About Me
Professional Summary
Software Engineer and AI Developer with 3+ years of experience building scalable systems and AI-powered applications. Currently focused on developing MCP servers, RAG pipelines, and LLM integrations using LangChain, Mastra, and FastMCP. Experienced in data ingestion workflows with Airflow, vector databases, and intelligent querying systems. Strong full-stack foundation with Laravel, Svelte, and Docker. Driven by clean architecture, continuous learning, and delivering impactful AI solutions.
Core Values
Proactivity
Taking initiative and driving projects forward
Teamwork
Collaborating effectively with cross-functional teams
Continuous Growth
Passionate about learning and professional development
Languages
SpanishNative
EnglishB2
PortugueseB2
GermanA1
Beyond the Code
- Piano & Guitar
- Music Production
- Mathematics
- Community Outreach
- Continuous Learning
Professional Experience
Building AI solutions and scalable web applications in professional environments
Key Achievements
- Developing MCP (Model Context Protocol) servers using Mastra and FastMCP for a US-based B2G intelligence company
- Building AI-powered integrations and tooling for government intelligence workflows
Key Achievements
- Implemented Airflow-based data ingestion pipeline for periodic loading into vector database, serving contextual data for a RAG system
- Built RAG pipelines with LangChain featuring hybrid search (semantic + lexical) with pgvector and Elasticsearch
- Developed backend services and AI pipelines with FastAPI and Laravel
Notable Projects
RAG Platform for HR Teams
AI-powered Retrieval-Augmented Generation platform enabling HR teams to search resumes that best match job descriptions through iterative improvements.
Code Chatbot Assistant
Conversational assistant for Advanced RAG Architecture training, capable of indexing project files and documentation for contextualized code support.
Key Achievements
- Developed a Laravel-based system integrating Mercado Libre's OAuth for seller authentication and order/shipping data retrieval
- Built frontend interfaces using Svelte 5; containerized applications with Docker
- Achieved 3x query performance improvement for supply chain integration
Notable Projects
Mercado Libre API Integration
End-to-end integration with Mercado Libre's APIs featuring OAuth2 authentication and real-time order/shipment synchronization.
Key Achievements
- Managed support tickets with Redmine; maintained 60+ computers across multiple labs
- Coordinated lab scheduling and software maintenance for 20+ university courses
Key Achievements
- Designed responsive websites with WordPress and Elementor for multiple clients
Projects & Skills
Explore my projects filtered by the technologies and skills I use
Filter by technology
55 technologies available
All Projects
Sonli is a mobile-first platform for worship teams. It centralizes a song library with chords/key/tempo, lets leaders build service and rehearsal setlists, schedules musicians with attendance tracking, and works fully offline with automatic sync once back online. Designed in collaboration with Iglesia Jesucristo Mi Esperanza (Sunchales, Argentina) and rolling out to user testing in May 2026, with a wider church-team launch in July 2026.
Technologies Used
React Native
TypeScript
Offline SyncREST API
PostgreSQLKey Features
- Song library with chord notation, key transposition, tempo and time signature
- Service & rehearsal setlists with duration tracking
- Musician scheduling and attendance coordination
- +1 more features
RAG Platform for HR Teams
AI-powered Retrieval-Augmented Generation platform enabling HR teams to search resumes that best match job descriptions through iterative improvements.
Technologies Used
Python
FastAPI
LangChainOpenAIGemini APIPostgreSQL
pgvector
ElasticsearchspaCyKey Features
- Hybrid search combining semantic and lexical retrieval
- Metadata extraction with deterministic and LLM-based approaches
- Two-stage retrieval with cross-encoder re-ranking
- +1 more features
Code Chatbot Assistant
Conversational assistant for Advanced RAG Architecture training, capable of indexing project files and documentation for contextualized code support.
Technologies Used
PythonLangChainFastAPIStreamlitApache AirflowColBERTGeminiKey Features
- Conversational memory with buffer and summary strategies
- Semantic and agentic chunking optimization
- RouteChains for diverse use cases
- +1 more features
Mercado Libre API Integration
End-to-end integration with Mercado Libre's APIs featuring OAuth2 authentication and real-time order/shipment synchronization.
Technologies Used
Laravel
Svelte 5PostgreSQL
SQL ServerOAuth2
DockerKey Features
- Secure OAuth2 authentication with automated token refresh
- RESTful API for order/shipment data retrieval
- Svelte 5 frontend interfaces
- +1 more features
Education & Learning
Academic foundation and continuous professional development
Formal Education
Systems Engineering (expected 2026)
Universidad Tecnológica Nacional
2020 – PresentSanta Fe, ArgentinaFinal project: Mobile app for music resource management for bands
Theological Studies
Instituto Bíblico Jorge Müller (IBJM)
2022 – 2025ArgentinaCompleted
Bilingual Assistant (Spanish-English)
E.E.T.P. N° 279 'Teniente Benjamín Matienzo'
2019ArgentinaCompleted
Courses & Certifications
LangChain for LLM App Development
DeepLearning.AI
2025Pydantic for LLM Workflows
DeepLearning.AI
2025Vector Databases: Embeddings to Applications
DeepLearning.AI
2025Building and Evaluating Advanced RAG
DeepLearning.AI
2025LangChain Chat with Your Data
DeepLearning.AI
2025NLP, Generative AI & Knowledge Graphs
Folder IT
2024German A1 Level
Ikaruga
2024Cambridge PET
Cambridge
2019Advanced Portuguese
Fundación Sancor Seguros
2017
Volunteering
- Active service at IJME, Sunchales (2015–2021, 2025 – present)
- Music service, networking & customer service at summer camps at WOL Argentina (2019, 2022–2025)
- Music service at JEA Santa Fe (2022–2025)
Certifications
LangChain · RAG · Vector DBs · Pydantic
NLP/GenAI · Cambridge PET · German A1 · Portuguese
Let's Connect
Ready to collaborate? Let's discuss how we can bring your ideas to life.
Get in Touch
I'm always open to new opportunities, projects, or collaborations. Feel free to reach out through any of the channels below.
Email Address
jphuaco@gmail.comGitHub
github.com/juanhuacoLocation
Santa Fe, ArgentinaSend a Message
I typically respond within 24–48 hours.