Senior Systems Administrator

Senior Cloud System Administrator / IntegratorShape the Mission. Engineer the Future. GDIT is seeking a Senior Cloud System Administrator / Integrator with deep experience supporting Army systems in cloud and hybrid environments. You will apply advanced systems design and integration principles to deliver secure, interoperable, and cloud-optimized solutions. You will lead cloud integration and system administration efforts across on-prem, tactical, and cloud-hosted environments, ensuring secure, scalable, and mission-ready architectures aligned with Army and DoD cloud strategies, including AC2SP/ALTESS and relevant DoD cloud initiatives.Required CertificationsDoD 8140 / IAT Level II certification (e.g., Security+, CySA+, or GSEC).At least one foundational cloud certification (required):AWS Certified Cloud PractitionerMicrosoft Azure FundamentalsOracle Cloud Infrastructure Foundations AssociatePreferred / Advanced CertificationsOne or more associate or professional-level cloud certifications:AWS Certified Solutions Architect Associate or ProfessionalMicrosoft Azure Administrator AssociateMicrosoft Azure Solutions Architect ExpertOracle Cloud Infrastructure Architect Associate or ProfessionalSecurity-focused certifications:Certified Cloud Security ProfessionalCISSPPlatform / operations certification (highly relevant for this role):Certified Kubernetes Administrator (CKA)What You'll Do:Lead cloud-focused integration and system administration across AC2SP/ALTESS-aligned environments, supporting Army cloud migration, modernization, and convergence initiativesDesign and manage hybrid architectures that integrate:On-prem Army systemsTactical edge environmentsCloud platforms (e.g., Azure Government, Oracle Cloud Infrastructure, AC2SP, ALTESS)Administer and integrate workloads within Azure and OCI environments, including:Compute (VMs, containers, serverless where applicable)Storage (blobs, disks, object storage)Networking (VNets, subnets, gateways, peering, VPNs)Identity and access services (Azure AD, OCI IAM, role-based access control)Support migration and sustainment of geospatial systems (e.g., ArcGIS) into cloud-native and hybrid architectures, ensuring performance, reliability, and secure accessImplement and maintain DevSecOps pipelines to support continuous integration and deployment (CI/CD) of cloud-hosted applications and servicesAutomate system configuration, patching, and monitoring using:PowerShellCloud-native automation tools (e.g., Azure Automation, OCI Resource Manager, Lambda/Functions)Configuration management tools (e.g., Ansible, DSC)Ensure cloud-hosted systems meet DoD RMF, STIG, and Impact Level (IL2-IL6) compliance requirementsSupport cross-domain and multi-security-level integrations involving data flows between tactical, on-prem, and cloud environmentsMonitor cloud system health, performance, and availability using cloud-native observability tools (e.g., Azure Monitor, Log Analytics, OCI Monitoring, CloudWatch if applicable)Troubleshoot integration issues across multi-vendor and multi-cloud ecosystems in real time, ensuring mission continuity and resilienceKey Responsibilities:Serve as technical lead for cloud integration and system administration across AC2SP, Azure, OCI, and related cloud environments supporting Army missions.Develop and maintain cloud system architecture artifacts, including:Cloud reference architecturesData flow diagramsInterface Control Documents (ICDs)Lead integration of geospatial platforms (e.g., ArcGIS Enterprise) into cloud-hosted and hybrid environments, ensuring secure access and optimized performance.Configure and manage:Virtual machines, containers, and platform services in Azure/OCIIdentity and Access Management (IAM) in Azure AD and OCI, including:Role-based access control (RBAC)Conditional access and security policiesNetworking in the cloud:VNets, subnets, NSGs, gatewaysHybrid connectivity (VPN, ExpressRoute, FastConnect)Support cloud landing zone implementation and sustainment for Army and DoD environments.Implement automation and Infrastructure as Code (IaC) using tools such as:TerraformAzure Resource Manager (ARM templates)OCI Resource Manager (Terraform-based)Apply PowerShell and REST API integrations for:Cloud resource orchestrationDiagnostics and remediationAutomated governance and compliance checksEnsure compliance with:Risk Management Framework (RMF)DISA Security Technical Implementation Guides (STIGs)DoD Cloud SRG (Impact Levels IL2-IL6)Provide technical input for AC2SP and Army cloud migration planning and execution, including assessments of readiness, risk, and performance.Deliver executive-level updates on cloud integration progress, risks, and system readiness.Operate effectively under time-sensitive conditions, providing executive-ready briefings, updates, and status reports to leadership and stakeholders.Education: Bachelor's degree or higher in Information Systems, Computer Science, or a related field. Years of Experience: 10+ years of experience in systems administrator, engineering, and integration supporting large-scale system sustainability. 5+ years of related DoD, Military, or US Government related experience. Required Skills & QualificationsDemonstrated expertise in cloud system administration and integration for mission-critical environments, preferably Army/DoD.Knowledge of secure DevSecOps principles and CI/CD pipelines supporting rapid, secure capability deployment in cloud environments.Hands-on experience building, administering, and securing workloads in:Microsoft Azure (Azure Government strongly preferred)Oracle Cloud Infrastructure (OCI)AC2SP or similar DoD cloud initiativesStrong scripting expertise, including:PowerShellBash/Python (for multi-platform and automation tasks)Experience integrating automation with:Cloud APIs (Azure, OCI, AWS where applicable)Monitoring tools (Azure Monitor, Log Analytics, OCI Monitoring, SIEM platforms)Configuration management systems (e.g., Ansible, DSC, SCCM)Cloud & Integration ExpertiseHands-on experience with:AC2SP/ALTESS environments and Army cloud initiativesMicrosoft Azure (preferred: Azure Government)AWS Gov CloudOracle Cloud InfrastructureExperience administering:Cloud compute, storage, and networkingIdentity and access management (IAM)Hybrid cloud connectivityExperience integrating on-prem systems with cloud platforms