Junior Windows System Engineer

Cornerstone Defense LLC

Reston (VA)

On-site

USD 70,000 - 90,000

Full time

14 days+

Get more replies from employers

Send a job-specific resume in minutes.

Benefits offered by this job

Medical, Dental and Vision Plans

Generous PTO Policy

401(k)

HSA and FSA options

Life and Disability Insurance

Tuition Reimbursement and Training

Perks at Work Discount Program

Referral Program

Leads Generation Program

CollegeAmerica 529 plan

Fitness Reimbursement Program

Travel Assistance

Norton Lifelock Benefit Solutions

Life Planning Financial & Legal Services

Job summary

Cornerstone Defense LLC is seeking a Junior Windows Systems Engineer in Reston, Virginia. This position supports configuration, deployment, and maintenance of Windows systems in a secure environment. Collaboration with the DevOps team is essential for system installation and performance monitoring.

The ideal candidate will have experience with Microsoft Windows Server environments, Active Directory, and cloud deployments like AWS. Benefits include medical plans, 401(k), and a generous PTO policy.

Qualifications

Experience configuring and maintaining Windows-based systems in a secure environment.
Strong understanding of IT best practices in high-availability environments.
Ability to work collaboratively in a team-oriented environment.

Responsibilities

Support configuration, deployment, and maintenance of Windows systems.
Work closely with DevOps team on system installation and patching.
Respond to user incidents and provide Tier II-level troubleshooting.

Skills

Microsoft Windows Server support

Active Directory

Group Policy

Basic PowerShell scripting

AWS support

Troubleshooting skills

Communication skills

Education

Bachelor’s degree in Computer Science, Information Systems, or related field

Job description

Windows Systems Engineer

Springfield, VA

Active TS/SCI with CI Polygraph

The Junior Windows Systems Engineer supports the configuration, deployment, and maintenance of Windows-based systems within a secure, mission-critical environment. This role works closely with the DevOps team and senior engineers to assist in system installation, patching, and performance monitoring across classified networks. Responsibilities include managing day-to-day Windows operations, monitoring system performance, and identifying potential issues to maintain consistent uptime and efficiency. The engineer will respond to user incidents, provide Tier II-level troubleshooting, and document resolutions to ensure repeatable and efficient processes.

Additional duties include maintaining accurate records of system performance metrics, assisting with Active Directory and Group Policy management, and supporting cloud-integrated environments such as AWS. The role also contributes to developing user training materials and onboarding documentation for new personnel.

Required Experience

Experience supporting Microsoft Windows Server and workstation environments, including patching, imaging, and configuration management.
Familiarity with Active Directory, Group Policy, and basic PowerShell scripting.
Experience supporting AWS or hybrid Windows-to-cloud deployments.
Understanding of IT best practices in high-availability, security-sensitive environments.
Strong troubleshooting, documentation, and communication skills with the ability to explain technical issues clearly.
Proven ability to work collaboratively in a team-oriented, matrixed environment.
Active Security+ certification.

Desired Experience

Bachelor’s degree in Computer Science, Information Systems, or related field.
Familiarity with federal IT environments, acquisition processes, or government contracting operations.
Exposure to DoD or Intelligence Community systems and related compliance standards (e.g., DISA STIGs).

Benefits