Juan Huaco · Software Engineer & AI Developer

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

Spanish
Native
English
B2
Portuguese
B2
German
A1

Beyond the Code

Piano & Guitar
Music Production
Mathematics
Community Outreach
Continuous Learning

Professional Experience

Building AI solutions and scalable web applications in professional environments

Python

Mastra

FastMCP

MCP Protocol

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

Notable Projects

MCP Server for Public-Sector Market Intelligence

MCP server that plugs AI assistants straight into a public-sector market intelligence platform, so an assistant can bring real contracts, active bids and agency spending into the conversation instead of the user leaving to look them up.

Python

LangChain

Airflow

FastAPI

pgvector

Elasticsearch

Docker

PostgreSQL

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.

Interested in my journey? Connect on LinkedIn →

Projects & Skills

Explore my projects filtered by the technologies and skills I use

All Projects

6 of 6 projects

MCP Server for Public-Sector Market Intelligence

Featured

AI Developer · Folder IT·Oct 2025 – Present

Ongoing

Key Features

One of the lead developers, owning architecture decisions
Exposes contract, bid and agency spending data to AI assistants
Also a developer on the platform's natural-language search assistant
Designed to run inside the workflows where decisions already happen

Sonli · Worship Ministry, Organized

Featured

Personal Project·Founder & Lead Developer

User testing

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 Sync

REST API

PostgreSQL

Key Features

Song library with chord notation, key transposition, tempo and time signature
Service & rehearsal setlists with duration tracking
Musician scheduling and attendance coordination
Offline-first with automatic server sync upon reconnection

biblelinked · Interactive gospel map

Featured

Personal Project

Live

Interactive map of how passages across the four gospels relate to each other. 526 sections and 133 sets of parallels, curated by hand, laid out as a graph you can explore. The dataset holds because of one rule, checked automatically: every verse of every gospel belongs to exactly one section. Bible text is the RVR1909, in the public domain.

Technologies Used

Next.js

React

TypeScript

Tailwind CSS

React Flow

Zod

Key Features

526 gospel sections and 133 sets of parallels curated by hand
Coverage validation: every verse in exactly one section
Interactive graph of 526 nodes, tuned to avoid dropped frames
Static export with a separate root per language

RAG Platform for HR Teams

Backend Developer · Folder IT·Jun 2025 – Oct 2025

AI-powered Retrieval-Augmented Generation platform enabling HR teams to search resumes that best match job descriptions through iterative improvements.

Technologies Used

Python

FastAPI

LangChain

OpenAI

Gemini API

PostgreSQL

pgvector

Elasticsearch

spaCy

Key Features

Hybrid search combining semantic and lexical retrieval
Metadata extraction with deterministic and LLM-based approaches
Two-stage retrieval with cross-encoder re-ranking
Evaluation with Ragas for precision/recall optimization

Code Chatbot Assistant

Backend Developer · Folder IT·Jun 2025 – Oct 2025

Conversational assistant for Advanced RAG Architecture training, capable of indexing project files and documentation for contextualized code support.

Technologies Used

Python

LangChain

FastAPI

Streamlit

Apache Airflow

ColBERT

Gemini

Key Features

Conversational memory with buffer and summary strategies
Semantic and agentic chunking optimization
RouteChains for diverse use cases
Automated periodic file ingestion

Mercado Libre API Integration

Full Stack Developer · Folder IT·Feb 2025 – Jun 2025

End-to-end integration with Mercado Libre's APIs featuring OAuth2 authentication and real-time order/shipment synchronization.

Technologies Used

Laravel

Svelte 5

PostgreSQL

SQL Server

OAuth2

Docker

Key Features

Secure OAuth2 authentication with automated token refresh
RESTful API for order/shipment data retrieval
Svelte 5 frontend interfaces
Real-time shipment status updates

Explore more on GitHub →

Education & Learning

Academic foundation and continuous professional development

Formal Education

Systems Engineering (expected 2026)
Universidad Tecnológica Nacionalopens in a new tab
2020 – PresentSanta Fe, Argentina
Final project: Mobile app for music resource management for bands
Bachelor's Degree in Theology
Universidad Cristiana Logosopens in a new tab
2026 – PresentJacksonville, United States · Remote
In progress · agreement with IBJM
Theological Studies
Instituto Bíblico Jorge Müller (IBJM)opens in a new tab
2022 – 2025Argentina
Completed
Bilingual Assistant (Spanish-English)
E.E.T.P. N° 279 'Teniente Benjamín Matienzo'
2015 – 2019Argentina
Completed

Courses & Certifications

LangChain for LLM App Development
DeepLearning.AI
2025
Pydantic for LLM Workflows
DeepLearning.AI
2025
Vector Databases: Embeddings to Applications
DeepLearning.AI
2025
Building and Evaluating Advanced RAG
DeepLearning.AI
2025
LangChain Chat with Your Data
DeepLearning.AI
2025
NLP, Generative AI & Knowledge Graphs
Folder IT
2024
German A1 Level
Ikaruga
2024
Cambridge PET
Cambridge
2019
Advanced 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

DeepLearning.AI (2025)

LangChain · RAG · Vector DBs · Pydantic

Other Certifications

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.com

linkedin.com/in/juanhuaco

GitHub

github.com/juanhuaco

Location

Santa Fe, Argentina

I typically respond within 24–48 hours.

Juan HuacoBuilding scalable systems and AI-powered applications.

About Me

Professional Summary

Core Values

Proactivity

Teamwork

Continuous Growth

Languages

Beyond the Code

Professional Experience

AI Developer

Key Achievements

Notable Projects

MCP Server for Public-Sector Market Intelligence

Backend Developer

Key Achievements

Notable Projects

RAG Platform for HR Teams

Code Chatbot Assistant

Full Stack Developer

Key Achievements

Notable Projects

Mercado Libre API Integration

Laboratory Management Assistant

Key Achievements

Web Developer

Key Achievements

Projects & Skills

Filter by technology

All Projects

MCP Server for Public-Sector Market Intelligence

Key Features

Sonli · Worship Ministry, Organized

Technologies Used

Key Features

biblelinked · Interactive gospel map

Technologies Used

Key Features

RAG Platform for HR Teams

Technologies Used

Key Features

Code Chatbot Assistant

Technologies Used

Key Features

Mercado Libre API Integration

Technologies Used

Key Features

Education & Learning

Formal Education

Systems Engineering (expected 2026)

Bachelor's Degree in Theology

Theological Studies

Bilingual Assistant (Spanish-English)

Courses & Certifications

LangChain for LLM App Development

Pydantic for LLM Workflows

Vector Databases: Embeddings to Applications

Building and Evaluating Advanced RAG

LangChain Chat with Your Data

NLP, Generative AI & Knowledge Graphs

German A1 Level

Cambridge PET

Advanced Portuguese

Volunteering

Certifications

Let's Connect

Get in Touch

Email Address

LinkedIn

GitHub

Location

Send a Message