ManTech International

Senior Systems Administrator

ManTech International$116K — $194K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 12+ years of experience with a high school diploma/GED or 8+ years with a bachelor's degree in IT or Computer Science.
  • Deep knowledge of Windows Server, Red Hat, and CentOS operating systems.
  • Expertise in VMware vSphere and virtualization technologies.
  • Skilled in scripting for automation using PowerShell, Bash, or Python.
  • Proven experience in system monitoring and implementing security measures.
  • Must maintain an 8140 IAT Level II certification, like Security+ CE or SSCP.

Responsibilities

  • Manage and uphold IT infrastructure for optimal reliability and security.
  • Install, configure, and support servers and virtual environments.
  • Document system configurations and procedures to ensure security and availability.
  • Plan and lead major tech assignments while evaluating project performance.
  • Serve as a technical expert across projects, delivering top-notch IT services.
  • Collaborate with stakeholders to ensure functional systems that exceed user expectations.

Benefits

  • Health and Life Insurance options available.
  • Paid Time Off and Holiday Pay benefits.
  • Short-term and long-term Disability coverage.
  • Retirement and Savings plan opportunities.
  • Access to Learning and Development programs and wellness initiatives.
Full Job Description
Description & Requirements

MANTECH seeks a motivated, career and customer-oriented SeniorSystems Administrator to join our team in Seattle, Washington.

Be a part of an agile team to provide innovative, customer focused, and cost-effective integrated enterprise IT support services in support of the client's vision of engineering solutions for the Nation's toughest challenges.

Responsibilities include but are not limited to:
  • Managing and maintaining the IT infrastructure to ensure reliability, performance, and security across Windows, Linux, and VMware environments.
  • Installing, configuring, and supporting servers and virtualized environments while working closely with developers and stakeholders to ensure compliance with best practices.
  • Maintaining comprehensive documentation of system configurations and procedures while ensuring maximum system security and availability.
  • Planning and leading major technology assignments and evaluating performance results to recommend changes affecting project growth.
  • Functioning as a technical expert across multiple project assignments, providing world-class IT services and responsive customer support.
  • Working with all stakeholders to ensure complete and functional systems that meet all requirements and exceed end-user expectations.


Minimum Qualifications:
  • High School Diploma/GED with 12+ years of experience, or a bachelor's degree in IT or Computer Science with 8+ years of experience in systems administration.
  • Comprehensive knowledge of relevant operating systems including Windows Server, Red Hat, and CentOS, as well as virtualization technologies like VMware vSphere.
  • Proficiency in scripting languages such as PowerShell, Bash, or Python for automation and performance tuning.
  • Experience with system monitoring, patch management, and implementing rigorous security remediations.
  • Must hold and maintain an 8140 IAT Level II compliant certification (e.g., Security+ CE, SSCP) upon hire.
  • Ability to maintain relevant technical certifications such as Microsoft Certified: Windows Server, RHCSA, or VMware Certified Professional (VCP).


Preferred Qualifications:
  • Certified Information Systems Security Professional (CISSP certification).
  • Familiarity with the USACE IT environment, regulatory requirements, and data security best practices.
  • Self-starter with excellent people skills who can communicate effectively with technical and non-technical stakeholders to drive change throughout an organization.


Clearance Requirements:
  • Must possess a Secret security clearance prior to starting this position.


Physical Requirements:
  • The person in this position must be able to remain in a stationary position 50% of the time. Occasionally move about inside the office to access file cabinets, office machinery, or to communicate with co-workers, management, and customers, via email, phone, and or virtual communication, which may involve delivering presentations.


The projected compensation range for this position is $116,400.00-$194,900.00. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, MANTECH invests in its employees beyond just compensation. MANTECH's benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, short-term and long-term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.

About ManTech International

ManTech International Corporation is an American defense contracting firm that was founded in 1968. The company provides cybersecurity, intelligence, and defense solutions to the United States Government. ManTech has over 9,000 employees and operates in 40 countries worldwide. The company's services include software development, systems engineering, and enterprise IT solutions. ManTech has been awarded numerous contracts by the U.S. Department of Defense and other government agencies.
Learn more about ManTech International
Size
9,800 employees
Market Cap
$3.7 billion
Industry
Net Income
$120.5 million
Founded
1968
5 Year Trend
+9.8%
Revenue
$2.5 billion
NASDAQ

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