Windows System Administrator (TS/SCI)

About Us

Seamless Migration is a Service-Disabled Veteran-Owned Small Business (SDVOSB) started in 2021 with the purpose of enabling businesses and organizations through automation. Our goal is to help organizations discover, implement, and maintain solutions which evolve and mature with their ever-changing business needs. We believe in applying agile methodologies in all aspects of our business practices and use these methods to ensure effective results for our clients.

Seamless Migration is seeking a career and customer-oriented Windows System Administrator, to join our team in Springfield, VA

Clearance

• Active Top Secret clearance with SCI eligibility (existing clearance required to start)
• Ability to obtain and maintain a Counterintelligence (CI) Polygraph

Location

• Springfield, VA

Overview

• Install, configure, and maintain Windows Server operating systems and enterprise services, including Active Directory, DNS, DHCP, Group Policy, and file/print services
• Monitor, patch, and remediate vulnerabilities across Windows Server environments using enterprise management tools (e.g., MECM/SCCM, WSUS, or equivalent)
• Administer and maintain user accounts, permissions, and access controls in accordance with security policies and STIG compliance requirements
• Develop and maintain PowerShell scripts to automate administrative tasks and enhance operational efficiency
• Troubleshoot performance issues, perform root cause analysis, and implement corrective actions for Windows-based systems and dependent applications
• Maintain and utilize system monitoring tools such as SolarWinds or equivalent to analyze performance and proactively address potential concerns
• Create and maintain technical documentation including standard operating procedures, workflows, diagrams, and system baselines
• Support change management by drafting and reviewing requests for change (RFC) and implementing approved modifications within maintenance windows
• Collaborate with cybersecurity and engineering teams to ensure systems are hardened and compliant with DoD and IC standards
• Provide escalation support for complex system issues and mentor junior administrators as needed

Qualifications

• 5 or more years of progressive, hands-on experience maintaining enterprise Windows Server environments
• Certifications (one of the following): CompTIA Security+ CE, GIAC Security Essentials Certification (GSEC), or Systems Security Certified Practitioner (SSCP)
• Deep understanding of Windows Server architecture, Active Directory design, and Group Policy management
• Experience with enterprise patching, configuration management, and compliance tools (e.g., MECM/SCCM, WSUS, Ivanti)
• Skilled in PowerShell scripting for automation and system administration
• Strong understanding of system hardening and Security Technical Implementation Guides (STIGs)
• Familiarity with virtualization platforms such as VMware or Nutanix
• Excellent communication skills, with the ability to articulate technical concepts to both technical and non-technical audiences
• Meets the minimum credential requirements for a Cyber IT/Cybersecurity Workforce (CSWF) position as defined in Section 6, Table 3. System Administrator (451); Intermediate Level for SECNAV M-5239.2 compliance

Nice To Have

• Experience with Microsoft 365, Azure AD, or hybrid identity management
• Knowledge of backup and disaster recovery solutions (e.g., Veeam, Commvault)
• Understanding of ServiceNow ITSM for incident, change, and configuration management
• Exposure to DevSecOps environments and automation pipelines

Benefits

• 100% paid Medical, Dental & Vision for Our Employee
• 6% 401K match (Vested Immediately)
• 29 Days' PTO
• Flexible Work Schedule
• Tuition/Certification Reimbursement
• Growth Opportunities w/in an Emerging Defense Company

*All your information will be kept confidential according to EEO guidelines