Systems Engineer

Systems Engineer - Windows Domain & Integration

We are seeking a Senior Systems Engineer responsible for the design, build, integration, and lifecycle management of Windows-based systems within complex enclave environments. This role focuses on delivering and sustaining reliable, secure, and interoperable system capabilities across Windows server infrastructure, domain services, and integrated COTS applications.

• Windows Domain Engineering & Systems Lifecycle
  • Design, build, integrate, and maintain Windows-based systems across enclave environments
  • Engineer system-level solutions spanning domain services, server infrastructure, and integrated applications
  • Support modernization and sustainment of existing systems and platforms
• Active Directory & Domain Services Administration
  • Administer and maintain Active Directory environments supporting domain‑joined systems and services
  • Engineer secure and scalable Windows Server environments supporting core services
  • Support PKI and certificate services, including certificate lifecycle management and integration with domain and application services
  • Utilize Power Shell to automate routine administrative tasks, streamline operational workflows, and support system configuration and troubleshooting activities
  • Create and maintain technical documentation including design artifacts and as‑built documentation for system designs and integrations
• Group Policy Design & Management
  • Design, implement, and maintain Group Policy Objects (GPOs) to enforce configuration and security standards
  • Troubleshoot Group Policy inheritance, replication, and application issues
  • Maintain baseline configurations for domain‑joined systems across the enclave
• Application & COTS Integration
  • Integrate and support systems within Active Directory environments, including Microsoft Exchange, Microsoft SQL Server, and Citrix environments
  • Support authentication, authorization, and service integration across diverse COTS and engineering platforms
  • Ensure interoperability between infrastructure services and mission applications, including certificate‑dependent services
• Endpoint Security & Systems Management
  • Support endpoint security configuration and policy enforcement using Trellix ePolicy Orchestrator (ePO)
  • Ensure systems comply with established security baselines and organizational requirements
  • Collaborate with security teams to support vulnerability remediation and enforcement activities
• Systems Integration & Collaboration
  • Work closely with application owners, network engineers, storage teams, and security teams to support integration across enclave systems
  • Resolve cross‑platform integration challenges spanning identity, infrastructure, and application layers
  • Support troubleshooting across interconnected systems
• Operational Support & Sustainment
  • Provide operational support as required to maintain stability of domain and server environments
  • Support incident response and infrastructure issue resolution as part of engineering ownership

• Requires a Bachelor degree and at least 8 years of experience or a Master degree and at least 6 years of experience, or at least 12 years of experience in lieu of a degree.
• Must have a TS/SCI with poly to be considered.
• Must have strong knowledge of Windows Active Directory, Group Policy and must understand WSUS and third‑party software patching.
• Integrate and support systems within Active Directory environments, including Microsoft Exchange, Microsoft SQL Server, and Citrix environments.

• Net App storage systems and SAN concepts
• Nutanix virtualization and HCI environments
• FSLogix profile/containerization in VDI environments
• Citrix virtualization and application delivery concepts
• Multi‑factor authentication platforms and identity integration patterns
• Data center replication and disaster recovery concepts (replication, failover, site resilience)
• Development and maintenance of operational runbooks and procedures

• TS/SCI with Poly
• You will be required to pass both a customer‑required and administered medical and psychological screening, as a condition of employment.

Pay Range $ - $

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.