Dan Chavez
AI Engineer
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Hello
- Full Stack & AI Engineer with 5+ years of experience building production-grade AI systems, voice AI platforms, and scalable web applications.
- Skilled in React, Next.js, Node.js, TypeScript, Python, and PHP; shipping full-stack, AI-powered products serving thousands of users across multiple countries.
- Passionate about architecting multi-agent AI systems and robust full-stack applications that solve real operational problems at scale.
- Full Stack & AI Engineer at Tolstoy: AI communication 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
- Senior Full Stack Developer at Aeva AI Receptionist: AI-powered phone receptionist for healthcare clinics
- Spearheading end-to-end platform development with the CTO, broadening market reach ~40% by integrating new practice management systems
- Eliminated 100% of missed-notification issues and cut incident resolution 60% by re-architecting core agents from Make.com to Node.js
- Founding Engineer at Framework: solo-built AI responder and task manager from zero to production
- 92% response accuracy using RAG architecture
- Cut infrastructure spend 40% and reduced API timeout errors 85% with circuit-breaker retry logic
- AI Specialist at GoTeam: multi-agent AI automation platform for U.S. client teams
- Reduced operational load 70% with n8n orchestration and intelligent task routing
- Benchmarked LLMs for 40% cost savings while cutting research time 80%
- 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
- Graduated Magna Cum Laude (1.44 GPA), B.S. in Computer Science — University of Southern Philippines Foundation
* Metrics based on production data during tenure; actual current figures may vary.
Trusted by clients
I have worked with many website developers and my experience with this team has been the best. They redesigned our website from scratch in one week!
Client · Lyons Global
great service delivered as promised, Highliy recommend. Professional work done by him
Client · Upwork
We've been really happy with your performance at the company and would love to keep you on board for the long term.
Co-Founder & CTO · Aeva
Dan was our go to full stack engineer on Tolstoy and Framework, and he was especially strong on the AI side. He could take a rough idea, figure out the right approach, and ship something that actually worked in production, not just in a demo. He understands both the model layer and the product around it, which is rarer than people think. On top of that he was reliable and easy to work with. Clear communication, no ego, took feedback well, and kept things moving. I'd work with him again without hesitation.
Tech Lead · Tolstoy & Framework
Blog(2)
The long way to magna cum laudeNew
- Published on
Welcome to dnachavez.dev
- Published on
Stack
Languages
Frameworks & Libraries
Automation
Cloud & DevOps
Design & Tools
Gear(11)
The hardware and tools I use to build, create and stay productive — my desk configuration, daily carry.
Computers
Displays
Desk & peripherals
Experience(9)
Aeva AI Receptionist
- Location
- Auckland, New Zealand
- Location type
- (Remote)
- Employment status
- Current
- Spearheading full-stack development of Aeva, an AI-powered phone receptionist serving ~500 clinics and processing 100+ calls daily, built with React and Node.js on Heroku for 24/7 automated appointment booking, rescheduling, caller identification, and cancellations across Australia, New Zealand, the UK, Ireland, and Canada.
- Architected the 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 across 5 country-specific configurations with carrier-level routing and failover.
- Led migration of backend services and AI agents from Make.com to code, eliminating widespread missed-notification issues and reducing incident resolution time by 60%.
- Driving integration of additional practice management systems (Splose, Halaxy, Jane App) to broaden platform compatibility across allied health clinics.
- React
- Node.js
- Heroku
- Vapi
- Twilio
- Cliniko
- Voice AI
- Real-time Transcription
GoTeam
- Location
- Virginia Beach, VA
- Location type
- (Remote)
- Led design and rollout of a multi-agent AI automation platform for Fox Three Partners across research, analysis, and project management workflows, reducing operational load by 70% for cross-functional U.S. client teams.
- Architected an n8n-based orchestration engine with intelligent task routing using a hybrid event-driven and scheduled approach, eliminating 100% of manual triage.
- Benchmarked OpenAI o4-mini against o3-deep-research for research agents, cutting research time by 80% while identifying 40% cost savings.
- Engineered a financial analysis agent that applies custom validation logic to operational data and returns flexible JSON, cutting parsing failures by 85%.
- Built a comment-triggered automation system with NLP-based intent classification, saving 15+ hours weekly in manual task administration at 95% accuracy.
- Shipped memory-aware document generation agents backed by curated knowledge banks, reducing document turnaround by 90%.
- Wired Zapier-driven synchronization between project management platforms and external databases, improving cross-system data consistency by 95%.
