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60 Mantech Windows Systems Administrator Jobs Hiring Near You

ManTech

System Administrator

Annapolis Junction, MD

$85K - $141K/yr

MANTECH seeks a motivated, career and customer-oriented System Administrator to join our team in ... Experience with ticketing systems * Experience with Windows and Linux systems * Security ...

ManTech International

Systems Administrator

Doral, FL · On-site

MANTECH seeks a motivated, career and customer-oriented Systems Administrator to join our team in Doral, FL . This position is fully on-site and utilizes a Panama Schedule which includes three, 12 ...

ManTech

Linux Systems Administrator

Chantilly, VA · On-site

$85K - $141K/yr

MANTECH seeks a motivated, mission-focused Senior Linux Systems Administrator to join our team in Chantilly, VA. As a Linux Systems Administrator, you will help maintain and enhance the Sponsor ...

MANTECH

Network Systems Administrator

El Segundo, CA · On-site

$74K - $100K/yr

MANTECH seeks a motivated, career, and customer-oriented Network System Administrator (NSA) - I to ... Install, maintain, audit, and support a secure MS Windows network environment and limited web/data ...

ManTech International

System Administrator

Annapolis, MD · On-site

$85K - $141K/yr

MANTECH seeks a motivated, career and customer-oriented System Administrator to join our team in ... Experience with ticketing systems * Experience with Windows and Linux systems * Security ...

MANTECH

Network Systems Administrator

El Segundo, CA · On-site

$74K - $100K/yr

MANTECH seeks a motivated, career, and customer-oriented Network System Administrator (NSA) - I to ... Install, maintain, audit, and support a secure MS Windows network environment and limited web/data ...

ManTech

Systems Administrator ll

Virginia Beach, VA · On-site

$89K - $148K/yr

MANTECH seeks a motivated, career and customer-oriented Systems Administrator II to join our team in Virginia Beach, VA. This position is fully on-site. Responsibilities include but are not limited ...

ManTech

Systems Administrator I

Fallon, NV · On-site

$94K - $157K/yr

MANTECH seeks a motivated, career and customer-oriented Fallon Range Training Complex (FRTC) Systems Administrator I to join our team in Naval Air Station (NAS) Fallon, NV. This position is on-site 5 ...

ManTech International

Systems Administrator I

Fallon, NV · On-site

$94K - $157K/yr

MANTECH seeks a motivated, career and customer-oriented Fallon Range Training Complex (FRTC) Systems Administrator I to join our team in Naval Air Station (NAS) Fallon, NV. This position is on-site 5 ...

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ManTech Jobs Information

Do workers at ManTech get paid breaks?

Yes. Most people get paid breaks.
100% of people say they get paid breaks.
Based on data from 8 people who took the Breakroom Quiz between December 2024 and June 2026.

Does ManTech pay people when they’re sick?

Sometimes. Only some people get paid when they’re sick.
50% of people say they wouldn’t get paid if they were sick but scheduled to work.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and August 2026.

At ManTech, are sick days and vacation days separate paid time off?

Only some people have separate paid time off for sick days and vacation.
50% of people say they have to use vacation days when they’re out sick.
Based on data from 12 people who took the Breakroom Quiz between June 2025 and August 2026.

Is the health insurance from ManTech affordable enough for their workers?

Most people say the health insurance costs are okay.
86% of people say the health insurance costs are okay
Based on data from 7 people who took the Breakroom Quiz between March 2025 and August 2026.

Do people get paid time off at ManTech?

Most people get paid time off work.
100% of people say they get paid time off.
Based on data from 12 people who took the Breakroom Quiz between June 2025 and August 2026.

How far ahead of time do people find out their work schedule?

Most people find out their schedule less than four weeks ahead of time.
  • 80% of people with changing schedules find out their shifts one week or less ahead of time.
  • 20% of people with changing schedules find out their shifts two weeks ahead of time.
  • 0% of people with changing schedules find out their shifts three weeks ahead of time.
  • 0% of people with changing schedules find out their shifts four weeks or more ahead of time.

Based on data from 5 people who took the Breakroom Quiz between March 2025 and March 2026.

Do workers at ManTech worry about hours?

Most people don’t worry about getting enough hours.
100% of people report they don’t worry about getting enough hours.
Based on data from 6 people who took the Breakroom Quiz between December 2024 and March 2026.

Do ManTech workers get to choose the shifts they work?

Some people don’t get to choose which shifts they work.
50% report that they don’t have enough control over which shifts they work.
Based on data from 6 people who took the Breakroom Quiz between December 2024 and March 2026.

How easy is it for ManTech workers to change shifts?

Most people find it easy to change shifts.
80% of people report that it’s easy to change shifts if they need to.
Based on data from 5 people who took the Breakroom Quiz between March 2025 and March 2026.

How easy is it to get time off at ManTech?

Most people find it easy to get time off.
100% of people report it’s easy to get time off.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and August 2026.

Do ManTech managers change schedules at the last minute?

Most managers don’t change people’s schedules at the last minute.
88% of people say their manager doesn’t change their shift schedule at the last minute.
Based on data from 8 people who took the Breakroom Quiz between December 2024 and March 2026.

Do jobs at ManTech spill into time workers aren’t paid for?

