Provided 1st, 2nd and 3rd level support related to computer systems, hardware, networks, and software for 12,000 client users and 6,000 computers. Utilized SAU (Sistema de Atendimento ao Usuario) to manage tickets, maintain comprehensive customer contact records, facilitate team communication, generate reports, and identify solutions. Created and maintained scripts and applications in VB.Net, C#, VBScript and BAT for configuration, software maintenance and device installation for associates or customers to self-serve, reducing calls for certain applications to almost zero. Managed the print server, creating new print queues, assisting the printer outsourcing company during equipment installation, providing all the necessary configuration for insertion into the network. Created executables using Inno Setup, configuring all the requirements for full operation in the business environment, reducing installation and configuration time, also making some of the executables available for self-service by users. Participated in the migration of server systems, such as OWA and Zimbra emails, creation of new accounts, email box management, configuration of email management software. Implemented a XAMPP environment to create the department's knowledge base, using WordPress, configuring the entire application, adapting, and debugging the theme's code in HTML, CSS, JavaScript, and PHP, managing access, installing plugins, creating documentation on all technological procedures. Used EPP Apex One to detect and prevent security threats, maintaining permitted software policies, managing reports, and creating action plans. Administration of mobile devices through Samsung Knox, creation and maintenance of policies, creation of new users and software management. Maintained equipment and software inventory, using company management tools such as Autodesk, Microsoft, Adobe, etc. Conducted requirements gathering for new software, created documentation, managed new tickets, and implemented necessary solutions and adaptations. Facilitated onboarding and offboarding processes, created Active Directory accounts using a web portal, and managed access permissions for systems, file servers, network, and internet. Prepared equipment using WDS for operating system image updates and updated installation scripts for the HarmoniIT domain management tool.