HomeJourneySkillsExperienceProjectsProcessContactGet In Touch
HELLO, I'M

Kobie Rabe
Calingasan

Full-Stack Developer • Embedded Systems Builder • Aspiring Cybersecurity Engineer

I build and explore systems across software and hardware — from ESP32-based IoT prototypes to full-stack web applications, focusing on integrated systems that transform real-world data into reliable, functional solutions across healthcare, automation, and education.

My early work includes EUNOIA, an award-winning academic prototype that explored system design and applied development in a school research setting. Currently, I am expanding into cybersecurity through self-study and hands-on training, with a focus on understanding system vulnerabilities, secure design, and defensive development practices.

Let's ConnectView Projects
9+
Projects
2
Highlights
12+
Skills
Kobie Rabe Calingasan - Hardware & Software Developer
Available for Projects
SCROLL

My Journey

Forged through adversity. Built through relentless determination. From pandemic struggles to award-winning innovations.

Grade 10

The Spark

Curiosity ignited. Started wondering how phones, TVs, and systems really work. Technology wasn't just magic—it was logic waiting to be understood.

Pandemic Era

Learning with Nothing

The world shut down, but learning didn't stop. Armed with only a low-end tablet, YouTube, articles, and pure determination—I taught myself to code. No AI. No shortcuts. Just repetition, logic, and discipline.

Grade 12

EUNOIA: The First Big Build

Created EUNOIA—a school-exclusive social platform for Laguna High School. Safe anonymous matching, study tools, notes sharing, groups, and announcements. A complete student ecosystem built from scratch.

🏆 Featured
Senior High

Recognition

EUNOIA became the Top 1 Congressional Research project in school. The project that started as an idea became proof that persistence and creativity matter more than resources.

College (IT)

The Journey Continues

Now pursuing IT in college with a deep focus on cybersecurity, Linux, systems, and programming. Building more. Learning faster. Ready to create solutions that matter.

This journey taught me that constraints breed creativity. Every obstacle became a weapon. Every limitation became fuel for innovation.

The best part? This is just the beginning.

Tech Stack Visualization

Tech Stack & Skills

A practical skill set used across student projects in software, hardware, cybersecurity, and infrastructure.

Programming Languages

Core languages applied across software, backend, and embedded development.

JavaPythonJavaScriptC++C

Web & Mobile Development

Front-end, backend, and mobile technologies used to build complete applications.

HTMLCSSReactNode.jsFlutterFirebaseSupabaseSQLMongoDB

Hardware / Embedded Systems

Hands-on work with microcontrollers, connected devices, and sensors.

ArduinoESP32IoT Development

Cybersecurity Practices

Security capabilities focused on assessment, defense, and professional practice.

Network SecurityThreat AnalysisVulnerability AssessmentIncident ResponseSecurity TestingPenetration Testing

Infrastructure & Networking

Core platform knowledge for networked systems, cloud foundations, and operations.

NetworkingCloud FundamentalsRailwayLinux SystemsSystem Administration
Professional Journey

Work Experience

From technical support to project management, event organization to hackathons. Real-world experience building communication, leadership, and problem-solving skills.

Communication

Cross-cultural client interaction

Leadership

Team and project management

Technical Support

Troubleshooting and diagnostics

Organization

Event and project coordination

🔥 Current

Current Position

Feb 2025 – Present

Freelance Developer & IoT Specialist

Self-Employed

Freelancer

Accepting projects from clients across IoT systems, mobile applications, web development, and embedded solutions

Key Responsibilities

  • ▸Building IoT systems with Flutter mobile app integration
  • ▸Embedded systems design and prototyping
  • ▸Full-stack web development for clients
  • ▸Mobile application development (Flutter)
  • ▸Client consultation and project scoping
IoTFlutterArduinoWeb DevelopmentClient ManagementFreelancing

Past Position

Ended Feb 2025

Technical Support Specialist

VXI Global Solutions (BPO / Call Center)

Working Student

Provided technical support and customer service for North American clients

Key Responsibilities

  • ▸Internet, Cable, TV & Remote troubleshooting
  • ▸Billing support and account management
  • ▸Customer service and sales
  • ▸Cross-cultural communication with North American clients
  • ▸Problem resolution and technical diagnostics
Technical SupportCommunicationProblem SolvingCustomer ServiceSales

