Senior Systems Administrator (Directory Services)
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Job Location:
Washington, AR - USA
Monthly Salary:
$ 112000 - 179000
Posted on:
15 hours ago
Vacancies:
1 Vacancy
Job Summary
Responsibilities
We are seeking an experienced Senior Systems Administrator Directory Services to lead the design administration and optimization of enterprise directory and identity platforms. This role requires deep expertise in Microsoft Active Directory hybrid identity architectures and secure authentication services across complex multidomain environments. The ideal candidate will drive modernization efforts strengthen identity security and ensure the reliability and integrity of core directory services.
Key Responsibilities
Directory Architecture & Administration
- Design administer and support enterprise directory services (Active Directory Entra ID/Azure AD LDAP).
- Manage domain controllers DNS DHCP trusts sites subnets and replication topology.
- Lead directory upgrades forest/domain migrations consolidations and restructuring efforts.
- Design and maintain forest/domain trusts and crossplatform identity integrations.
Identity & Access Management
- Implement and maintain IAM policies authentication standards and access controls.
- Support hybrid identity solutions including AAD Connect federation services and SSO integrations.
- Integrate directory services with enterprise applications SaaS platforms and security tools.
Security Hardening & Compliance
- Implement advanced security measures to protect directory services (tiering models delegation privileged access controls).
- Monitor directory health performance and security posture.
- Support compliance initiatives and audits (NIST DoD CIS etc.).
- Ensure adherence to identity governance and leastprivilege principles.
Operations & Troubleshooting
- Diagnose and resolve complex authentication authorization replication and GPO issues.
- Maintain optimal performance and stability of domain controllers and supporting infrastructure.
- Develop and maintain documentation standards and operational procedures.
- Collaborate closely with security networking cloud and application teams.
Qualifications
Required Qualifications:
- Bachelors degree in information technology or related field and 8 years of experience. 4 years of additional experience may be substituted in lieu of a degree.
- 7 years of systems administration experience with a focus on directory services.
- Deep expertise in Microsoft Active Directory (multidomain multiforest environments).
- Strong experience with Azure AD/Entra ID and hybrid identity architectures.
- Proficiency with Group Policy PowerShell and automation frameworks.
- DoD 8140 IAT Level II certification (e.g. Security).
- Active TS/SCI clearance.
Desired Qualifications:
- Microsoft certifications (e.g. Microsoft 365 Certified Identity and Access Administrator Windows Server Hybrid Administrator).
- Experience with identity governance privileged access management (PAM) or Zero Trust architectures.
- Familiarity with federation services (ADFS) Kerberos SAML OAuth and modern authentication protocols.
Peraton Overview
Peraton is a next-generation national security company that drives missions of consequence spanning the globe and extending to the farthest reaches of the galaxy. As the worlds leading mission capability integrator and transformative enterprise IT provider we deliver trusted highly differentiated solutions and technologies to protect our nation and allies. Peraton operates at the critical nexus between traditional and nontraditional threats across all domains: land sea space air and cyberspace. The company serves as a valued partner to essential government agencies and supports every branch of the U.S. armed forces. Each day our employees do the cant be done by solving the most daunting challenges facing our customers. Visit to learn how were keeping people around the world safe and secure.
Target Salary Range
EEO
Required Experience:
Director
Key Skills
- Computer Science
- Active Directory
- Computer information Technology
- PowerShell
- OS
- Windows
- Database
- SCCM
- Linux
- SAN
- Troubleshoot
- Backup
- Setup
- Technical Support
- UNIX
About Company
Peraton provides innovative solutions for the most sensitive and critical programs in government today, developed and executed by scientists, engineers, and other experts.
