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pablo castello

@pablocastello

Senior SysAdmin at Banco Galicia who prevented a potential outage affecting 300 servers and 6,000 customers.

Argentina
Message

At Banco Galicia, I led Windows Server migrations from 2016 to 2022 and managed VMware and Citrix platforms for secure virtual desktops and corporate applications. I also identified a server-template configuration error that could have caused an outage affecting 300 servers and 6,000 customers.

I automated recurring operations with PowerShell and administered hybrid Microsoft environments, including Active Directory, Azure/Entra ID, and Microsoft 365. Using monitoring tools, I traced performance issues to an uncoordinated security-agent installation and helped restore system stability.

Experience

Work history, roles, and key accomplishments

IT

Especialista Networking

Indicom (Telecentro)

Jan 2022 - Mar 2024 (2 years 2 months)

Promoted to corporate clients area after 5 months; diagnosed and resolved network incidents using CRM platforms, TCP/IP analysis, routing, and advanced monitoring tools.

HD

Administrador de Infraestructura IT & Redes

Hospital San Juan de Dios

Mar 2021 - Jun 2021 (3 months)

Managed Domain Controller, DHCP, DNS, Active Directory, and virtualization with Hyper-V and Ncomputing; maintained Data Center and structured cabling for AVAYA Call Center.

MS

Soporte Técnico & Infraestructura IT

Mostaza y Pan S.A.

Oct 2020 - Dec 2020 (2 months)

Administered MikroTik devices, monitored networks with Zabbix, and maintained CCTV IP/Coaxial networks.

HF

Técnico de Infraestructura IT & Soporte

Hospital y Universidad Favaloro

Oct 2019 - Oct 2020 (1 year)

Managed Active Directory users, supported FortiClient VPN, created custom OS images for engineering labs, and handled ticketing with Spiceworks.

Education

Degrees, certifications, and relevant coursework

Universidad Tecnológica Nacional logoUN

Universidad Tecnológica Nacional

Analista en Sistemas, Systems Analysis

Pursuing a degree in Systems Analysis, currently in progress.

BA

Baufest

Programa de Entrenamiento BI, Business Intelligence

Completed a BI training program covering SQL Server and Power BI.

CF

CFP N° Fátima

Técnico en PC y Redes, PC and Networks

Completed a two-year technical program in PC and networks.

Cisco Networking Academy logoCA

Cisco Networking Academy

Cisco CCNA 1, Networking

Completed the CCNA 1 course covering networking fundamentals.

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