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Sr Windows Administrator Jobs (NOW HIRING)

Astrion

Sr. Windows Systems Administrator

Columbia, MD · On-site

$145K - $165K/yr

Overview Senior Windows Systems Administrator LOCATION: Columbia, MD (Onsite) JOB STATUS: Full-time CLEARANCE: Active Top Secret / TS/SCI (Required) TRAVEL: Less than 10% SALARY RANGE: $145k - $165k ...

Astrion

Sr. Windows Systems Administrator

Columbia, MD · On-site

$145K - $165K/yr

Overview Senior Windows Systems Administrator LOCATION: Columbia, MD (Onsite) JOB STATUS: Full-time CLEARANCE: Active Top Secret / TS/SCI (Required) TRAVEL: Less than 10% SALARY RANGE: $145k - $165k ...

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Sr Windows Administrator information

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How much do sr windows administrator jobs pay per hour?

As of Sep 8, 2026, the average hourly pay for sr windows administrator in the United States is $58.37, according to ZipRecruiter salary data. Most workers in this role earn between $50.96 and $63.94 per hour, depending on experience, location, and employer.

What does a Sr Windows Administrator do?

A Sr Windows Administrator is responsible for managing and maintaining Windows-based servers and systems within an organization. Their duties include installing, configuring, and troubleshooting Windows servers, ensuring system security, managing user accounts, and performing regular backups. They also oversee software updates and patches, monitor system performance, and provide technical support to end users. Senior administrators may also design and implement system policies and procedures to optimize IT infrastructure. Their expertise ensures the reliability, security, and efficiency of an organization's IT environment.

What are the key skills and qualifications needed to thrive as a Sr Windows Administrator, and why are they important?

To thrive as a Sr Windows Administrator, you need deep expertise in Windows Server environments, Active Directory, and networking concepts, typically backed by a bachelor's degree in IT or related field. Proficiency with tools like PowerShell, virtualization platforms (e.g., Hyper-V, VMware), and certifications such as Microsoft Certified: Windows Server or Azure Administrator are highly valuable. Strong problem-solving abilities, attention to detail, and effective communication skills help you excel in this role. These skills and qualities are crucial for ensuring system reliability, security, and efficient collaboration within technical teams.

What are some common challenges faced by Sr Windows Administrators when managing large-scale enterprise environments?

Sr Windows Administrators often encounter challenges such as overseeing complex Active Directory structures, ensuring consistent patch management across hundreds or thousands of devices, and maintaining system uptime while applying critical updates. Balancing security requirements with user accessibility can also be demanding, especially in environments with diverse teams and remote users. Effective communication and collaboration with network, security, and application teams are essential to ensure seamless operations and rapid issue resolution.

What is the difference between Sr Windows Administrator vs Windows Systems Engineer?

AspectSr Windows AdministratorWindows Systems Engineer
CertificationsMicrosoft Certified: Windows Server, MCSEMicrosoft Certified: Windows Server, MCSE, or related certifications
Work EnvironmentData centers, enterprise IT teams, support rolesDesign, deployment, and optimization of Windows infrastructure
Employer & Industry UsageCorporate IT departments, government agencies, large enterprisesIT consulting firms, enterprise IT teams, cloud service providers

The main difference between a Sr Windows Administrator and a Windows Systems Engineer lies in their focus. The Sr Windows Administrator primarily manages and maintains existing Windows environments, ensuring stability and security. In contrast, the Windows Systems Engineer is more involved in designing, implementing, and optimizing Windows infrastructure. Both roles require similar certifications and often work within the same industries, but their responsibilities differ in scope and focus.

More about Sr Windows Administrator jobs

What job categories do people searching Sr Windows Administrator jobs look for?

The top searched job categories for Sr Windows Administrator jobs are:

Sr Windows Administrator jobs near you
Infographic showing various Sr Windows Administrator job openings in the United States as of August 2026, with employment types broken down into 67% Full Time, and 33% Contract. Highlights an 67% In-person, and 33% Hybrid job distribution, with an average salary of $121,416 per year, or $58.4 per hour.

