Back to Portfolio

Mark Angelo Doctolero

Full Stack Developer

madoctolero1997@gmail.com itsme.madoctolero.dev github.com/pogipotie linkedin.com/in/mark-angelo-doctolero Cagayan, Philippines
Mark Angelo Doctolero

Professional Summary

Bachelor of Science in Information Technology graduate from Cagayan State University with a strong foundation in full-stack web development, including frontend technologies, backend development, and database management. Detail-oriented and passionate about building responsive, user-friendly, and maintainable applications. Skilled in leveraging AI-powered development tools to improve productivity, streamline workflows, and support efficient software development.

Technical Skills

Core Stack

React.js, Next.js, TypeScript, JavaScript (ES6+), Tailwind CSS, HTML5, CSS3, Node.js, Supabase, PostgreSQL, REST APIs

Also Worked With

Python, PHP, C# / .NET, Angular, Rust, Express.js, MySQL, SQLite, PyQt6

Tools & Infrastructure

Git/GitHub, Docker, Vercel, Cloudflare, Linux, AI-assisted development (GitHub Copilot, Claude, Cursor)

Experience

Junior Full Stack Developer (Project-Based)

December 2025 – June 2026

Downstream Technologies

  • Developed and maintained the DownStream POS System with inventory and sales management features.
  • Built the BambooHub E-Commerce Platform for Tangkiran E-Mart with real-time inventory tracking and secure payment integration.
  • Implemented technical solutions and optimized application performance across municipal and retail systems.

IT Intern

December 2025 – April 2026

First Cagayan Converge Data Center, Inc.

  • Assisted in data center operations and network infrastructure maintenance.
  • Managed technical documentation and supported IT ticketing systems.
  • Collaborated with the networking team to troubleshoot connectivity issues.

Projects

2024 – 2026

Academic & Personal

  • E-Attendance System: Developed a mobile and web-based attendance management system with real-time monitoring and reporting.
  • Cagayan Valley Anglers Membership Platform: Created a membership management platform for a non-profit community organization.
  • Internship Management System: Developed a web-based internship tracking and management system.
  • Networking Utilities: Built SubnetTool Pro to improve network administration and productivity.

Education

Bachelor of Science in Information Technology and Computing Sciences

Cagayan State University – Gonzaga Campus

2023 – 2026
  • Coursework focused on Web Development, Software Engineering, Networking, Database Systems, and AI Integration