Daniel Castillo
AI Engineer
Burbank,CA
Summary
Results-oriented AI Solutions Developer with expertise in solution architecture and workflow automation. Delivered high-impact AI systems that enhanced operational efficiency and client engagement. Drove measurable outcomes through innovative lead reactivation strategies, fostering collaboration and effective stakeholder management.
Overview
3
3
years of professional experience
Work History
AI Solutions Developer
FutureRise AI
Burbank
01.2023 - Current
- Built enterprise-scale AI voice and routing system for 12,000 calls/day and 500+ concurrent conversations, incorporating dynamic buyer routing, failover logic, and real-time performance tracking, ensuring seamless communication and support.
- Led a multi-channel automation suite for a cryptocurrency education business serving 25,000+ students and 50K–60K legacy leads: AI qualification, 6-month nurture campaigns, and presentation booking logic (live vs pre-recorded) to process 1,000+ leads/day and unlock $2M–$4M revenue potential from reactivation.
- Delivered a self-service AI image generation platform for a manufacturing/e-commerce catalog with 3,000+ SKUs, generating 10–12 images per product (template-driven variants across Amazon/Walmart/Shopify/BigCommerce-style requirements) and reducing asset cost to ~$0.25/image.
- Shipped an automated database reactivation system for a real estate team, processing 2,100 dormant leads in 3 weeks, booking 23 qualified appointments, and contributing to 4 closed transactions / $62K commission revenue (reported).
- Deployed luxury booking AI phone agent for high-ticket service provider (avg transaction $4K–$20K), eliminating missed calls and preventing double-bookings through real-time availability checks, safeguarding $40K–$60K/month in potential revenue.
- Owned end-to-end delivery: discovery → architecture → build → testing → training + documentation; positioned projects around measurable outcomes
Skills
Architecture & Systems Automation & Orchestration APIs & Integrations Conversational AI & Voice Systems Tool/Platform Keywords Delivery & Documentation
- Solution Architecture, System Design, Integration Architecture, Enterprise Integration, Technical Requirements Gathering, Proof of Concept (POC), Architecture Blueprinting, Scalability, Performance Optimization, High Availability, Disaster Recovery, Observability, Reliability Engineering
- Workflow Orchestration, Workflow Automation, Event-Driven Automation, Process Automation, Automation Frameworks, Batch Processing, Queue Management, Concurrency, Error Handling, Retry Logic, Rate Limiting
- REST APIs, Webhooks, API Integration, API Design, JSON Transformation, OAuth, Data Mapping, ETL/Data Pipelines, Systems Integration
- API Management
- Conversational AI, Voice AI, Dialogue Management, Call Routing, IVR Design, Speech Synthesis (TTS), Call Automation, Lead Qualification, Appointment Scheduling Automation
- n8n, Makecom, Twilio (Voice/SMS), Retell AI, Vapi, ElevenLabs, Airtable, OpenAI (GPT-4), Claude, Google Calendar API, Gmail API
- Technical Documentation, Client Enablement, Training Materials, Stakeholder Management, Cross-Functional Communication, Implementation, Deployment, Support/Operations
Project Highlight
- Custom AI Agent for Customer Service, Developed a custom AI agent for an e-commerce client, reducing customer service response times by 50% and improving customer satisfaction. Integrated the agent with their CRM and Zendesk platforms to handle inquiries and resolve issues autonomously.
- AI Workflow Automation for SaaS Company, Built an AI-powered workflow automation system that integrated with Slack and Google Workspace, automating daily administrative tasks, saving 15+ hours per week for the client's team.
- AI-Powered Multi-Agent System for Lead Generation, Created a multi-agent AI system for a B2B SaaS company to automate lead generation, qualification, and follow-ups, which increased their lead conversion rate by 30%.
Availability
Open to both short-term and long-term projects, with a preference for fixed-price contracts and hourly work.
Education Certification
- AI & Automation Specialist, Self-Taught, Extensive self-study and hands-on experience in AI automation, conversational AI, and machine learning technologies.
- AI for Business, Coursera, Certificate in AI applications for business transformation and process automation.
- AI for Business, Coursera, Certificate in Python programming for machine learning and AI development.
Technical Skills
OpenAI GPT-4, Claude, Google Gemini, Llama 2/3, Hugging Face, Cohere, Zapier, Make.com, n8n, ActivePieces, Webhooks, Bubble.io, FlutterFlow, Voiceflow, Botpress, Python, JavaScript, TypeScript, Node.js, React, Next.js, FastAPI, Flask, LangChain, Pinecone, Weaviate, ChromaDB, Qdrant, OpenAI Assistants API, AWS (Lambda, EC2, S3), Google Cloud Platform, Azure, Vercel, Netlify, Salesforce, HubSpot, Zoho CRM, Airtable, ClickUp, Stripe, Twilio, SendGrid, Mailchimp, Python, JavaScript, TypeScript, Node.js, React, Next.js, Flask, FastAPI, Streamlit, Gradio, PostgreSQL, MongoDB, Pinecone, ChromaDB, Weaviate
Languages
English
Native/ Bilingual
Spanish
Professional
French
Elementary
Timeline
AI Solutions Developer
FutureRise AI
01.2023 - Current