Kumusta! šŸ‘‹ I'm Dan Chavez

Experienced full-stack developer with a focus on back-end development.

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Skills.

Technologies and tools

  • PHP
  • CodeIgniter
  • Python
  • JavaScript
  • TypeScript
  • HTML
  • CSS
  • MySQL
  • Bootstrap
  • jQuery
  • Git
  • GitHub
  • Node.js
  • Next.js
  • WordPress
  • VS Code
  • AWS
  • GCP
  • Serverless
  • Figma
  • LangChain
  • Adobe Photoshop
  • Styled Components
  • Chrome DevTools
  • NPM
  • Netlify
  • Vercel
  • Replit
  • Astro
  • Canva
  • Streamlit
  • cPanel

Experience.

Logo of xFusion where I worked as a Full Stack AI Engineer
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Full Stack AI Engineer

xFusion August 2024 - February 2025 (7 months)

Collaborates on the development of AI agents for a leading client, including:

Activities

  • Developed an intelligent inbox with Gmail and Slack integration that filters important emails while excluding spam, promotions, social updates, and other non-essential messages. The system includes an AI-powered responder that drafts contextual replies to incoming communications.
  • Enhanced the performance of an AI task management agent that processes customer support communications from Gmail, Slack, and Fireflies, utilizing Python, OpenAI, LangChain, LangGraph, LangSmith, Pydantic, and Node.js and TypeScript with Linear API integration.
  • Optimized an AI email responder agent for Gmail, improving response accuracy and efficiency using Python, OpenAI, LangChain, LangGraph, LangSmith, Pydantic, and Node.js and TypeScript.
  • Developed a customer onboarding workflow to track activity and proactively contact customers about their progress via their CSMā€™s email through Gmail, using Node.js and TypeScript.
  • Developed and deployed AI agents using Serverless architecture on AWS, integrating scalable backend services with Node.js, TypeScript, Python, and AWS Lambda.
  • Built and optimized AI workflows using Python, Node.js, and TypeScript, integrating RESTful APIs for production-level model interaction.
  • Designed and implemented ETL workflows and data pipelines using AWS services to improve performance and cost efficiency.
  • Enhanced AI agent performance through continuous monitoring, testing, and code reviews to ensure reliability and scalability.

Technologies

  • Python Python
  • JavaScript JavaScript
  • Node.js Node.js
  • AWS AWS
  • Serverless Serverless
  • LangChain LangChain
Logo of Develop Kreativity where I worked as a Co-Founder and Project Lead
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Co-Founder and Project Lead

Develop Kreativity November 2023 - Present

I lead the design and development of several projects, creating solutions that meet client needs and transforming their concepts into a reality.

Activities

  • Redesigned Lyons Globalā„¢'s Learning Management System (LMS) using WordPress, integrating interactive modules, document-based resources, video learning, and a user registration with course access approval system.
  • Developed the Lyons Globalā„¢ official website using WordPress, implementing a custom theme, post types, and fields to create a modern, user-friendly interface that highlights the company's expertise in digital health solutions.
  • Developed Bilis Delivery using Laravel and Flutter, a cross-platform food delivery app with real-time tracking, order management, and delivery status updates for delivery riders, restaurants, and customers.
  • Developed Worksuite a web-based system for the management of the company's operations, including customer management and sales tracking using CodeIgniter 4.

Technologies

  • PHP PHP
  • CodeIgniter CodeIgniter
  • JavaScript JavaScript
  • HTML HTML
  • CSS CSS
  • MySQL MySQL
  • WordPress WordPress
  • Figma Figma
  • cPanel cPanel
Logo of Information and Communications Technology Department at University of Southern Philippines Foundation where I worked as a Full Stack Developer
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Full Stack Developer

Information and Communications Technology Department at University of Southern Philippines Foundation June 2023 - Present

I collaborate in the development of system applications for the university and its stakeholders, including an AI/ML chatbot Augi and the USPF Digital app, as well as enhancements to existing system applications.

