Gaston Pallero
Gaston Pallero

Microsoft Infrastructure Engineer and Administrator

Actively looking · Member since 20 Oct 2026
Location
Buenos Aires, Argentina
Desired salary
Unspecified
Work preference
On-site
Experience level
Senior

About

Professional summary

I am a Microsoft Infrastructure Engineer and Administrator with more than 20 years of experience supporting, deploying, migrating, and maintaining enterprise IT infrastructure.

I specialize in Windows Server, Active Directory, Microsoft Exchange, Microsoft 365, Entra ID, Azure AD Connect, Exchange Online, Teams, and PowerShell automation. My work includes both on-premises and hybrid Microsoft environments.

I have worked as an infrastructure consultant and managed service provider engineer for organizations in Argentina and the United States. I provide L1, L2, and L3 remote user support as well as administration of servers, cloud services, security tools, and business applications.

I have led server, directory services, email, and physical-to-virtual migration projects. My virtualization experience includes VMware ESXi, VMware vCenter, and Microsoft Hyper-V.

I also have experience with infrastructure security, endpoint protection, anti-spam systems, backup solutions, ticketing platforms, networking, and IT service management. I am a native Spanish speaker with advanced bilingual English and basic Portuguese.

Skills

27 capabilities

Tech stack & tools

Working toolkit

Development

Experience

Career history

Microsoft Infrastructure Engineer and Administrator INDEC Argentina

I deploy, administer, and maintain Microsoft server infrastructure and related services for INDEC Argentina in Puerto Madero.

My responsibilities include Windows Server, Active Directory, Exchange on-premises and hybrid services, Microsoft 365, Entra ID, Azure AD Connect, Exchange Online, Teams administration, PowerShell automation, VMware ESXi, and VMware vCenter.

Microsoft Infrastructure Engineer and Consultant (MSP) MBACIO

I worked as a Microsoft infrastructure engineer and consultant for MBACIO, supporting a leading Chicago-based chocolate company.

I administered Microsoft 365, compliance and data-governance services, Entra ID, Azure AD Connect, Exchange Online, Teams, Active Directory, and on-premises servers. I also delivered L1/L2/L3 remote support and managed ShipStation, LastPass, MailProtector, INKY, ConnectWise, and ConnectWise ScreenConnect.

Microsoft Infrastructure Engineer and Consultant (MSP) Readymind Argentina

I worked as a Microsoft infrastructure engineer and consultant at Readymind Argentina, a LATAM Microsoft Gold Partner.

I planned, deployed, and administered Windows Server, Active Directory, Microsoft 365, Entra ID, Azure AD Connect, Exchange on-premises, Exchange Online, Teams, and PowerShell automation. I also performed migrations, provided client support, and conducted infrastructure analysis and preventive maintenance.

Microsoft Infrastructure Engineer and Consultant (MSP) Ciolanding

I provided Microsoft infrastructure consulting and managed services support for clients, sites, and users.

My work covered Windows Server, Active Directory, Exchange on-premises, Office 365, Azure directory synchronization, Exchange Online, and L1/L2/L3 remote user support.

Infrastructure and Server Administrator S.E. Casa de Moneda

I administered infrastructure, servers, and enterprise services, while leading systems, server, and service migration projects.

I managed physical-to-virtual server conversions, VMware ESX and vCenter, Active Directory, domain controllers, DNS, DHCP, file servers, WSUS, Exchange, Lync Server, antivirus, anti-spam, firewall, backup, ticketing, and basic network administration. I participated in migrations from Windows NT/2000 to Windows Server 2008/2012 and from Exchange 5.5/2000 to Exchange 2010.

Server Administrator ByteTech / CubeCorp Argentina

I administered servers and provided user support for ByteTech and CubeCorp Argentina.

My responsibilities included Active Directory, domain services, Microsoft Exchange on-premises, Avaya IP phone support, networking, and on-site IT support for Discovery Networks Latin America.

L1/L2 Consultant Yel Informática

I worked as an L1/L2 consultant supporting Aeropuertos Argentina and its network of 30 dependent airports.

I provided end-user and technical support services across a distributed operational environment.

Fiscal Printer Support and Deployment Technician Casa Trasorras S.C.

I provided support and management for Epson and NCR fiscal printers.

I also supported and deployed ShureVision/AmazePC all-in-one desktop computers.

Sales, Management, and On-site Support Compulaser S.R.L.

I handled sales, management activities, and on-site technical support for a broad client portfolio.

This role combined customer service, commercial responsibilities, and field IT support.

Copy Machine Support Technician ECADAT S.A.

I provided technical support for copy machines.

I diagnosed and resolved equipment-related issues for customers.

Education

Learning history
No education data available.

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