CACI is seeking a Systems Administrator to support a Service Desk team on the F3I program. The employee can work from Omaha, NE. Shift work Required: This position will be to cover a 24-hour help desk, so evenings, overnights, and weekends are required. Responsibilities: Support end-user applications and work in a multi-tier service desk as well as work with software development and systems administrators to help reproduce and diagnose problems. Provide remote support to users for network and desktop hardware and software problems. Respond to and diagnose problems through interactions with users while ensuring a timely process through which problems are controlled, including problem recognition, research, isolation, resolution, and follow-up steps. Interact with infrastructure, cloud services, and/or mission applications teams to restore service and/or identify and correct core problems. Simulate or recreate user problems to resolve operating difficulties and recommend system or process modifications to reduce user problems. Possess and apply comprehensive knowledge across key tasks and high-impact assignments. Populate a consolidated Knowledge Management solution to provide Tier 0 Self Service Portal to user populations and provide a centralized knowledge repository for assigned applications suites. Collaborate with the engineering teams to identify, respond, and resolve tickets in a timely manner. Communicate issues and resolutions with your team lead. Define and strategize Incident, Knowledge and Problem management across a large-scale organization.