Internship

2 Years

Operations Project Manager & Social Media Manager

Centrive

Led Grade 12 Work Immersion Program

Led internship team and managed social media operations

Key Responsibilities

  • ▸Project management and team leadership
  • ▸Social media content creation and management
  • ▸Coordinated Grade 12 work immersion activities
  • ▸Client communication and reporting
  • ▸Strategic planning and execution
Project ManagementSocial MediaLeadershipMarketingCoordination

School Organization

3 Years • Ongoing

Member & Event Organizer

LESIT

Student Organization

Active member handling events and competitions for IT students

Key Responsibilities

  • ▸Event planning and proposal development
  • ▸Competition organization for IT students
  • ▸Technical workshops coordination
  • ▸Student engagement initiatives
  • ▸Academic event management
Event ManagementOrganizationPublic SpeakingTeamwork

Highlights & Achievements

Hackathon Participant

Competed in multiple hackathons, building solutions under pressure

Team Leadership

Led Grade 12 internship team at Centrive with successful outcomes

Client Communication

Professional experience serving North American clients in English

Problem Solver

Hands-on troubleshooting across technical support and projects

Cybersecurity Competition — Multi-Sectoral CTF

Participated in a multi-sectoral cybersecurity Capture The Flag competition held at Ricarte Hall, Philippine Army Headquarters, Fort Bonifacio. Our team placed 4th place while competing against professionals from several organizations.

Participating Organizations

  • ▸Presidential Security Command
  • ▸Department of National Defense
  • ▸Department of Information and Communications Technology
  • ▸PNP Anti-Cybercrime Group
  • ▸Philippine Coast Guard Cyber Command
  • ▸Philippine Marine Corps
  • ▸Philippine Navy
  • ▸Philippine Air Force
  • ▸Signal Reserve Units
  • ▸Cyber Ready Reserve Battalion Teams
  • ▸Private IT companies

Skills Demonstrated During Competition

Web vulnerability analysisSecurity testing and enumerationProblem solving under time pressureCyber defense techniques

Guest Speaker — Introduction to Arduino

Delivered a session titled "Introduction to Arduino and Hardware Innovation" at Quezon City University - Batasan Campus.

Session Focus

  • ▸Introducing students to embedded systems
  • ▸Demonstrating hardware and software integration
  • ▸Encouraging students to explore hardware innovation

Session Goal

The goal of the session was to inspire students to build their own hardware projects and discover potential career paths in technology.

Interested in my full resume or want to discuss opportunities?

Email me for my resume

officialkobiecalingasan@gmail.com

Credentials

Certifications & Credentials

Professional certifications, course completions, and technical credentials. Building expertise through continuous learning and validation.

Certificates are being digitalized and will be displayed here soon. Check back for professional certifications and course completions.

Coming soon

Project Showcase

Real projects across AI, embedded systems, IoT, web development, and assistive technology.

Filter by Category

All Projects

9 projects
Pyronsense — Fire Detection IoT System screenshot

Pyronsense — Fire Detection IoT System

IoT + AppIoT

An IoT-based fire detection and alert system with a Flutter mobile application for real-time monitoring and notifications.

ArduinoIoT SensorsFlutterFirebase+1
  • Real-time fire and smoke detection
  • Flutter mobile app for remote monitoring
2026Click for details
Room Intelligence Node — Smart Room IoT screenshot

Room Intelligence Node — Smart Room IoT

IoT + AppIoT

An intelligent room monitoring system with IoT sensors and a Flutter app for environmental data tracking and automation.

ArduinoIoT SensorsFlutterReal-time Data+1
  • Environmental monitoring (temperature, humidity)
  • Flutter mobile app interface
2026Click for details
Smart Health Monitoring Gloves screenshot

Smart Health Monitoring Gloves

IoT + AppIoT

A wearable assistive device for gesture communication and remote health monitoring.

Embedded SystemsAndroid StudioPulse Oximeter SensorFlex Sensors+1
  • Gesture-based communication
  • Real-time heart rate and oxygen monitoring
2026Click for details
AI Coding Assistant Chatbot screenshot

AI Coding Assistant Chatbot

AI

A custom Gemini-powered chatbot that supports developers with coding guidance and debugging help.

