JOAQUÍN CASTELLANO

JOAQUÍN CASTELLANO

Software Engineer & System Administrator

Córdoba, Argentina.

About

Highly analytical System Administrator with over two years of experience in enterprise console management, Windows/macOS support, and strict SLA-driven incident resolution. Currently pursuing a Software Engineering degree, bringing a technical perspective to optimize IT workflows, manage hardware assets, and enhance cybersecurity. Proven ability to drive operational efficiency, implement security protocols (ISO 27001), and foster continuous improvement.

Work

ITLG & HMM

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System Administrator

Córdoba, Córdoba, Argentina

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Summary

Led system administration and IT infrastructure management, ensuring seamless operations and robust security for over 150 users in a hybrid environment.

Highlights

Managed enterprise IT consoles and platforms, providing comprehensive L1/L2 technical support for Windows and macOS users (150+), and resolving incidents within strict Service Level Agreements (SLAs).

Implemented Data Loss Prevention (DLP) solutions and security policies, enhancing data protection and automating operational tasks using Google Apps Script to improve efficiency.

Developed and maintained IT policies, procedures, and evidence for ISO 27001 compliance, ensuring robust security frameworks and audit readiness.

Oversaw end-to-end IT asset management, including hardware procurement and licensing, and conducted employee training on IT best practices and phishing simulations to strengthen security awareness.

ITLG

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Help Desk

Córdoba, Córdoba, Argentina

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Summary

Provided essential Level 1 technical support and managed user onboarding processes, contributing to efficient IT operations.

Highlights

Delivered Level 1 technical support for basic hardware and software incidents, efficiently logging and escalating issues based on complexity to ensure timely resolution.

Managed initial user onboarding, including account activation and basic configuration, and established the initial equipment inventory system.

Developed and updated support documentation and user guides, improving knowledge base accessibility and streamlining basic issue resolution.

Education

UES21

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Undergraduate Software Engineering

UTN-FRC

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Undergraduate Systems Engineering Grade:

Jóvenes Argentinos

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High School Diploma Economics Grade:

Languages

Spanish

English

Conversational

Certificates

SQL Course

Coderhouse

Cybersecurity Course

Coderhouse

Skills

Cloud & Productivity Tools

Google Admin (Workspace), Microsoft 365, AWS, Atlassian (Jira, Confluence), TeamViewer, Adobe, Apple Business Manager.

Security & Networking

Fortinet, ESET Protect (Antivirus), DLP, ISO 27001, VPN, Network Infrastructure.

Databases & Scripting

SQL, Google Apps Script.

Operating Systems

Windows, macOS.

Professional Attributes

Proactive, Self-taught, Responsible, Organized, Detail-oriented, Analytical Thinking, Decision-Making, Effective Communication.