Windows Administrator (Annapolis Junction, MD)

Maximus

Annapolis, MD • On-site

$43.25 - $54.25/hr

Full-time

Medical, Life, Retirement, PTO

Re-posted 2 days ago

Key responsibilities

  • Administer and maintain Windows-based server infrastructure, including installation, configuration, and patch management.

  • Monitor system performance, identify bottlenecks, and implement optimization strategies to ensure performance and reliability.

  • Create and maintain documentation related to system configurations, procedures, and SOPs.

Maximus rating

6.8

Company rating: 6.8 out of 10

Based on 302 frontline employees who took The Breakroom Quiz

303rd of 500 rated business services

Job description

General information
Job Posting Title
Windows Administrator (Annapolis Junction, MD)
Date
Friday, August 7, 2026
City
Annapolis Junction
State
MD
Country
United States
Working time
Full-time
Description & Requirements
Maximus is seeking a Senior Windows Administrator to join our team. As a Senior Windows Administrator, you will be responsible for overseeing the design, implementation, and maintenance of windows-based servers and systems. Your role will involve managing server infrastructure, troubleshooting issues, and ensuring the reliability and security of the Windows environment.
This is an onsite position in Annapolis Junction, MD, requiring five days per week onsite and an active Secret Security clearance.
Maximus TCS (Technology and Consulting Services) Internal Job Profile Code: TCS219, T3, Band 6
Job-Specific Essential Duties and Responsibilities:
- Administer and maintain Windows-based server infrastructure, including installation, configuration, and patch management
- Monitor system performance, identify bottlenecks, and implement optimization strategies to ensure performance and reliability
- Experience in Windows-based systems, such as Windows 2008/2012R2/2016R2
- Create and maintain documentation related to system configurations, procedures, and SOPs
- Ensure high availability and disaster recovery readiness by implementing appropriate backup and restoration strategies
- Install, configure, and troubleshoot the local and wide area network applications, including software development tools and operating systems
Project Minimum Requirements:
- An Active Secret Clearance is required
- 7+ years of experience in the related field
- This position requires a High School Diploma, GED, or equivalent
- This is an on-site position at a government facility in Annapolis Junction, MD.
- Requires presence on-site five days per week.
- Candidates must reside within a commutable distance.
- Participation in a rotational on-call schedule for emergency page-outs is required.
- Team player, fast learner with ability to work proactively and independently to support mission critical operations supporting geographically diverse locations.
#techjobs #clearance #veteransPage #APPCASTDTO
Minimum Requirements
TCS219, T3, Band 6
EEO Statement
Maximus is an equal opportunity employer. We evaluate qualified applicants without regard to race, color, religion, sex, age, national origin, disability, veteran status, genetic information and other legally protected characteristics.
Pay Transparency
Maximus compensation is based on various factors including but not limited to job location, a candidate's education, training, experience, expected quality and quantity of work, required travel (if any), external market and internal value analysis including seniority and merit systems, as well as internal pay alignment. Annual salary is just one component of Maximus's total compensation package. Other rewards may include short- and long-term incentives as well as program-specific awards. Additionally, Maximus provides a variety of benefits to employees, including health insurance coverage, life and disability insurance, a retirement savings plan, paid holidays and paid time off. Compensation ranges may differ based on contract value but will be commensurate with job duties and relevant work experience. An applicant's salary history will not be used in determining compensation. Maximus will comply with regulatory minimum wage rates and exempt salary thresholds in all instances.
Accommodations
Maximus provides reasonable accommodations to individuals requiring assistance during any phase of the employment process due to a disability, medical condition, or physical or mental impairment. If you require assistance at any stage of the employment process-including accessing job postings, completing assessments, or participating in interviews,-please contact People Operations at applicantaccom@maximus.com.
Minimum Salary
$
70,000.00
Maximum Salary
$
100,000.00

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