AI/ML Engineer

Building production AI systems at MercadoLibre — Latin America's largest tech company — serving 200M+ users. Shipping agentic pipelines, multimodal LLMs, and RAG architectures at scale.

Joaquin Machulsky

Featured Projects

Selected work spanning AI research, production systems, and infrastructure

AI Agents Alignment: Scalable AI Safety via Debate - 1AI Agents Alignment: Scalable AI Safety via Debate - 2AI Agents Alignment: Scalable AI Safety via Debate - 3

Master's thesis research at FCEyN — University of Buenos Aires. Implemented a full debate protocol simulation using PyTorch — including computer vision models, turn-based strategies, and agent asymmetry. Empirically demonstrated that debate improves accuracy of limited judges in AI decision-making.

PythonPyTorchComputer VisionGame TheoryAI Safety
Agentic AI Content Generator - 1Agentic AI Content Generator - 2Agentic AI Content Generator - 3

AI-powered tool using LangGraph state machines and Google Gemini to generate, refine, and optimize professional content through iterative feedback loops. Features session management, RESTful API, and full type safety with Pydantic.

LangGraphGeminiFastAPIAgentic AIPydantic

Semantic Search RAG System

Production-grade agentic RAG system using Gemini LLM and Google embeddings for natural language queries over a 544-product catalog. Vector storage with pgvector, deployed on AWS with Flask APIs.

GeminiRAGpgvectorFlaskAWSDocker

Melanoma Detection Model

PyTorch-based computer vision system for melanoma detection achieving 80% recall. Includes CNN architectures, OpenCV preprocessing pipelines, and comprehensive model evaluation.

PyTorchComputer VisionOpenCVMedical Imaging

Personal Cloud Infrastructure

Self-designed cloud infrastructure for deploying ML applications, research demos, and web services. Docker containerization with reverse proxy routing, SSL certificates, domain management, and uptime monitoring.

DockerCloudflareLinuxNginxMonitoring

Want to see more of my work?

View all on GitHub

Experience & Education

From academic research to production AI at global scale

Professional Experience

AI Engineer (Sr. Analyst)

MERCADO LIBRE

January 2026 - Present
Remote

Leading AI initiatives including LLM-powered compliance automation and a strategic product collaboration with Google, serving 200M+ users across Latin America.

LangChain/LangGraphGemini/GPTVision APIRAGAgentic AIAWSGCPDockerKubernetes

AI Engineer & Team Lead

NETV S.A.

August 2024 - December 2025
Remote

Lead of AI & Data team. Built production semantic search for 544+ products. Optimized SQL pipelines 97% faster (40 min to under 60s).

PyTorchGeminiRAGpgvectorComputer VisionFlaskAWSDocker

Data Engineer & ML Consultant

LAS MERCEDES

November 2022 - Present
Remote

Automated reconciliation for 500+ monthly POS transactions, reducing manual processing by 85%. Applied ML forecasting to reduce stockouts by 25%.

PythonPostgreSQLFlaskScikit-learnAWSREST APIs

Education & Certifications

Master's in Data Science (Artificial Intelligence)

University of Buenos Aires

2023 - 2025
Buenos Aires, Argentina

Bachelor's in Data Science (Mathematics + Computing + Statistics)

University of Buenos Aires

2020 - 2023
Buenos Aires, Argentina

English Proficiency (FCE B2)

Cambridge English

Certified
International

About Me

I'm an AI/ML Engineer from Buenos Aires with 4+ years turning research into production systems. Currently leading AI initiatives at MercadoLibre (MELI), I specialize in LLM-powered automation, agentic architectures, and multimodal AI pipelines deployed at global scale.

I hold a Master's in Data Science from the University of Buenos Aires, where I also research AI Safety at FAIR-IALAB — investigating how debate mechanisms can make AI systems more trustworthy. Outside work, I run my own cloud infrastructure for deploying ML applications and experiments.

I enjoy collaborating on challenging AI problems — from research to production.

200M+
Users served at scale
10+
AI systems in production
M.Sc.
AI & Data Science (UBA)
Team Lead
AI Engineering

Technical Skills

Core technologies I use to build and deploy AI systems at scale

AI/ML & LLMs

LLMs (Gemini, GPT)LangChain/LangGraphRAG SystemsAgentic AIMCP IntegrationsPrompt EngineeringPyTorchScikit-learnComputer VisionNLP

Cloud & Infrastructure

AWS (EC2, S3, RDS)GCP (Vertex AI, Cloud Storage)DockerKubernetesCI/CD (GitHub Actions)Grafana

Data & Backend

PythonSQLC++FlaskPostgreSQL (pgvector)REST APIsPandasNumPyA/B Testing

Teamwork & Communication

Team managementCross-functional coordinationSprint planningArchitecture reviewsEnglish (Cambridge FCE B2)Spanish (Native)

Let's Connect

I enjoy connecting with people working on interesting problems.

Interested in working together?

My expertise spans LLM systems, RAG architectures, agentic AI, and end-to-end ML engineering at scale.

Send Email

© 2026 Joaquin Salvador Machulsky