Senior Systems Administrator Position Available In Miami-Dade, Florida

Salary Not Available
Position range in Miami-Fort Lauderdale-West Palm Beach, FL Metropolitan Statistical Area $76k – $119k Per Year Senior Systems Administrator
ManTech International Corporation

Occupation:

Network and Computer Systems Administrators

Location:

Miami, FL – 33166
Positions available: 1
Job #: R61370

Source:

ManTech

Posted:

6/27/2025

Web Site:

www.mantech.com

Job Type:

Full Time (30 Hours or More) Job Requirements and Properties Help for Job Requirements and Properties. Opens a new window. Job Requirements and Properties Help for Job Requirements and Properties. Opens a new window.
Work Onsite
Full Time Schedule
Full Time
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Shape the future of defense with ManTech! Join a team dedicated to safeguarding our nation through advanced tech and innovative solutions. Since 1968, we’ve been a trusted partner to the Department of Defense, delivering cutting-edge projects that make a real impact. Dive into exciting opportunities in Cybersecurity, IT, Data Analytics and more. Propel your career forward and be part of something extraordinary. Your journey starts now—protect and innovate with ManTech! 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.

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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 administr
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