Senior Systems Administrator

StratasCorp; Quantico (VA); On-site; USD 90,000 - 100,000; Full time

Job summary

StratasCorp in Quantico, VA seeks an experienced Senior System Administrator to support enterprise directory and messaging services, including Active Directory and Exchange. The role provides Tier II support and system administration for Windows Server environments in a secure government setting.

The ideal candidate will have extensive experience with directory services, user account administration, and monitoring in a DoD context, with Top Secret clearance and IAT III certification.

Qualifications

• Minimum of 10 years of overall IT experience.
• At least 6 years of hands-on experience supporting Microsoft Active Directory and/or Exchange environments.
• Demonstrated experience with directory services, messaging systems, and account administration.
• Experience with Windows Server administration and troubleshooting.
• Experience resolving Tier II technical issues through Remedy or other ITSM platforms.
• Familiarity with virtualization technologies, event monitoring, and enterprise infrastructure support.
• Active Top Secret Security Clearance.
• IAT Level III certification meeting applicable DoD 8140 requirements.

Responsibilities

• Manage, administer, maintain, and troubleshoot enterprise directory and messaging services, including AD, Exchange, ADAM, and GAL.
• Perform user account administration, access management, and operational support.
• Monitor, maintain, and support directory and messaging systems to ensure availability and operational effectiveness.
• Troubleshoot, investigate, and resolve Tier II technical issues and Remedy/ITSM service tickets.
• Perform Windows Server administration, maintenance, and troubleshooting.
• Support enterprise virtualization environments and related infrastructure.
• Monitor system events, identify potential issues, and implement corrective actions.
• Provide technical support for enterprise directory, messaging, and associated services.
• Maintain system integrity, availability, and compliance with applicable security requirements.
• Document troubleshooting activities, system changes, and issue resolutions.

Skills

Active Directory

Microsoft Exchange

ADAM

Global Address List (GAL)

Windows Server

Remedy / ITSM

Virtualization

Account administration

Troubleshooting

Education

High School Diploma or equivalent

Job description

At StratasCorp, our mission strives to put employees first while still being recognized as a leader in the Department of Defense Information Technology sector. We believe in a continuing pursuit of customer satisfaction and operational excellence while exceling in service innovation. We are looking for employees who value corporate culture, leadership, diversity, and commitment to quality, because we are #TeamStratas.

Our team in Quantico, VA is seeking an experienced Senior System Administrator to support the operation, maintenance, troubleshooting, and administration of enterprise directory and messaging services. This position will provide Tier II technical support and system administration for Microsoft Active Directory, Exchange, ADAM, Global Address List (GAL), and related Windows Server environments.

The ideal candidate will have extensive experience supporting enterprise directory and messaging infrastructure, performing account administration, monitoring system performance, and resolving technical issues in a secure government environment.

Location: Quantico, VA

Schedule: Sunday-Wednesday, 2:00 PM-12:00 AM (4x10 schedule)

Clearance: Active Top Secret Clearance

Certification: IAT Level III

Education: High School Diploma or equivalent

Job Type: Full-time

Key Responsibilities

• Manage, administer, maintain, and troubleshoot enterprise directory and messaging services, including:
  • Microsoft Active Directory (AD)
  • Microsoft Exchange
  • Active Directory Application Mode (ADAM)
  • Global Address List (GAL)
• Perform user account administration, access management, and operational support.
• Monitor, maintain, and support directory and messaging systems to ensure availability and operational effectiveness.
• Troubleshoot, investigate, and resolve Tier II technical issues and Remedy/ITSM service tickets.
• Perform Windows Server administration, maintenance, and troubleshooting.
• Support enterprise virtualization environments and related infrastructure.
• Monitor system events, identify potential issues, and implement corrective actions.
• Provide technical support for enterprise directory, messaging, and associated services.
• Maintain system integrity, availability, and compliance with applicable security requirements.
• Document troubleshooting activities, system changes, and issue resolutions.

Required Qualifications

• High school diploma or equivalent.
• Minimum of 10 years of overall IT experience.
• At least 6 years of hands‑on experience supporting Microsoft Active Directory and/or Exchange environments.
• Demonstrated experience with directory services, messaging systems, and account administration.
• Experience with Windows Server administration and troubleshooting.
• Experience resolving Tier II technical issues through Remedy or other ITSM platforms.
• Familiarity with virtualization technologies, event monitoring, and enterprise infrastructure support.
• Active Top Secret Security Clearance.
• IAT Level III certification meeting applicable DoD 8140 requirements.

The anticipated salary range for this role is between $90,000 - $100,000. The anticipated salary for this position is provided in accordance with applicable pay transparency laws. The final starting salary will be determined based on a variety of job‑related factors, including the selected candidate's qualifications, skills, relevant experience, education, certifications, and work location (where applicable), as well as internal equity and market considerations.

We use E-Verify to confirm the identity and employment eligibility of all new hires.

StratasCorp provides a complete compensation package with competitive wages and benefits that include medical, dental, and vision insurance, FSA & HSA accounts, disability and other income protection benefits, life insurance, paid personal time‑off benefits, paid holidays, and a 401K Saving Plan with a company matching contribution.

StratasCorp is committed to equal opportunity in employment, actively seeking to build a diverse and talented workforce, including individuals with disabilities and protected veterans.