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Brandon Ramirez Lagos

@brandonramirez

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System Administrator specializing in Microsoft 365/Azure, IAM, and email security to ensure business continuity.

Colombia

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What I'm looking for

I’m looking for a remote-first environment where I can own Microsoft 365/Azure administration, IAM with Active Directory, and email security, handling L1/L2 incidents end-to-end while improving reliability and security through Agile/Scrum.

I’m a results-oriented System Administrator with over 4 years of experience ensuring business continuity through proactive infrastructure, Cloud, and security administration. I handle end-to-end management of Microsoft 365 platforms and Azure services, and I deepen IAM with expert-level Active Directory administration for identity synchronization, user lifecycle, and access controls. I also lead critical messaging security implementations using Barracuda and Mimecast to mitigate malware, spam, and phishing threats across the organization.

In my current Sr. System Executive role, I streamline incident resolution and infrastructure execution using Freshdesk and Scrum-aligned planning, maintaining strong performance in remote-first environments. Previously, I delivered Tier 1 and Tier 2 global support, reduced user downtime through hardware diagnostics and preventive maintenance, and improved operational continuity by using remote administration tools like Syncro. I bring strong technical leadership, vendor coordination, and clear documentation to continuously improve systems, security policy enforcement, and user satisfaction.

Experience

Work history, roles, and key accomplishments

Current

Sr. System Executive

Current

ETL

Nov 2024 - Present (1 year 6 months)

Administer Microsoft 365 and Azure services end-to-end, enforcing configuration, licensing, and security policies. Manage Active Directory and GPO-based identity controls, and oversee Barracuda/Mimecast email security to mitigate phishing, malware, and spam threats.

Microsoft 365 Administration Microsoft Azure Active Directory Identity and Access Management (IAM)Barracuda Mimecast Scrum Agile

IT Support Specialist

Aris Mining

Mar 2024 - Oct 2024 (7 months)

Provided Tier 1 and Tier 2 support to resolve hardware, software, and connectivity incidents and reduce user downtime. Managed Active Directory user access lifecycle and preventive/corrective maintenance while maintaining IT asset inventory for audits.

Active Directory User Access Lifecycle Asset Inventory IT Infrastructure Support Remote Support

Help Desk Specialist

PG Solutions Corporation

Nov 2022 - Dec 2023 (1 year 1 month)

Managed end-to-end Tier 1 and Tier 2 incident tickets and delivered remote resolutions using Syncro. Administered Microsoft 365 user licenses/configurations in the Microsoft Admin Center and performed daily Active Directory operations for provisioning and security policy enforcement.

Microsoft 365 Administration Active Directory User Provisioning Security Policies Technical Documentation

IT Support & Hardware Specialist

Ricoh Latin America Inc

Mar 2022 - Aug 2022 (5 months)

Handled Tier 1 and Tier 2 ticket lifecycles with rapid response to ensure high user satisfaction. Provided printer fleet support, including preventive/corrective maintenance and network printing administration with driver troubleshooting, consumables management, and vendor coordination.