Kumusta! 👋 I'm Dan Chavez

Full Stack Engineer and AI Engineer with expertise in |.

2+ Years of
experience
Calculating... Lines of
code written
1k+ Cups of coffee
consumed

Resume Contact

Skills.

Technologies and tools

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

Experience.

Full Stack AI Engineer

xFusion August 2024 - March 2025 (8 months)

Activities

Developed a multi-agent AI responder system that generates contextual replies from multiple sources, boosting response accuracy by 65% and reducing drafting time by 75%.

Implemented prompt engineering, evaluation metrics, and agentic decision logic improving AI agent performance.
Built an AI-powered inbox with a responder agent that filters low-priority messages across platforms, reducing management time by 40% by enabling users to handle all communications in one place.
Re-architected the serverless stack to auto-scale with concurrent, queue-based processing, enabling it to handle 3x the original request volume.
Optimized serverless code execution, resource allocation and third-party calls, cutting infrastructure costs by 20%.
Integrated an AI agent with Linear's API to automate 80% of task management, reducing manual workload by 30% and raising ticket resolution speed and customer satisfaction by 25%.
Developed parallel ETL pipelines that support batch and concurrent processing of emails, messages, and transcripts.
Optimized data flow to minimize errors and prevent data loss, boosting AI-agent performance and reliability by 45%.
Mentored junior developers through onboarding, task guidance, and ongoing support, reducing bugs by 35%.
Introduced and leveraged AI development tools to accelerate individual and team productivity, enabling faster task completion and higher daily progress.
Prototyped an automated customer-onboarding system that tracked progress and engaged customers through CSM accounts by sending weekly checkpoints and follow-ups.
Helped lay the foundation for the company's no-code AI workflow builder, enabling non-technical users to create custom automations and agents through a visual, node-based interface.

Technologies

Python
JavaScript
Node.js
AWS
Serverless
LangChain/LangGraph/LangSmith

Lead Full Stack Developer

Bilis Delivery April 2024 - Present

Activities

Built a food-delivery platform that processed 10,000+ orders from 2,000+ users in its first year, leveraging Laravel queues and Redis for asynchronous workloads while maintaining 99.9% uptime at peak traffic.

Added real-time order tracking and notifications via WebSockets and the Google Maps API, enabling customers to monitor deliveries through push, SMS, in-app, and email alerts.
Integrated COD, credit-card, and in-app-wallet payments with secure transactions using Laravel Passport and OTP verification.
Created a zone-based driver-matching algorithm that filters drivers by location, vehicle compatibility, and live availability, accelerating driver assignment by 80%.
Scaled the backend by optimizing queries, adding indexes, and caching hot data in Redis, significantly reducing page-load times.
Employed batch processing, atomic transactions, and efficient upsert operations to handle 100+ concurrent orders during peak hours.
Designed a multi-guard authentication scheme with Laravel Passport and custom session-based guards for customers, drivers, vendors, and admins.
Implemented granular, module-level RBAC, with roles and permissions defined through JSON-configured modules in the database.
Structured the backend as a modular monolith using service interfaces and the nwidart/laravel-modules package to encapsulate business logic.

Technologies

PHP
Laravel
Flutter
JavaScript
MySQL
Firebase
Google Maps API

Co-Founder & Project Lead

Develop Kreativity November 2023 - Present

Activities

Revamped Lyons Global™'s learning-management system by migrating to modern WordPress and adding interactive modules with Tutor LMS and Restrict Content Pro.

Implemented approval-based registration, quizzes, activities, and checkpoints in the LMS, cutting onboarding time by 60% and boosting user engagement by 45%.
Redesigned Lyons Global™'s website, overhauling the UI/UX from Figma wireframes and enabling rapid iterations for faster development.
Built custom components in Elementor Pro—including a bespoke header and footer—and created custom post types for publications.
Optimized Lyons Global™'s site performance with responsive design and streamlined content management, raising the PageSpeed Insights score from 65 to 92.

Technologies

PHP
WordPress
JavaScript
HTML
CSS
MySQL
Figma

Full Stack Developer

University of Southern Philippines Foundation July 2023 - Present

Activities

Developed a multi-agent AI chat system using a state-graph pipeline that delivers automated, context-aware responses, achieving 85% query-resolution accuracy and reducing support requests by 40%.

