Mat Jerico Sergio

Web Development Engineer based in Bacoor, Cavite, PH. I build internal web systems and lead application initiatives primarily with PHP (CodeIgniter/Laravel), MySQL, and pragmatic front-end stacks while adopting Next.js/React for new work.

GitHub LinkedIn mjsergio@sdca.edu.ph

Experience

  1. St. Dominic College of Asia — Management Information System Head

    Full-time · On-site · Bacoor, Calabarzon, Philippines

    Aug 2024 – Present · 1 yr 1 mo

    • Lead MIS operations and application development; own roadmaps and stakeholder alignment.
    • Oversee PHP/CodeIgniter platforms, Web Services APIs, and OOP best practices.
    • Drive Agile project management and process improvements (Six Sigma).

    Skills: PHP · CodeIgniter · VB.NET · Web Services API · OOP · Agile PM · Six Sigma

  2. St. Dominic College of Asia — System Analyst (concurrent)

    Full-time · On-site

    Aug 2024 – Present · 1 yr 1 mo

    • Program and software system analysis for departmental tools and integrations.
    • Translate business needs into clear technical specs and acceptance criteria.

    Skills: Program Analysis · Software System Analysis

  3. Business Development Application Lead

    Full-time · On-site

    Feb 2024 – Aug 2024 · 0 yr 6 mos

    Led cross-functional web development using the PHP MVC stack; translated business requirements into scalable solutions for school administrative systems.

    • Designed & implemented apps improving efficiency and UX for students, instructors, and staff.
    • Owned end-to-end lifecycles; met deadlines while upholding QA and security.
    • Maintained & optimized CodeIgniter (CI3) systems; reduced downtime and risk.

    Skills: PHP · CodeIgniter · MySQL · Git · Project Management · Data Analysis · Agile PM · Six Sigma

  4. Web Developer Engineer

    Contract · On-site

    Aug 2023 – Feb 2024 · 7 mos

    • Developed responsive MVC web apps with PHP/CodeIgniter, MySQL, HTML/CSS, JavaScript.
    • Version control and collaboration with Git; ensured content and UX quality.

    Skills: PHP · CodeIgniter · MySQL · HTML · CSS · JavaScript · Responsive Web Design · Git · MVC

  5. Web Development Intern

    Apprenticeship

    Jul 2022 – Jul 2023 · 1 yr 1 mo

    Built a web-based property management catalogue for the Property Management Office to streamline material requisition across departments; continued maintaining and improving SDCA web systems.

    • Applied web dev/maintenance skills in a live environment (security, performance, reliability).
    • Hands-on with data management, networking, and information security fundamentals.

    Skills: PHP · CodeIgniter · MySQL · HTML · CSS · JavaScript · Git/GitHub · Web Content

Total Experience Length

  • 3 yrs 1 mo

Skills

  • PHP
  • CodeIgniter (CI3)
  • Laravel
  • MySQL
  • JavaScript
  • HTML/CSS
  • Responsive Web Design
  • Git/GitHub
  • Web Services API
  • OOP
  • Agile Project Management
  • Six Sigma
  • VB.NET
  • System Analysis
  • Next.js/React

Latest posts & projects

What I Build & Where I’m Headed

What I Build & Where I’m Headed

August 27, 2025

Currently diving into React/JS and standardizing on Next.js (no shipped Next.js projects yet). Most deliveries are CodeIgniter 3 systems using Bootstrap, jQuery, Chart.js, and MySQL. Core maintainer of WEBDOSE (SIS for HE/GS/SoM), Canvas CSV integration, RFID turnstiles, queuing, property/inventory, and attendance—serving registrar, admissions, program chairs/deans, and students.

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