Systems Administrator

TEKsystems; Alexandria (VA); On-site; USD 66,000 - 73,000; Full time

Job summary

TEKsystems is seeking a Windows Systems Administrator (TS/SCI Cleared) to support enterprise IT operations on-site in Alexandria, VA. The role provides Tier I/II support for Windows environments, Active Directory, and patch management, with emphasis on security, reliability, and performance of critical systems.

The ideal candidate has 4+ years of Windows experience, VMware proficiency, and SCCM/MECM experience.

Qualifications

• Active TS/SCI security clearance.
• IAT Level II certification (Security+, CySA+, SSCP, or equivalent).
• 4+ years of experience supporting Windows environments.
• Experience administering Windows Server and Windows desktop systems.
• Experience with Active Directory administration.
• Experience supporting VMware environments.
• Experience using SCCM, MECM, or similar enterprise patch management tools.
• Experience imaging and deploying workstation builds.

Responsibilities

• Provide Tier I and Tier II support for Windows-based enterprise systems.
• Administer and maintain Windows Server and Windows desktop environments.
• Manage user accounts, permissions, group policies, and authentication services within Active Directory.
• Install, test, and deploy operating system updates, security patches, and software upgrades.
• Support server operations, performance monitoring, and system maintenance activities.
• Utilize patch management and software deployment tools such as SCCM or MECM.
• Image, configure, and deploy workstation builds.
• Perform backup and recovery operations and support disaster recovery processes.
• Troubleshoot and resolve server, workstation, and infrastructure issues.
• Maintain technical documentation, standard operating procedures, and configuration records.
• Participate in change management and configuration management activities.
• Support continuity of operations requirements and occasional after-hours support activities.
• Work closely with engineering and security teams to maintain compliance with established security standards and policies.

Skills

TS/SCI clearance

IAT Level II certification

Windows environments

VMware environments

PowerShell scripting

Tools

SCCM/MECM

Job description

Windows Systems Administrator (TS/SCI Cleared)

Location: Alexandria, VA

Work Arrangement: 100% Onsite

Clearance Required: Active TS/SCI

Overview

We are seeking a Windows Systems Administrator to support enterprise IT operations within a secure environment. This individual will provide Tier I and Tier II systems administration support, maintain critical infrastructure, and ensure the availability, security, and performance of Windows-based systems and applications.

The ideal candidate has experience supporting Windows Server environments, virtualization technologies, Active Directory, and enterprise patch management solutions.

Responsibilities

• Provide Tier I and Tier II support for Windows-based enterprise systems.
• Administer and maintain Windows Server and Windows desktop environments.
• Manage user accounts, permissions, group policies, and authentication services within Active Directory.
• Install, test, and deploy operating system updates, security patches, and software upgrades.
• Support server operations, performance monitoring, and system maintenance activities.
• Utilize patch management and software deployment tools such as SCCM or MECM.
• Image, configure, and deploy workstation builds.
• Perform backup and recovery operations and support disaster recovery processes.
• Troubleshoot and resolve server, workstation, and infrastructure issues.
• Maintain technical documentation, standard operating procedures, and configuration records.
• Participate in change management and configuration management activities.
• Support continuity of operations requirements and occasional after-hours support activities.
• Work closely with engineering and security teams to maintain compliance with established security standards and policies.

Required Qualifications

• Active TS/SCI security clearance.
• IAT Level II certification (Security+, CySA+, SSCP, or equivalent).
• 4+ years of experience supporting Windows environments.
• Experience administering Windows Server and Windows desktop systems.
• Experience with Active Directory administration.
• Experience supporting VMware environments.
• Experience using SCCM, MECM, or similar enterprise patch management tools.
• Experience imaging and deploying workstation builds.
• Strong troubleshooting and problem-solving skills.

Preferred Qualifications

• PowerShell scripting experience.
• Experience working with STIGs and security compliance requirements.
• Knowledge of Virtual Desktop Infrastructure (VDI) environments.
• Familiarity with ITIL-based processes.
• Backup and recovery experience.
• Strong written and verbal communication skills.

Technical Environment

• Windows Server
• Windows 10 / Windows 11
• Active Directory
• VMware
• SCCM / MECM
• PowerShell
• STIG Compliance
• VDI
• Backup & Recovery Technologies
• ITIL-Based Operations

What We're Looking For

Successful candidates will have a strong systems administration background, experience supporting secure enterprise environments, and the ability to work independently while collaborating across IT and security teams. This role is ideal for someone who enjoys hands‑on administration, troubleshooting complex issues, and supporting mission‑critical systems.

Job Type & Location

This is a Contract position based out of Alexandria, VA.

Pay And Benefits

The pay range for this position is $48.07 - $52.88/hr.

Individual compensation offered for this position within this range will depend on many factors, including qualifications, skills, relevant experience, job knowledge, geographic location, internal equity, and other pertinent job‑related factors.

Eligibility requirements apply to some benefits and may depend on your job classification and length of employment. Benefits are subject to change and may be subject to specific elections, plan, or program terms. If eligible, the benefits available for this temporary role may include the following: Medical, dental & vision Critical Illness, Accident, and Hospital 401(k) Retirement Plan Pre-tax and Roth post-tax contributions available Life Insurance (Voluntary Life & AD&DD for the employee and dependents) Short and long-term disability Health Spending Account (HSA) Transportation benefits Employee Assistance Program Time Off/Leave (PTO, Vacation or Sick Leave)

Job Type & Location

This is a Contract position based out of Alexandria, VA.

Application Deadline

This position is anticipated to close on Nov 17, 2026.

Workplace Type

This is a fully onsite position in Alexandria,VA.

The company is an equal opportunity employer and will consider all applications without regards to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

The company is an equal opportunity employer and will consider all applications without regard to race, sex, age, color, religion, national origin, veteran status, disability, sexual orientation, gender identity, genetic information or any characteristic protected by law.

San Francisco Fair Chance Ordinance: Pursuant to the San Francisco Fair Chance Ordinance, for all positions located in the city and county of San Francisco, we will consider for employment qualified applicants with arrest and conviction records.

Massachusetts Lie Detector: It is unlawful in Massachusetts to require or administer a lie detector test as a condition of employment or continued employment. An employer who violates this law shall be subject to criminal penalties and civil liability.

Use of Artificial Intelligence (AI): We may use Artificial Intelligence (AI) to support parts of our hiring process, including sourcing, screening, and evaluating candidates. AI helps assess applications and qualifications, but final decisions are made by our hiring team. By applying, you acknowledge and agree that your application may be reviewed using AI tools.