Dan Chavez
Building AI agents that handle real conversations, real users, and real scale.
Overview
Full Stack Developer @Aeva AI Receptionist
Social Links
About
- Full Stack AI Engineer with 4+ years of experience building production-grade AI systems, voice AI platforms, and scalable web applications.
- Skilled in React, Node.js, TypeScript, Python, and PHP; shipping AI-powered products serving thousands of users across multiple countries.
- Passionate about architecting multi-agent systems and automation workflows that solve real operational problems at scale.
- Full Stack Developer at Aeva AI Receptionist: AI-powered phone receptionist for healthcare clinics
- ~500 clinics across 5 countries, processing 100+ calls daily
- Voice AI integration with VAPI, Cliniko, and Twilio
- Full Stack & AI Engineer at Tolstoy: multi-agent AI system for interactive video platform
- Serving 10,000+ businesses with sub-3s response times
- Scaled serverless infrastructure 3x (30k→90k monthly requests) at 99.9% uptime
- Founding Engineer at Framework: solo-built AI responder and task manager from zero to production
- 92% response accuracy using RAG architecture
- 99.9% uptime on serverless infrastructure with 40% cost reduction
- Co-founded Develop Kreativity: digital agency serving 15+ clients across healthcare, retail, and technology
- Delivered 30+ projects with AI automation, generating 30% of agency revenue
- Scaled team from 2 co-founders to 10+ across development, design, and marketing
- Active in the developer community as a technical volunteer at AWS Community Day, GDG Cebu, and Pandesal.dev
- Founding member of DEVS100, a curated private network of top developers
- Dean's List (2022–Present) while working full-time across international engineering teams
* Metrics based on production data during tenure; actual current figures may vary.
GitHub Contributions
Stack
Experience
- Spearheading full stack development of Aeva, an AI-powered phone receptionist serving ~500 clinics and processing 100+ calls daily, working closely with the CTO to build the end-to-end call handling platform using React and Node.js hosted on Heroku; enabling 24/7 automated appointment booking, rescheduling, caller identification, and cancellations across Australia, New Zealand, UK, Ireland, and Canada.
- Architected voice AI integration layer connecting VAPI with custom voice models, conversation flows, real-time transcription, and squad-based assistant routing, Cliniko for practice management, and Twilio for telephony; designed multi-provider telephony architecture supporting 5 country-specific configurations with carrier-level call routing and failover.
- Led strategic initiative to migrate backend services and AI agents from Make.com to code after identifying scalability limitations as customer volume grew; completed notification system migration eliminating 100% of previously widespread missed-notification issues across the customer base.
- Driving integration of additional practice management systems including Splose, Halaxy, and Jane App, expanding platform compatibility and broadening addressable market by an estimated 40%.
- React
- Node.js
- Heroku
- VAPI
- Twilio
- Cliniko
- Make.com
- n8n
- OpenAI
- Next.js
- Supabase
- Vercel
- Zapier
- Power Automate
- NLP
- RAG
- AWS Lambda
- Serverless
- Event-driven Architecture
- API Design
- TypeScript
- AWS Lambda
- SQS
- AI Agents
- Linear API
- React Flow
- ETL
- Serverless
- Laravel
- Redis
- WebSocket
- Google Maps API
- Laravel Passport
- Laravel Telescope
- MySQL
- nwidart/laravel-modules
- Next.js
- Laravel
- WordPress
- Make
- Zapier
- Figma
- Adobe Creative Suite
- AI Automation
- LangGraph
- React Native
- Laravel
- Vue.js
- Elasticsearch
- MySQL
- WebSocket
- Pinnacle ERP
- PHP
- AES Encryption
- REST API
- cURL
- Rate Limiting
Education
- Computer Science
- AWS
- OpenAI
- Software Engineering
- STEM
- App Development
Where It All Started
- PHP
- Java
- Smali
- XHTML
- GCP
- Azure
- Reverse Engineering
- Brackets
Projects(12)
An AI simulation panel featuring a game-like top-down view where agents appear as animated characters in a mini-community.
- React
- Node.js
- OpenClaw
- Canvas 2D
- Gemini