Senior System Administrator - DISA E-ICAM Program (Hybrid)

As a Senior System Administrator supporting our DoW Enterprise Identity, Credential, and Access Management (E-ICAM) program, you will provide Tier III operational support for the availability, performance, security, and reliability of the E-ICAM solution. You will troubleshoot complex incident tickets, perform root-cause analysis, and work closely with engineering, development, cybersecurity, integration, and service management teams to resolve production issues. You will use your experience with ICAM technologies, LDAP, Active Directory, permission groups, and cloud environments to support hosted customer applications and enterprise identity services. You will also help improve system performance, operational processes, documentation, and service quality. This is a hybrid position that will require some onsite support at the customer site in Fort Meade, MD. How a Senior System Administrator Will Make an Impact: Provide Tier III administration and technical support for the DoW E-ICAM production environment. Troubleshoot and resolve complex incident tickets, service requests, system alerts, and production issues. Work closely with engineers and other technical teams to diagnose and resolve issues requiring advanced analysis or specialized expertise. Administer and support ICAM software, tools, platforms, and operating environments. Support directory services and identity technologies, including LDAP, Active Directory, directory synchronization, permission groups, roles, and access controls. Administer and troubleshoot cloud-hosted systems and services in environments such as Microsoft Azure. Analyze system logs, monitoring data, authentication flows, error messages, and configuration information to identify root causes. Troubleshoot account provisioning, authentication, authorization, entitlement, permission, and identity synchronization issues. Escalate critical or unresolved issues to the appropriate engineering, development, cybersecurity, vendor, or infrastructure teams. Coordinate incident triage, technical troubleshooting, escalation, resolution, and validation. Document troubleshooting activities, findings, corrective actions, and ticket resolutions in ServiceNow. Monitor system health, availability, performance, capacity, and operational alerts. Perform routine system administration, configuration, maintenance, patching, and lifecycle support activities. Support approved production changes, releases, upgrades, deployments, and configuration updates. Participate in change reviews and validate systems following production changes. Identify recurring incidents, configuration issues, technical risks, and opportunities for automation or service improvement. Support problem-management activities and contribute to root-cause analyses and corrective-action plans. Support continuity of operations, disaster recovery, contingency planning, system restoration, and operational resilience activities, as applicable. Participate in Scrum calls, incident reviews, change reviews, technical exchange meetings, and other program ceremonies. Share technical knowledge and provide guidance to less-experienced team members. Perform other related duties and special projects as required. What You’ll Need to Succeed (Required): Bring your system administration, troubleshooting, and enterprise operations experience—along with a commitment to innovation and mission success—to GDIT. The Senior System Administrator must have: Bachelor’s Degree. An additional 4 years of experience may be substituted in lieu of degree. Minimum of an active Secret clearance. 3+ years of related technical experience. CompTIA Security+ certification. In addition, selected candidate must possess another certification satisfying IAT Level II requirements or be willing to obtain within 90 days post hire. Demonstrated experience providing Tier III system administration support in a large-scale enterprise DoD environment. Experience supporting ICAM software, tools, technologies, or operating environments. Knowledge of IT service management practices, including incident, problem, change, configuration, and service-level management. Familiarity with DoD customers and work environments. Strong troubleshooting, analytical, and problem-solving skills. Strong communication, collaboration, and interpersonal skills. Highly organized and detail-oriented, with the ability to manage multiple incidents and priorities in a dynamic production environment. Self-driven and proactive, with a strong commitment to system reliability, service quality, cybersecurity, and mission success. What You’ll Need to Succeed (Desired): Experience with SailPoint is a plus. Knowledge of federation, single sign-on, multifactor authentication, identity governance, privileged access, or certificate-based authentication. Experience using scripting or automation technologies such as PowerShell, Python, Bash, or Microsoft Graph. Knowledge of networking concepts and protocols used by enterprise identity services, including DNS, TLS, Kerberos, SAML, OAuth 2.0, and OpenID Connect. Knowledge of high-availability environments, continuity of operations, disaster recovery, and operational resilience. Experience working in Agile or DevSecOps environments. GDIT Is Your Place At GDIT, the mission is our purpose, and our people are at the center of everything we do. Growth: An AI-powered career tool that identifies career steps and learning opportunities. Support: An internal mobility team focused on helping you achieve your career goals. Rewards: Comprehensive benefits and wellness packages, a 401(k) with company match, competitive pay, and paid time off. Community: An award-winning culture of innovation and a military-friendly workplace. Own Your Opportunity Explore an enterprise IT career at GDIT, where you will have opportunities to grow alongside colleagues who share your commitment to solving complex technical problems, strengthening identity services, and supporting the DoD mission.