$ whoami --role="IT Supervisor"

Rosanno Lumubos

a.k.a. Sonny

IT professional with 9 years of experience in IT roles, including 6 years at the IT Supervisory level, specializing in network infrastructure, security systems, and IT team leadership.

sonny@lumubos:~

$ cat profile.txt

role: IT Supervisor @ LIME Hotel & Resort, El Nido

status: Present

Network Infrastructure Firewalls CCTV Systems People Management AWS Azure Oracle Datadog
Rosanno Lumubos

About

9 years in IT. 6 years leading teams.

I'm Rosanno Villaceran Lumubos, known to clients and colleagues as Sonny, an IT professional with 9 years of experience across IT operations, including 6 years at the IT Supervisory level, primarily within the hospitality industry.

My core strength is network infrastructure and systems administration: configuring and maintaining firewalls (Sophos, pfSense), managing switches and network hardware (Ruijie), and overseeing security and communication systems including CCTV, intercoms, and VOIP (Grandstream) across multi-site properties.

Beyond the technical side, I've built strong people management experience, leading IT teams, coordinating with vendors, and maintaining clear system documentation and SOPs to keep operations running smoothly. I also carry working knowledge of Windows Server administration and Microsoft Azure.

Also familiar with

HTML5 CSS3 PHP MySQL Photoshop Canva

Credentials

Certifications

Microsoft Azure

AZ-900

Microsoft Certified: Azure Fundamentals

Core cloud concepts, Azure services, security, and pricing.

Microsoft Azure

AZ-305

Microsoft Certified: Azure Solutions Architect Expert

Designing infrastructure, network, storage, and security solutions on Azure.

Core Expertise

Where I Add the Most Value

Network & Security

Network Administration Firewall Config Sophos pfSense Switches Ruijie

Surveillance & Communications

CCTV Systems Intercom Systems Grandstream / VOIP System Configuration

Leadership & Operations

People Management Team Leadership Documentation & SOPs Vendor Coordination

Career Path

Experience

Most recent role first.

LIME Hotel and Resort El Nido ● Present

LIME Hotel and Resort, El Nido

IT Supervisor

March 25, 2026 to Present

Accenture Philippines

Accenture Philippines

App/Cloud Analyst

Delta P, Inc. Power Plant

Delta P, Inc. Power Plant

IT Consultant

Sunlight Hotels & Resorts

Sunlight Hotels & Resorts

IT Supervisor

Sheridan

Sheridan

IT Assistant

What I Do

Services

Network & Infrastructure

Firewall and switch configuration, network administration, and infrastructure troubleshooting across multi-site properties.

IT Team Leadership

Supervising IT staff, coordinating vendors, and setting the standards that keep an IT department running well.

Security & Surveillance

CCTV, intercom, and VOIP system setup and maintenance, built around reliability and clear access control.

Documentation & SOPs

Clear, maintainable IT documentation and standard operating procedures that make handovers painless.

Also available for light web & backend support on request.

On the side: a few backend/web builds

Kiefer's Delivery App
Click to view

Kiefer's Delivery App

Backend Developer

Tara Rides
Click to view

Tara Rides

Backend Developer

Food Ohh
Click to view

Food Ohh

Backend Developer

Let's Connect

Contact

Reach out for inquiries, collaborations, or just to say hi.

© 2026 Rosanno "Sonny" Lumubos. Built with care.