Provide day-to-day support for internal and program applications, including troubleshooting, incident resolution, and root-cause analysisMonitor application performance and system logs to proactively identify and resolve issuesManage and track support tickets through resolution using an ITSM platform (e.g., ServiceNow)Coordinate with software development, database, business analyst, and infrastructure teams to escalate and resolve complex technical issuesSupport application deployments, patches, and upgrades, including testing in staging environmentsMaintain application documentation, including SOPs, known-error databases, and user guidesEnsure compliance with DoD security requirements, including NIST 800-171 controls, when supporting applications that process Controlled Unclassified Information (CUI)Assist with user account provisioning, access control reviews, and audit supportParticipate in Change Advisory Board (CAB) processes for application changesSupport disaster recovery and business continuity testing for critical applicationsProvide occasional after-hours or on-call support for critical system outages. Citizenship required (per federal contract requirements); ability to pass a background checkWorking knowledge of Windows/Linux server environmentsExperience with SQL for basic data queries and troubleshootingFamiliarity with ITIL processes (incident, problem, and change management)Strong written and verbal communication skills, with the ability to explain technical issues to non-technical stakeholdersAbility to work independently and manage competing priorities in a fast-paced environment.