Systems Engineer

Leidos•Chantilly, VA

1d•$107,900 - $195,050•Onsite

About The Position

Leidos Intelligence Group uses a wide range of capabilities in Digital Modernization, Mission Software Systems, and enabling technologies like Artificial Intelligence and Machine Learning to support our customers’ mission to defend against evolving threats around the world. Our team’s focus is ensuring our intelligence customers have the right tools, technologies, and tactics to keep pace with an ever-evolving security landscape and succeed in their pursuit to protect people and critical assets. 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. The position centers on Windows domain engineering, including Active Directory administration, Group Policy architecture, and integration of core services such as Citrix, Microsoft Exchange, and Microsoft SQL Server. The role also includes support for endpoint security enforcement using Trellix ePolicy Orchestrator (ePO), as well as certificate and PKI services that support authentication and secure communications across systems. This environment consists of multiple independent systems and domains supporting a wide range of COTS and engineering applications. These may include collaboration and workflow tools (such as Jira, Confluence, and SharePoint) as well as engineering platforms (such as SolidWorks and MATLAB). Deep expertise in any single application is not required; success in this role depends on the ability to integrate and sustain interoperability across diverse systems. The role requires strong engineering discipline, the ability to manage multiple concurrent efforts, and the flexibility to support both design and operational activities as needed.

Requirements

Requires a Bachelor degree and at least 8 years of experience or Master and at least 6 years of experience OR at least 12 years of experience in lieu of 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

Nice To Haves

NetApp 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

Responsibilities

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
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 PowerShell 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
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
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
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
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
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