Built a university app that boosted service access by 35% by integrating digital ID/RFID tracking, statement-of-account retrieval from Pinnacle, and online payments through UnionBank and MLhuillier.
Reduced average wait times at university service offices by 80% by developing a queuing management system that replaced manual queues.
Upgraded a PowerEdge R440 server and locally deployed a document-records management system, eliminating manual storage and sharing and improving inter-departmental workflow by 60%.

Technologies

PHP
CodeIgniter
Laravel
Vue.js
Ionic
Python
JavaScript
MySQL
AWS

Back End Developer

MyToolz July 2021 - December 2021 (6 months)

Activities

Improved a high-traffic Blogger-based link locker by using an externally hosted API endpoint to securely handle URL masking using server-side encryption and database ID mapping, replacing insecure client-side base64 masking.

Integrated strict referrer validation to ensure only legitimate requests from the Blogger site could access protected content, resulting in a 70% reduction in content theft.
Developed a PHP-based API toolkit as a collection of custom tools, including proxy validation (via cURL and provider APIs), email validation and filtering with regex, cryptocurrency balance checks, and account verification.
Migrated core validation and utility features from third-party APIs to in-house solutions, reducing external API calls by 40% and improving system reliability.

Technologies

PHP
JavaScript
HTML
CSS
MySQL
jQuery

Projects.

ThinkOfATitle

AI-Powered Title Generator

Bilis Delivery

Deliver Items at Your Doorstep

SentiAI

TinyBERT for Sentiment Analysis

Lyons Global™

Lyons Global™ Website

IoT Parking System

Arduino Uno R4 WiFi Parking System

Lyons Global™ LMS

Learning Management System

Philippine Scripts Translator

Text to Ancient Philippine Scripts

Google Translation

Translate with Google Translate

USPF Buddy

Conversational Interface Assistant

AuggieGPT

GPT-powered Chatbot Assistant

Education.

Degree:

Bachelor of Science in Computer Science

August 2022 - Present University of Southern Philippines Foundation

Strand:

Science, Technology, Engineering, and Mathematics

October 2020 - July 2022 Dumalag Central National High School

Certificates.

Google Data Analytics Professional Certificate

Google April 2024

Completed comprehensive 8-course program covering end-to-end data analytics processes including data preparation, transformation, analysis, visualization, and strategic insights presentation. Developed advanced proficiency in SQL, R programming, and Tableau for enterprise-grade analytics solutions.

Achievements

Implemented advanced data cleaning techniques and statistical analysis methodologies
Engineered complex SQL queries for efficient data extraction and transformation
Developed statistical models and data pipelines using R programming
Designed executive-level dashboards and visualizations for data-driven decision making

1 / 3

CCS Days 2025 Hackathon

USPF College of Computer Studies March 2025

Led the development of TESTify, an AI-powered exam integrity platform integrated with Canvas LMS that leverages computer vision and machine learning to detect academic dishonesty through facial recognition and behavioral pattern analysis, securing the Overall Champion award.

Achievements

Awarded Hackathon Champion for technical excellence and solution completeness
Recognized with Best Innovative Solution for pioneering AI-based proctoring technology

1 / 3

CCS Days 2023 Hackathon

USPF College of Computer Studies December 2023

Built CERTify, an authentication system that implements blockchain-inspired verification, AI-powered forgery detection, and cryptographic security to ensure document integrity for academic credentials.

Achievements

Awarded Champion of the Hackathon for the 1st year-3rd year category
Awarded Most Promising Innovation for market-ready solution addressing real-world credential verification challenges
Recognized for brand identity excellence with Best-in-Logo award

goIT 3rd Place

TCS Digital Innovation Program November 2021

Developed a scalable COVID-19 contact tracing platform as technical lead for TrackTrace, securing 3rd place recognition in the TCS Digital Innovation Program competition against teams from across Capiz Province.

Achievements

Designed and implemented full-stack contact tracing solution with geolocation and exposure notification system

Contact.

Send me an email: dna.chavez@outlook.com
My LinkedIn account: /in/dnachavez
My Github account: /dnachavez
My Instagram account: @dnachavez
My TikTok account: @dnachavez
My X account: @dnachavez_dev