System Administrator Network

HENRIQUE LEANDRO KOZEL Kissimmee, FL ***** • 689-***-**** *************@*****.***

Detail-oriented professional with over 20 years of experience in IT infrastructure, network administration, and operating systems administration, having served as a System Administrator in over 100 companies across South America. Experience managing Windows Servers, Azure, VMware, and AWS server projects. Driven to achieve IT project management goals in line with client requirements. Fluent in Portuguese. Advanced English and Spanish. Seeking a position as a system administrator in a dynamic organization.

SKILLS

Windows Servers 2003, 2008, 2012, 2016, 2019, and 2022 Exchange Server Hyper-V VMware AWS Vcenter Cluster Active Directory Domain Migration VPN Management and Configuration (Sonicwall) Administration of File Server, Failover-Clustering, GPO, DNS, DHCP, Print Server, and WSUS Powershell Scripts Office 365 Administration Veeam Backup Implementation & Administration Assessment, Installation, & Troubleshooting of Windows Servers PROFESSIONAL EXPERIENCE

Tivit Terceirização de Processos, Serviços e Tecnologia – Brazil – Senior Operating System Administrator 09/2020 – 05/2022

● Spearheaded multidisciplinary migration projects for large corporations, efficiently integrating technology and computational environments with new servers and services.

● Managed various Windows Server versions, including virtualized instances on Hyper-V and VMware platforms.

● Implemented and administered complex IT infrastructure components, such as Active Directory, Group Policy, DHCP, DNS, and Remote Desktop Services, contributing to seamless operations.

● Automated processes and enhanced system functionality through PowerShell scripting, improving hybrid cloud efficiency.

● Collaborated with cross-functional teams to ensure successful project execution and alignment with IT goals. Inove Tecnologia em Rede – Brazil – Network Administrator 09/2019 – 09/2020

● Administered Windows Server environments for a portfolio of clients, including Hyper-V and VMware virtualization, ensuring seamless network operations and efficient resource allocation.

● Managed Office365, Azure, and AWS platforms, optimizing cloud-based services and enhancing overall IT infrastructure performance and reliability.

● Implemented and maintained storage systems and LUNs, supporting diverse data management requirements and ensuring optimal network functionality.

Ubik do Brasil Soluções em Tecnologia – Brazil – Senior Operating System Administrator 04/2014 – 04/2019

● Spearheaded large-scale IT projects for multiple clients, leading technical aspects of Microsoft, VMware, and backup solutions, while ensuring seamless implementations and migrations.

● Maintained approximately 700 Windows Servers, including Hyper-V and VMware virtualized environments, optimizing performance and system stability.

● Managed Azure and Office365 platforms, storage systems, and LUNs, ensuring robust and reliable IT infrastructure. Districar Importadora e Distribuidora de Veículos – Brazil – Network Administrator 04/2013 – 04/2014

● Administered and maintained Windows Servers, including VMware virtualization and vSphere 5.1 management.

● Managed network security by implementing and maintaining Symantec Endpoint Protection and BackupExec, while supervising a team of three analysts to provide first and second-level service. Target One Informática – Brazil – IT Consultant 06/2006 – 02/2013

● Deployed, maintained, and administered Windows Servers / workstations for external clients, including VMware virtualizations.

● Managed Active Directory, Group Policy, DHCP, DNS, Print Server, Remote Desktop Services, and SQL Server installations. CERTIFICATIONS & TRAINING

● AWS Cloud Practitioner – Proz Educacao – Brazil 03/2023

● Introduction to Front-End Web Development - Proz Educacao – Brazil 02/2023

● Microsoft Azure Fundamentals – Ka Solution 11/2021

● Microsoft MCT 70-410 Installing and Configuring Windows Server 2012 (EN) Certificate - Microsoft – Brazil 03/2015

● Microsoft MCT 70-411 Administering Windows Server 2012 (EN) Certificate - Microsoft – Brazil 04/2015 EDUCATION

● Bachelor's degree in Computer Engineering – Universidade Braz Cubas – Brazil 06/2007

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