Job Description

TITLE: Sr. Systems Engineer (Citrix)LOCATION: Sterling, VA (Relocation assistance considered)CLEARANCE REQUIRED: Active TS/SCI with CI PolygraphEMPLOYMENT TYPE: Full-Time, Onsite **Multiple positions available** POSITION SUMMARYMGS is seeking a Sr. Systems Engineer (Citrix) to lead the design, deployment, and optimization of an enterprise Citrix Virtual Desktop Infrastructure (VDI) environment within a secure, cloud-native platform supporting national security missions. In this role, you will deliver scalable, high-performance virtual desktop solutions while maintaining Linux and Windows cloud-based infrastructure, COTS applications, and enterprise computing services across a DevSecOps-driven Agile environment. Working alongside engineering, cybersecurity, and mission experts, you will implement secure-by-default configurations, drive Infrastructure as Code (IaC) practices, and keep critical environments running at the highest level. RESPONSIBILITIES (not limited to):Design, deploy, and maintain Citrix Virtual Apps and Desktops (CVAD) infrastructure in a 100% cloud environment, including Delivery Controllers, StoreFront, NetScaler/ADC, and supporting components.Implement and manage Citrix Provisioning Services (PVS) or Machine Creation Services (MCS) for desktop image management; manage Virtual Delivery Agents (VDAs), hypervisors, and storage systems.Optimize VDI performance through monitoring, capacity planning, and resource allocation; configure and manage user profiles using FSLogix.Deploy, configure, and maintain Linux and Windows cloud-based infrastructure, COTS applications, and enterprise computing services as IaC and AaC.Configure IdAM, Active Directory, and LDAP resources with platform applications.Troubleshoot complex technical issues across the VDI and infrastructure stack using log file analysis and root-cause analysis.Develop and execute comprehensive test plans; prepare and maintain technical documentation including user guides, infrastructure diagrams, and operational procedures.Collaborate with engineering teams and end-users to design and maintain application interfaces and platform solutions.Develop within an Agile scrum team following DevSecOps principles and configuration management standards.Prepare technical presentations for government and senior leadership. REQUIRED SKILLS AND QUALIFICATIONSMust possess an active DoD TS/SCI security clearance with CI Polygraph.Must meet DoD 8140 requirements, including Security+ CE certification.Bachelor's or master's degree in a STEM field. Experience may be acceptable in lieu of a degree.10+ years of experience deploying and maintaining platform infrastructure and COTS applications in cloud-based environments.5+ years of hands-on experience with Citrix Virtual Apps and Desktops, including expert knowledge of Citrix architecture, components, and deployment methodologies.Experience with hypervisor platforms including VMware vSphere, Microsoft Hyper-V, or Citrix Hypervisor.Proficiency with Citrix NetScaler/ADC configuration and management.Strong experience with Windows Server administration and Active Directory.Experience with cloud architecture, system design, and enterprise workflow or automation platform integration.Experience supporting IdAM technologies including Active Directory, SAML, OpenLDAP, OAuth 2.0, and OIDC.Experience with DevOps tooling including Ansible, Terraform, Jenkins, and GitLab.Familiarity with containerized development environments including Rancher and Kubernetes. DESIRED SKILLS AND QUALIFICATIONSCitrix Certified Professional, Virtualization (CCP-V) or higher.Experience with Model-Based Systems Engineering (MBSE) environments and tools.Experience optimizing cloud-hosted solutions and supporting Azure or similar environments.Experience configuring and instrumenting monitoring and visualization tools such as Grafana and Splunk.Experience implementing and integrating ServiceNow solutions.Familiarity with customer security requirements and processes within classified environments.Experience supporting virtualization technologies and application streaming or layering techniques.Experience leading from a total system perspective across cloud services, infrastructure, and security domains.Experience integrating complex systems using APIs, message queues, and ETL pipelines. *Applicants selected will be United States citizens and may be subject to a government security investigation for access to classified information.* ABOUT USAt MGS, we believe a people-first culture corresponds to organizational success through a commitment to excellence, integrity, inclusion, and an attitude that welcomes challenges meets demands, sustains growth, and drives innovation. We provide expert mission-first technical and programmatic services and solutions for the US intelligence community, the US Department of Defense, and other governmental agencies. We create people-first organizational cultures where employees feel needed in the system, not a system that needs employees. We provide you with long-term career opportunities centrally focused on our core value system: inclusion, integrity, and a commitment to excellence.MGS is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status, and will not be discriminated against on the basis of disability.

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