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Mark Angelo Doctolero

Full Stack Developer

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

Frontend

React.js, Next.js, Angular, TypeScript, JavaScript (ES6+), Tailwind CSS, HTML5, CSS3, Responsive Design

Backend & Databases

Node.js, Python, Rust, Express.js, REST APIs, Authentication, PostgreSQL, MySQL, Supabase

DevOps & Tools

Git/GitHub, Docker, Linux, Cloudflare, Vercel, VS Code, NPM/Yarn

AI & Productivity

Prompt Engineering, LLM Integrations, ChatGPT, Claude, GitHub Copilot, Cursor, Trae IDE, Project IDX

Experience

IT Intern

2025 - 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.

Full Stack Developer (Project-Based)

2024 - 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.

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