Senior Microsoft Windows OS Engineer (REMOTE)

Job ID: 111951
Location: Reston , Virginia  [On-Site]
Category: App/Dev
Employment Type: Contract
Date Added: 01/30/2026
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Role Summary

This position requires a highly skilled Senior Microsoft Windows OS Engineer to support and optimize Windows operating systems within an enterprise environment. The role involves diagnosing complex technical issues, improving system performance, and implementing remediations to enhance end-user experience. The engineer will collaborate with various IT teams and contribute to troubleshooting efforts, ensuring stable and secure Windows platforms across multiple devices.

Responsibilities

  • Evaluate endpoint analytics and Windows event/log data to identify workstation performance concerns and incident drivers.
  • Investigate and diagnose root causes of Windows-related issues, including operating system errors, software installation problems, network connectivity issues, and third-party application conflicts.
  • Develop and implement solutions to remediate identified Windows performance issues.
  • Monitor system performance using advanced profiling and monitoring tools such as Microsoft Performance Toolkit, ProcMon, PerfMon, Fiddler, Sysinternals, WinDBG, and Wireshark.
  • Collaborate with IT teams to troubleshoot and resolve complex technical problems related to hardware, software, network, and security.
  • Manage Windows updates, service packs, and patches, ensuring proper installation and troubleshooting.
  • Automate routine tasks and streamline diagnostics using PowerShell scripting and command-line interfaces.
  • Maintain documentation of system infrastructure, configurations, and remediation activities.
  • Support virtualization environments such as Hyper-V and VMware, including virtual machine setup and management.
  • Stay current on emerging technologies and security practices related to Windows OS management.

Qualifications

  • Minimum of thirteen (13) to twenty (20) years of relevant experience in Windows operating systems and enterprise IT environments.
  • Extensive knowledge of Windows OS architecture, features, and functionalities.
  • Proven ability to install, configure, and troubleshoot Windows 10/11 and server operating systems.
  • Strong understanding of network protocols, including TCP/IP, DNS, DHCP, VPN, and security protocols.
  • Proficiency with Active Directory, Group Policy, and domain management.
  • Experience with PowerShell scripting, WMI, and automation of system diagnostics.
  • Familiarity with performance monitoring and analysis tools.
  • Excellent problem-solving skills with the ability to address complex technical issues across hardware, software, and network domains.
  • Strong communication skills and ability to work independently or within a team. 
  • Must be legally authorized to work in the United States without employer sponsorship, now or in the future.
  • Desired: prior SME experience at Microsoft and knowledge of virtualization technologies.

Publishing Pay Range: $54.00-$57.00 hourly

This position is based in office and requires employee to work on-site.

About GDH:
At GDH, we believe in the power of people and the importance of caring. Our culture statement, “We care about people,” isn’t just a tagline – it’s the core of everything we do. GDH is a premier staffing and talent solutions company dedicated to helping businesses find the best talent and assisting job seekers in finding their dream jobs.

Who We Are:
GDH, founded in 2001, has grown into a leader in providing staffing solutions across various industries. We specialize in IT across several sectors, connecting top talent with leading enterprises. As a Best of Staffing firm recognized for excellence in client, employee, talent, and women’s services, we pride ourselves on our commitment to quality and service.

GDH Benefits

GDH offers a range of employee benefits that are designed to promote well-being and help maintain a healthy work-life balance. These comprehensive benefits cover various aspects of an employee’s life and aim to enhance their overall experience with the company. Our health benefits include three medical insurance options with access to KISx Card, Zero Card, and HealthJoy concierge services. Other plan offerings include dental, vision, life, disability, supplemental insurance, and pet insurance plans. Enjoy additional perks like holiday pay, 401(k) plan, direct deposit, an employee referral program, work-life balance benefits, a Wellbeats membership, a discounted gym membership program, and more!  For more detailed information on benefits, please go to GDH’s website under the tab for candidates.

GDH provides equal employment opportunities (EEO) to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, gender, sex (including pregnancy), sexual orientation, gender identity, national origin, age, disability, genetic information, marital status, ancestry, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable federal, state, and local laws. Applicants with disabilities who require an accommodation or assistance in applying and/or for interviewing, please contact our HR Department.

Please visit our notice of collection for California applicants.

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