Senior Systems Engineer / Windows Administrator

Job Description: Type of Requisition: Regular Clearance Level Must Currently Possess: Secret Clearance Level Must Be Able To Obtain: Top Secret/SCI Public Trust/Other Required: None Job Family: IT Infrastructure and Operations Skills: Job Qualifications: Computer Servers, Microsoft Windows Server, Scripting, System Administration, Systems Design Certifications: None Experience: 5 + years of related experience US Citizenship Required: Yes Job Description: SYSTEMS ENGINEER/ADMINISTRATOR - WINDOWS - SENIOR Advance how our customers operate while you advance your career. Join GDIT as a Systems Engineer/Administrator Senior and build an impactful career in enterprise IT, collaborating with people who are driven and resourceful like you. MEANINGFUL WORK AND PERSONAL IMPACT As a Systems Engineer/Administrator, the work you’ll do at GDIT will be impactful to the mission of USAREUR-AF G6. This role is responsible for the engineering, maintenance, and modernization of identity, credential, and access management (ICAM) infrastructure across hybrid environments. You will focus on safeguarding and enabling access to business critical Headquarters applications, integrating legacy authentication systems with enterprise-level solutions, and advancing automation through Infrastructure as Code (IaC) and DevSecOps practices. The ideal candidate brings deep Windows Server and Active Directory expertise, hands-on experience with AD FS and Azure DevOps, and a strong commitment to secure, reliable, and automated solutions that support the DoWIN environment.Administer and optimize AD FS and ICAM services Administer multiple Active Directory Federation Services (AD FS) environments that support authentication and authorization for users accessing applications via the DoWINMonitor, troubleshoot, and optimize federation services to ensure secure, highly available access to mission-critical applicationsCoordinate changes and updates with other identity and directory teams across the enterprise Engineer integration solutions with enterprise ICAM providers Design and implement solutions to integrate existing and new applications with DoW-wide ICAM providersDevelop technical designs, configuration standards, and documentation for application onboarding to centralized authentication and authorization servicesCollaborate with application owners and security stakeholders to ensure compliance with relevant DoW and USAREUR-AF policies Manage on-premises DevSecOps platform Administer an on-premises DevSecOps platform, including creation of new repositories, pipeline configuration, and agent deployment/managementPartner with development and operations teams to streamline CI/CD workflows, improve build and release reliability, and increase automation coverageImplement and maintain controls that support secure code management, branching strategies, and auditability Design and implement Infrastructure as Code (IaC) solutions Design IaC solutions using tools such as Microsoft Desired State Configuration (DSC) or similar tools to standardize system configurations and automate system deploymentsDevelop, test, and document reusable configuration templates and automation artifacts for Windows-based infrastructure and applicationsContinuously improve deployment reliability, configuration consistency, and time-to-delivery through automation Deploy and maintain lab environments for research and testing Build and maintain lab environments used by development and operations teams for research, prototyping, and pre-production testingCoordinate refreshes, reconfigurations, and proof-of-concept efforts in support of modernization and migration activities Support core Windows infrastructure operations Assist with Active Directory Domain Services (AD DS), Group Policy, and IIS web server operations as part of the broader operations teamContribute to patching, STIG hardening, security remediation, and performance tuning tasks for Windows Server platformsParticipate in on-call or after-hours support rotations, as required by the mission WHAT YOU’LL NEED TO SUCCEED Bring your technology expertise and drive for innovation to GDIT. The Systems Engineer/Administrator Senior must have:Education: Bachelor of Arts/Bachelor of ScienceExperience: 5+ years of related experienceSecurity clearance level: U.S. SECRET with the ability to obtain TS/SCIUS citizenship requiredMeets DoD 8140 System Administrator Intermediate or Advanced certification requirementsITIL Foundation Certification.One of the following (or higher) Microsoft certifications:Windows Server Hybrid Administrator Associate, orDevOps Engineer Expert.Demonstrated experience with:Windows Server administration in an enterprise or DoW environmentAD FS– configuration, operations, and troubleshootingAD DS – accounts, groups, OU structure, GPO application, and delegationAzure DevOps – repositories, pipelines, and agentsApplying and interpreting STIGs for Windows Server and related technologiesStrong PowerShell scripting skills for automation, configuration, and administration tasks Preferred Qualifications / Desired Skills Experience with eMASS and the RMF processesHands-on experience with DSC and/or similar configuration management frameworksExperience using Evaluate-STIGStrong Group Policy design and troubleshooting skills in complex AD environmentsExperience with containerization and orchestrationOne or more current cloud certifications GDIT IS YOUR PLACE At GDIT, the mission is our purpose, and our people are at the center of everything we do. Growth: AI-powered career tool that identifies career steps and learning opportunitiesSupport: An internal mobility team focused on helping you achieve your career goalsRewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time offCommunity: Award-winning culture of innovation and a military-friendly workplace OWN YOUR OPPORTUNITY Explore an enterprise IT career at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your desire to drive operations forward. #defenseOCONUS #GDITRecruiting #GDITArmy The likely salary range for this position is $107,950 - $146,050. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range. Total compensation for international positions varies by tax, social security, and immigration statuses, as well as location. Generally, an international assignment may include allowances, premium uplifts, and/or relocation or transportation benefits, above base salary range noted. Scheduled Weekly Hours: 40 Travel Required: Less than 10% Telecommuting Options: Onsite Work Location: International Additional Work Locations: Total Rewards At GDIT: Our benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most. Our Identity Verification Process: As part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes. About Our Work: We are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development. Join our Talent Community to stay up to date on our career opportunities and events at gdit.com/tc. Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans