.---Provide superior customer service; possess strong communication (verbal and written) and interpersonal skills in a dynamic customer centric environment.---Highly motivated and able to thrive in a fast-paced environment.---Displays a customer-centric attitude with a high level of energy and sense of urgency.---Strong team and collaborative orientation.---Excellent problem solving skills.---CCNP Security or equivalent CISSP.---Relevant Microsoft/Linux certifications is a big plus (e.g., Microsoft Certified Systems Administrator (MCSA) certification, Microsoft Certified Technology Specialist (MCTS), Red Hat Certified Technician).Certification Requirements:Compliant with DoD 8570 IAT Level II with at least 14 months prior to renewal (e.g. Security+ or CCNA Security certification) or candidates who can be compliant within 6 months of starting their position.DegreesEquivalent Experience/EducationBachelor's DegreeYears of Experience13-15 years w/High School Diploma07-09 years w/Bachelors Degree04-06 years w/Masters Degree

Keywords: ManTech International, Chantilly , Sr. Windows/Linux Systems Administrator (Security Clearance required), IT / Software / Systems , Chantilly, Virginia

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