PythonGemini APINatural Language Processing
  • Interactive coding assistance
  • Code explanation and debugging guidance
2026Click for details
Smart Home Appliance Controller screenshot

Smart Home Appliance Controller

IoT + AppIoT

An IoT-based home automation system with mobile and clap-triggered controls for appliances.

ArduinoIoT CommunicationMobile App Integration
  • Remote appliance control
  • Clap-based gesture activation
2025Click for details
Automated Tagay Machine (Arduino Project) screenshot

Automated Tagay Machine (Arduino Project)

IoT

An Arduino-powered drink dispenser inspired by Filipino social culture and automated pouring logic.

ArduinoEmbedded SystemsServo MotorsLiquid Pump Control
  • Automatic drink dispensing
  • Custom drink configuration
2025Click for details
RFID Smart Attendance System screenshot

RFID Smart Attendance System

IoT

An attendance automation system with RFID logging, environmental sensing, and behavior analytics.

ArduinoRFID ModuleTemperature & Humidity SensorsDesktop Application (Visual Studio)
  • Automated attendance logging
  • Time-in and time-out tracking
2024Click for details
WHORU (Campus Buddy Finder) screenshot

WHORU (Campus Buddy Finder)

Web App

A campus web app for anonymous student matching with consent-based identity reveal.

ReactJavaScriptWeb Development
  • Anonymous student matching
  • Optional identity reveal system
2025Click for details
MIDTECH (PC Marketplace Platform) screenshot

MIDTECH (PC Marketplace Platform)

Web App

A centralized marketplace connecting PC shop owners and buyers across product listings.

HTMLCSSJavaScriptDatabase Integration
  • Multi-seller marketplace system
  • Product listing and browsing
2024Click for details

Additional experimental projects and prototypes are continuously being developed.

Need a deeper walkthrough of any project?

Let's Discuss Your Project

How I Work

My approach to problem-solving, building, and learning—refined through self-taught discipline and real-world projects.

1

Understand the Problem

Before writing a single line of code, I dig deep into the problem. What's the real issue? Who's affected? What's the desired outcome? Understanding comes first.

💡 Clarity before action
2

Research & Explore

I research solutions, study existing approaches, and explore different angles. Self-taught learning means knowing how to find answers—and knowing which answers matter.

💡 Learn what you need, when you need it
3

Build & Iterate

Start simple. Build. Test. Break. Fix. Repeat. I don't wait for perfect—I build working prototypes, gather feedback, and improve continuously.

💡 Progress over perfection
4

Refine & Optimize

Once it works, make it better. Cleaner code. Faster performance. Better UX. I care about the quality of what I ship, not just shipping fast.

💡 Make it work, then make it right
5

Ship & Learn

Deploy. Get it into the real world. Learn from how people actually use it. Every project teaches something new—and the cycle starts again.

💡 Ship, learn, iterate

Core Principles

Logic First, Tools Second

I learned to code without AI or fancy tools. Logic, problem-solving, and understanding fundamentals always come first.

Constraints Breed Creativity

Limited resources forced me to think differently. Now I see constraints as challenges, not barriers.

Always Be Learning

Technology evolves fast. I stay curious, experiment constantly, and never settle for 'good enough.'

Build for Impact

Code isn't just syntax. It's a tool to solve real problems, create value, and make things better.

This process isn't rigid—it's adaptive. Every project teaches me something new, and I refine how I work with each iteration. That's the beauty of being self-taught: you learn to learn.

Let's Connect

Looking for someone who combines technical skills with creative problem-solving? Whether it's a project, collaboration, or just a conversation about tech—I'm ready.

Ready to Build Something Amazing?

I'm currently available for freelance projects, collaborations, and opportunities in web development, cybersecurity, and creative technical solutions. Let's turn your ideas into reality.

Get In Touch

Email

officialkobiecalingasan@gmail.com

GitHub

github.com/Iamkobie

LinkedIn

linkedin.com/in/kobie-calingasan

Discord

Available on request

What I Bring to the Table

Technical Skills

Full-stack development, hardware engineering, cybersecurity, and technical support experience.

Professional Communication

Experience working with North American clients, customer service, and leadership.

Proven Track Record

Award-winning projects, hackathon participation, and real-world work experience.