Activities

  • Developed an all-in-one platform for faculty, students, and guests using CodeIgniter 4 with balance tracking, RFID monitoring, digital ID, chats, and course offerings.
  • Developed a queuing management system using Laravel and Vue.js for cashier, registrar, and other offices offering services with a kiosk integration and virtual 3D campus tour.
  • Built an AI Agent for a ChatSDK that can determine the intent, sentiment, is able to respond to queries, and assess the relevancy of the answers with a QA, with Python, OpenAI, and RAG using a GitHub repository as the knowledge base.
  • Configured a PowerEdge R440 server to host an internal Laravel-based document records management system.

Technologies

  • PHP PHP
  • CodeIgniter CodeIgniter
  • JavaScript JavaScript
  • HTML HTML
  • CSS CSS
  • MySQL MySQL
  • Bootstrap Bootstrap
  • jQuery jQuery
  • cPanel cPanel
  • AWS AWS
  • Git Git
Logo of MyToolz.net where I worked as a Back End Developer
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Back End Developer

MyToolz.net July 2021 - December 2021 (6 months)

I contributed to the design and development of several web tools, including account checkers and content generators, as well as the enhancement of back-end and API infrastructures, improving service speed and the user experience.

Activities

  • Refactored a Blogger website theme implementing a client-side JavaScript function to prevent bypass of links from a built-in link generator.
  • Developed a tool to extract IP Vanish proxy data and validate Stripe API keys.
  • Developed tools to verify proxy servers, check credit card validity, and verify Pureflix accounts.
  • Developed tools to bypass ad link generators such as adf.ly and Linkvertise.
  • Developed an email tool to filter by provider and generate emails using the dot trick.
  • Developed a tool to check Bitcoin wallet balances.
  • Developed key generators for Malwarebytes, Discord Nitro, HMA VPN, and Express VPN.

Technologies

  • PHP PHP
  • JavaScript JavaScript
  • HTML HTML
  • CSS CSS
  • MySQL MySQL
  • jQuery jQuery

Projects.

Logo of Bilis Delivery project

Bilis Delivery

Deliver Items at Your Doorstep
Logo of SentiAI project

SentiAI

TinyBERT for Sentiment Analysis
Logo of Lyons Globalā„¢ project

Lyons Globalā„¢

Lyons Globalā„¢ Website
Logo of IoT Parking System project

IoT Parking System

Arduino Uno R4 WiFi Parking System
Logo of Lyons Globalā„¢ LMS project

Lyons Globalā„¢ LMS

Learning Management System
Logo of Philippine Scripts Translator project

Philippine Scripts Translator

Text to Ancient Philippine Scripts
Logo of Google Translation project

Google Translation

Translate with Google Translate
Logo of USPF Buddy project

USPF Buddy

Conversational Interface Assistant
Logo of AuggieGPT project

AuggieGPT

GPT-powered Chatbot Assistant

Education.

Picture of Science, Technology, Engineering, and Mathematics degree
Strand:

Science, Technology, Engineering, and Mathematics

October 2020 - July 2022 Dumalag Central National High School

Certificates.

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CCS Days 2025 Hackathon

Mrs. Marie Joy Morano-Sanchez March 2025

Contributed the highest points for the team to achieve the overall champion title during the CCS Days 2025 by successfully developing TESTify, an AI exam proctoring system integrated as a tool for Canvas LMS that monitors online exams for cheating using facial and behavioral analysis.

Achievements

  • Hackathon Champion
  • Hackathon - Best Innovative Solution
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CCS Days 2023 Hackathon

Mr. Gian Carlo S. Cataraja, MIT December 2023

Successfully developed CERTify, an AI-integrated system designed to certify and authenticate academic records through advanced AI image analysis, tamper detection, and QR code technology.

Achievements

  • Champion of the Hackathon (1st year-3rd year category)
  • Hackathon Most Promising Innovation (1st year-3rd year category)
  • Hackathon Best-in-Logo (1st year-3rd year category)
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goIT 3rd Place

TCS Digital Innovation Program November 2021

Secured the goIT 3rd place during the TCS Digital Innovation Program as a member of TrackTrace from Dumalag Central National High School, in the Capiz Province Division.

Achievements

  • Developed a digital contract tracing application for COVID-19

Contact.