<ai-ml-engineer/>
Ari Vítor Lazzarotto — Helping to make sci-fi real.
// ABOUT
AI/ML Engineer with hands-on experience building production-grade LLM applications and CI/CD-integrated ML pipelines. Skilled in prompt engineering, security hardening for AI agents, and MLOps.
M.Sc. in Computer Science at UFPel. Currently building local-first AI agents and researching multimodal vision-language models.
// SKILLS
Languages
AI / ML
MLOps & Cloud
Backend & Security
// PROJECTS
OpenJarvis
Local-first personal AI agent framework. On-device agents with security guardrails, capability-based RBAC, and PII redaction. Stanford-affiliated open source.
Multimodal Video Annotation
M.Sc. thesis: detects 7 programming behaviors from screen recordings using Vision-Language Models (Qwen2.5-VL). Evaluation with Cohen's kappa and F1.
Langfuse (contributor)
Open source LLM engineering platform — observability, evals, prompt management. Contributed to the ecosystem.
CUDA Pathfinder
Pathfinder benchmark in CUDA via Gpotion DSL (Elixir syntax). GPU-accelerated parallel computation.
Hypothetical Computer Simulator
16-bit CPU simulator with 3-pass assembler, macro processor, multi-file linker, and loader. Rust rewrite of SSCH. 68 tests.
WMS AI Agent
LangGraph warehouse agent with tool-calling, 15-question evaluation framework, prompt injection defense, and audit trail. 24 tests.
Rails Job Board
Full-stack job board with Devise auth, search/filter, admin CRUD, Pagy pagination, Tailwind CSS. 28 RSpec tests, GitHub Actions CI, deployed on Render.
Rails Marketplace
E-commerce marketplace with shopping cart, order system, category filtering, admin dashboard. Devise auth, Pagy pagination, Tailwind CSS, RSpec tests, deployed on Render.
Rails Project Manager
Team collaboration tool with projects, tasks, real-time comments via Hotwire/Turbo. Multi-role permissions, Devise auth, Tailwind CSS, RSpec tests, deployed on Render.
Rails API
RESTful API-only Rails app with JWT auth, rate limiting (Rack::Attack), Swagger documentation. Task management endpoints with filtering. RSpec tests, deployed on Render.
Rails AI Writer
AI writing assistant powered by OpenAI GPT-4o-mini. Conversations with history, mock mode for demo, Devise auth, Tailwind CSS, deployed on Render.
// TESTIMONIALS
"Ari's work on our ML pipeline was exceptional. His attention to security hardening for AI agents saved us weeks of potential vulnerabilities."
"Deep understanding of both MLOps and production systems. Delivered a robust CI/CD-integrated ML pipeline on time and with excellent documentation."
// BLOG
Building Local-First AI Agents with Security Guardrails
Exploring capability-based RBAC and PII redaction in on-device agent frameworks.
AI Agents 2025Multimodal Vision-Language Models for Code Analysis
Detecting programming behaviors from screen recordings using Qwen2.5-VL.
M.Sc. Research 2025GPU-Accelerated Pathfinder with CUDA and Elixir
Implementing parallel pathfinding via Gpotion DSL for high-performance computation.
HPC// EDUCATION
M.Sc. in Computer Science
Federal University of Pelotas (UFPel)
2024 — Present
B.Sc. in Computer Science
Federal University of Pelotas (UFPel)
2017 — 2023
Technical Diploma in Electronics
Instituto Federal Sul-Rio-Grandense
2014 — 2016
// CERTIFICATIONS
LangGraph Foundation: Introduction to LangGraph - Python
LangChain Academy
Jun 2026 — ID: 7inmi475ao