- Architected Next.js conversational agents with Supabase backends on Vercel Edge Functions, doubling content output while maintaining sub-100ms response times.
- Automated two-way calendar sync with Power Automate, eliminating manual calendar duplication and reducing scheduling conflicts by 80%.
- n8n
- OpenAI
- Next.js
- Supabase
- Vercel
- Zapier
- Power Automate
- Prompt Engineering
Framework
- Location
- Cebu City, Philippines
- Location type
- (Remote)
- Owned end-to-end design and solo development of an AI responder system, choosing retrieval-augmented generation (RAG) over fine-tuning to reach 92% response accuracy while cutting implementation time by 60%.
- Architected an AI Task Manager from zero to production with an event-driven architecture, enabling real-time orchestration that reduced customer response cycles by 50%.
- Designed serverless infrastructure on AWS Lambda with concurrency limits and dead-letter queues, maintaining 99.9% uptime while cutting infrastructure spend by 40%.
- Implemented circuit breaker and exponential backoff patterns to prevent cascade failures, reducing API timeout errors by 85%.
- Set technical direction independently as the sole engineer, defining the design patterns, API contracts, and error-handling conventions that later anchored team scaling.
- RAG
- AWS Lambda
- Serverless
- Event-Driven Architecture
- AI
Education
- Graduated Magna Cum Laude with a 1.44 GPA, earning a Bachelor of Science in Computer Science degree.
- Ranked the top graduate of the college among the graduating class, the highest academic standing in the department.
- Earned Dean's List honors in every semester of the program, from enrollment through graduation.
- Authored an undergraduate thesis, "Design and Implementation of a Cloud-Native Artificial Intelligence (AI) Call Center using Amazon Web Services and OpenAI," realized as Conduit — an autonomous voice agent that automates end-to-end call handling on fully serverless AWS infrastructure.
- Shipped 8+ notable projects spanning AI, IoT, and developer tooling:
- Conduit — cloud-native AI call center on AWS and OpenAI (thesis project).
- AuggieGPT, Buddy, and SentiAI — conversational and sentiment-driven AI assistants.
- USPF IoT Parking System — real-time smart-parking platform bridging hardware and cloud.
- CERTIfy, TESTIfy, and SWARMIfy — automation and developer-productivity tooling.
- AWS
- OpenAI
- Cloud-Native Architecture
- Serverless
- AI Agents
- IoT
- Distributed Systems
- Computer Science
- Completed Senior High School under the Science, Technology, Engineering, and Mathematics (STEM) strand.
- Designed and built TrackTrace, a COVID-19 contact-tracing application, earning 3rd Place at the TCS Digital Innovation goIT App Development competition.
- App Development
- Mobile Development
- STEM
- Prototyping
Projects(9)
Built an AI agent simulation panel with a game-like top-down view where agents appear as animated characters moving through a living mini-community.
- Open Source
- TypeScript
- React
- AI Agents
- Simulation
- Docker
Built an AI-powered tool that generates creative, professional titles for academic papers, dissertations, theses, and research documents, powered by Google's Gemini 2.0 Flash.
- Next.js
- TypeScript
- Google Gemini
- Tailwind CSS
Engineered an AI exam proctoring system with facial and behavioral analysis, integrated with Canvas LMS.
- AI
- Computer Vision
- Facial Recognition
- Canvas LMS
- Python
Built a sentiment analysis tool that classifies text into positive, negative, or neutral categories using a fine-tuned TinyBERT model.
- University Project
- Machine Learning
- Python
- TinyBERT
- Transformers
- PyTorch
Awards(6)
- Built SWARMify, an AI simulation panel with a game-like top-down view that renders agents as animated characters in a mini-community
- Developed with React, Node.js, OpenClaw, and Canvas 2D
- Built TESTify, an AI-powered exam proctoring system that closes Canvas LMS security gaps in remote testing
- Engineered a real-time facial recognition and behavioral analysis pipeline with hybrid cloud/edge processing
- Additional awards: Best Innovative Solution
- Built CERTify, an academic credential verification system with integrated AI
- Designed blockchain-inspired document hashing paired with AI-driven fraud detection
- Additional awards: Most Promising Innovation, Best-in-Logo
- Led a team of three senior high school students to build TrackTrace, a COVID-19 contact tracing app
- Guided the team through system design fundamentals and coordinated cross-functional implementation
Certifications(2)
TOPCIT Level 4 (Test of Practical Competency in ICT)
- Issued by
- IITP/Ministry of Science and ICT (Korea)
- Issued on
Google Data Analytics Professional Certificate
- Issued by
- Issued on