Building the portfolio

Ericson Mark Guanzon
Python
Django
PostgreSQL
Linux

Programmer in Masbate, Philippines | Web, Mobile, Automation, and Business Systems

I am

Software Developer

Web apps that don't just work - they're secure.

I build practical web applications, mobile apps, dashboards, automation tools, and business systems with performance, security, and real-world reliability in mind.

About Me

I'm a software developer and backend-focused builder focused on practical business applications, automation tools, and production-ready web systems in Masbate, Philippines. I work mainly with Django, Django REST Framework, PostgreSQL, MySQL, React Native, and Linux server deployment.

  • Builds backend systems, APIs, dashboards, billing tools, inventory workflows, analytics, and mobile support apps.
  • Deploys production apps with Ubuntu, Nginx, Gunicorn, systemd, Cloudflare, SSL, logs, and automated backups.
  • Applies security-first practices: authentication, RBAC, input validation, HTTPS, secure headers, environment secrets, and OWASP awareness.
80%

Less Manual Maintenance

Reduced manual server maintenance through Linux backup automation using Bash, rsync, and Samba.

99%+

Production Reliability Target

Maintained deployed Django applications on Linux production environments.

2024-Present

Production Developer

Working on real business systems, ISP billing tools, web apps, and mobile support workflows.

Tech Stack

Tools I use to build secure and deployable systems.

Backend

Python, Django, Django REST Framework, Flask, FastAPI, Django Ninja, Celery, WebSockets

Database

PostgreSQL, MySQL, SQLite, Redis, MSSQL basics, reporting queries, validation workflows

Infrastructure

Linux, Ubuntu, Nginx, Gunicorn, systemd, Docker, Cloudflare, SSL, Bash scripting

Frontend and Mobile

HTML, CSS, JavaScript, React, React Native, Expo, Kivy, KivyMD, Figma

Selected Projects

Real-world products, not decoration.

Each project includes a real screenshot and a direct path for recruiters to inspect the work.

Deployment

I deploy and maintain Django apps on Ubuntu/Linux servers using Nginx, Gunicorn, systemd, SSL certificates, DNS records, domain configuration, logs, and automated backups.

Security

I apply input validation, secure authentication, RBAC, HTTPS, secure headers, environment-based secrets, least privilege, server hardening basics, and OWASP Top 10 awareness.

Experience

Hands-on work across business systems, ISP platforms, and production deployment.

2024-Present

Full Stack Developer - BillingKo IT Solutions

Django REST APIs, ISP billing interfaces, QR attendance, real-time notifications, Linux backup automation, and mobile tools.

2018-2025

Freelance Web Developer and Programming Tutor

Learning platforms, AI-assisted quiz systems, WebSocket features, capstone deployments, and programming mentoring.

Operations

Family Business Tech Work

POS operations, inventory monitoring, cash handling, customer service, and real small-business workflow exposure.

Certifications

Credentials, awards, and continuous learning.

Certifications and recognitions from training, cybersecurity learning, data analytics, and practical IT competency programs.

Awards & Recognitions

  • Programming Competition Champion Academic Programming Competition
  • TOPCIT Level 2 Test of Practical Competency in IT - 2024
  • DICT Diagnostic Exam Passer Department of Information and Communication Technology - 2024
  • iSITE Member Integrated Society of Information Technology Enthusiasts - 2024

Core Certifications

  • Certificate of Competency Test of Practical Competency in IT (TOPCIT) - 2024
  • Python Programming Essential Course Department of Information and Communication Technology - 2024
  • Get Connected Cisco Networking Academy - 2024
  • Introduction to Cybersecurity Cisco Networking Academy - 2026

Data Analytics Training

  • Data Analyst: Get Started with Python DTI Masbate-Sorsogon Google Learning Program - 2023
  • Go Beyond the Numbers: Translate Data into Insights DTI Masbate-Sorsogon Google Learning Program - 2023
  • Process Data from Dirty to Clean DTI Masbate-Sorsogon Google Learning Program - 2024

Technology & Security Learning

  • Discovering Godot: Introductory Guide to Game Development Department of Information and Communication Technology - 2024
  • Unlocking Your Cybersecurity Career DICT cybersecurity career learning session - 2024
  • Strategic Insights: The Role of AI in Shaping Tomorrow's Business Landscape Department of Information and Communication Technology - 2024

Contact

Need a developer who can turn product ideas into working systems?

I am Ericson Mark Abayon Guanzon, a software developer who can work across web apps, mobile apps, backend systems, databases, deployment, automation, and business-focused tools.

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Project Case Study

Project details