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Senior Systems Administrator

MANTECH

Today
Top Secret/SCI
Unspecified
Unspecified
Engineering - Systems
Doral, FL (On-Site/Office)

ManTech is seeking a motivated, career and customer-oriented Senior Systems Administrator to join our team in Doral, FL

Responsibilities include but are not limited to:
  • Leads the maintenance, configuration, and reliable operation of complex IT infrastructure, including servers, networks, and virtualization technologies, particularly in critical or high-security environments.
  • Possesses advanced expertise in operating systems, server hardware, virtualization platforms, network infrastructure, and cybersecurity best practices.
  • Installs, configures, and upgrades intricate systems and software, optimizing performance, security, and availability.
  • Diagnoses and resolves complex hardware and software issues using advanced troubleshooting tools and techniques.
  • Develops and maintains comprehensive system documentation, including configuration guides, troubleshooting procedures, and Disaster Recovery Plans.
  • Drives the implementation of automation processes to enhance IT operational efficiency and contributes to strategic infrastructure projects.
  • Provides leadership, direction, and mentorship to subordinate Systems Administrators, fostering team growth and technical proficiency.


Minimum Qualifications:
  • BA/BS in field necessary to assume Senior Systems Administrator duties or 4 years of additional experience in lieu of a degree.
  • 9+ years of experience with 5+ years of relevant Systems Administrator III experience.
  • Proven expertise in managing and maintaining complex IT infrastructure, including operating systems (Windows Server, Linux), server hardware, and network components.
  • Advanced proficiency in virtualization technologies (e.g., VMware, Hyper-V) and strong skills in scripting and automation (e.g., PowerShell, Bash).
  • Deep understanding of system security best practices, hardening techniques, and comprehensive troubleshooting methodologies for hardware and software.
  • Familiarity with IT Service Management (ITSM) principles and practices.
  • Exceptional analytical and problem-solving abilities, with a track record of identifying root causes and implementing effective solutions for complex technical issues.
  • Ability to obtain DoD 8570.01-M IAT Level II certification within six months of starting work on the Task Order.

Desired Qualifications:
  • Master's degree in Computer Science, Information Technology, or a related field. Experience with cloud computing platforms (e.g., AWS, Azure, GCP).
  • Knowledge of containerization technologies (e.g., Docker, Kubernetes).
  • Familiarity with DevOps practices and tools. Experience with monitoring and performance tuning of systems.
  • Relevant certifications in systems administration (e.g., Microsoft Certified Solutions Expert (MCSE), Red Hat Certified Systems Administrator (RHCSA), CompTIA Server+).
  • Experience at a DoD Combatant Command (e.g., SOUTHCOM, NORTHCOM, CENTCOM, CYBERCOM, INDOPACOM, EUCOM, AFRICOM, STRATCOM, TRANSCOM, SOCOM, SPACECOM) or a component is desired.


Clearance Requirements:
  • Must have an active TS/SCI clearance


Physical Requirements:
  • Must be able to remain in a stationary position 50%
  • Constantly operates a computer and other office productivity machinery, such as a calculator, copy machine and computer printer
  • The person in this position frequently communicates with co-workers, management and customers, which may involve delivering presentations. Must be able to exchange accurate information in these situations.
group id: RTX14564a
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About Us
For over half a century, we have been where our clients are: land, sea, air, space and cyberspace. We collaborate across sectors and capabilities to deliver next-generation technology, tools, training and seasoned personnel.
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MANTECH Jobs


Clearance Level
Top Secret/SCI
Employer
MANTECH