Rarely. The job doesn't usually spill into unpaid time.
25% of people report that their job takes up time that they don’t get paid for.
Based on data from 8 people who took the Breakroom Quiz between December 2024 and March 2026.

How easy is it to take sick days at ManTech?

Most people find it easy to take sick days.
100% of people report that it’s easy to take time off if they are sick.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and August 2026.

Is working at ManTech good if you’re a parent or caregiver?

Most parents and caregivers say this is a good place to work.
100% of people who care for a child or other relative report this is a good place to work.
Based on data from 7 people who took the Breakroom Quiz between December 2024 and April 2026.

Do people at ManTech feel treated with respect by their managers?

Most people feel treated with respect by their managers.
87% of people say they’re treated with respect by their managers.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people at ManTech get to take their breaks without interruption?

Most people get breaks without interruption.
79% of people report that they get to take their breaks without interruption.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and August 2026.

Is it stressful to work at ManTech?

Some people feel stressed here.
50% of people say they often feel stressed at work.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people at ManTech enjoy their jobs?

Most people enjoy their job.
80% of people report they enjoy their job.
Based on data from 10 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people at ManTech recommend working with their team?

Most people recommend working with their team.
73% of people report that they would recommend working with their immediate team to a friend.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people get enough training when they start at ManTech?

Some people didn’t get enough training when they started.
47% of people report they didn’t get enough training when they started working here.
Based on data from 15 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people get support to advance at ManTech?

Only some people are given support to advance their career here.
In the last year, 38% of people report not being given support to advance their career here.
Based on data from 13 people who took the Breakroom Quiz between December 2024 and August 2026.

Do people think ManTech’s headquarters understands what’s happening where they work?

Most people think headquarters doesn’t understand what’s happening where they work.
71% of people think that this employer’s headquarters or owners don’t have a good understanding of what’s really happening where they work.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and August 2026.

Do workers feel well informed about how ManTech is doing?

Only some people feel well informed about how the company is doing.
36% of people feel that they aren’t kept well informed about how the company is doing as a whole.
Based on data from 14 people who took the Breakroom Quiz between December 2024 and August 2026.

What other companies are hiring for Windows Systems Administrator jobs?

What are the most popular jobs at Mantech?

What are the most popular categories at Mantech?

Infographic showing various Windows Systems Administrator job openings at Mantech in the United States as of August 2026, with employment types broken down into 100% Full Time. Highlights an 91% Physical, 2% Hybrid, and 7% Remote job distribution.

System Administrator

ManTech

Annapolis Junction, MD

$85K - $141K/yr

Full-time

Medical, Life, Retirement, PTO

Re-posted 4 days ago

ManTech rating

8.8

Company rating: 8.8 out of 10

Based on 15 frontline employees who took The Breakroom Quiz

47th of 247 rated software companies

Job description

Description & Requirements
Unlock the secrets of intelligence with MANTECH! Join a dynamic team at the forefront of national security, providing advanced solutions to government intelligence agencies. Since 1968, we've been solving the toughest challenges with groundbreaking tech. Explore thrilling projects in Digital Transformation, Cybersecurity, IT, Data Analytics and Software Development. Elevate your career and make a difference. Your adventure begins now-unleash your potential with MANTECH!

MANTECH seeks a motivated, career and customer-oriented System Administrator to join our team in the Annapolis Junction, MD

Responsibilities include but are not limited to:

  • Provide support for implementation, troubleshooting and maintenance of networked and disconnected computer systems, with the ability to brief outcomes to various audiences.
  • Manage the daily activities of upgrading, installing, and configuring software and computer hardware systems to support multiple system configurations.
  • Provides Tier III engineering support to a globally distributed services team using multiple HW end points with VDI, Windows, Unix, and Cloud environments.
  • Design and document system configurations and changes, while occasionally working flexible hours to support SLAs and other deliverables.
  • Provide support to computer systems and component level Trade-Off Analysis & Analysis of Alternatives and contribute to draft presentations with results and recommendations.
  • Apply concepts and define and implement hardware and software configuration management processes and procedures, such as creating product build scripts and procedures, and integrate those scripts with the hardware and software build process.
  • Performing regular security monitoring, testing, and mitigate findings.

Basic Qualifications:

  • 3+ years of experience with a bachelor's degree or 2 more years of experience can be substituted for a bachelor's degree  
  • Experience with ticketing systems
  • Experience with Windows and Linux systems
  • Security + Certification

Preferred Qualifications:

  • Bachelor's degree in a STEM area with 5+ years of relevant experience
  • RED Hat Certification.
  • Nutanix
  • Splunk
  • Able to support 20% travel.

Clearance Requirements:

  • Active TS/SCI clearance with Poly

Physical Requirements:

  • Maintains a regular sedentary position, attends meeting both virtually and in person, constantly positions self to maintain computers in the lab, including under the desks and in the server closet and must be willing to travel as needed to support operational demands.

The projected compensation range for this position is $85,000.00-$141,600.00. 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.

MANTECH considers all qualified applicants for employment without regard to disability or veteran status or any other status protected under any federal, state, or local law or regulation.
If you need a reasonable accommodation to apply for a position with MANTECH, please email us at careers@mantech.com and provide your name and contact information.

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