Hello, I'm

Luis Otavio

Full Stack DeveloperAI EngineerBackend DeveloperFrontend DeveloperOpen Source ContributorLLM SpecialistFull Stack Developer

I craft full-stack web applications and AI-driven products. From enterprise platforms to intelligent chatbots, I turn complex ideas into elegant solutions.

About Me

A passionate developer who loves building things that live on the internet

Germany - Open to Remote & Relocation

I'm a Full Stack Developer and AI Engineer based in Germany, originally from Brazil. With a degree in Computer Engineering and ongoing studies in System Development, I specialize in building scalable web applications and integrating AI to solve real-world problems.

I build everything from responsive frontends to robust backend systems, with a focus on delivering polished user experiences. My recent work spans enterprise platforms, custom CRMs, and AI-powered applications, from LLM integrations to autonomous agents.

I'm an active open source contributor, with projects like the WhatsApp AI Assistant (125+ stars) and contributions to LangChain.js. I hold Brazilian & Italian citizenship and speak Portuguese, English (C2), Spanish, and am learning German.

Frontend

ReactReact NativeNext.jsTypeScriptTailwind CSSshadcn/ui

Backend

Node.jsExpressFastifyPythonRESTful APIsBetter AuthNextAuth

Databases

PostgreSQLMongoDBSupabaseFirebasePrismaDrizzle

AI & ML

LLMsLangChainPydantic AICrewAISmolagentsMem0RAGAI AgentsPrompt Engineering

DevOps

GitDockerAWSCI/CDLinux

Education

BS in Computer Engineering

Sorocaba University of Engineering

2019 - 2023

BS in System Development

Pontifical Catholic University of Paraná

2024 - Present

Experience

My professional journey and the companies I've worked with

Akdo.ai logo

Full-Stack Developer

Akdo.ai

July 2025 - January 2026Germany

Architected AI-powered enterprise training platform from scratch with automated course creation and LLM-driven content generation.

Next.jsTypeScriptBetter AuthAI/LLMs
Underdogs logo

Full-stack Developer & Automation Lead

Underdogs

November 2024 - July 2025Italy

Led IT infrastructure and built full-stack web platform, automating 20+ business workflows saving 40+ hours/week.

ReactNext.jsTailwind CSSSupabaseChatbotsAI/LLMsZapierMaken8n
Awana Digital logo

AI Engineer

Awana Digital

April 2024 - November 2024USA

Engineered autonomous AI agents for environmental conservation, enabling conversational interfaces for environmental data access.

PythonLangChainSmolagentsMem0AI/LLMs

Full-Stack Developer

Freelancer

December 2023 - March 2024Brazil, Israel

Built AI-powered chatbots and automation systems for various clients, including WhatsApp integrations and advisory bots.

TypeScriptNode.jsWhatsApp APIAI/LLMsAutomation
Huawei logo

Intern

Huawei

January 2023 - November 2023Sorocaba, São Paulo, Brazil

Contributed to telecommunications infrastructure and developed automation tools for Claro's network operations.

PythonReactVBATelecommunicationsAPIs

Founder

LP Tech

June 2020 - January 2023Brazil

Founded and managed LP Informática, an online store specializing in used computers with technical support services.

E-commerceDigital MarketingHardware SupportCustomer Relations

Projects

A selection of my recent work and personal projects

View Details

WhatsApp AI Assistant

125

Open-source WhatsApp chatbot leveraging LLMs for context-aware conversations with 125+ stars.

TypeScriptNode.jsLangChainDocker+2
View Details

AI Personal Assistant

Production-ready multi-client AI agent with persistent memory, RAG-powered knowledge base, multi-language speech processing, and comprehensive finance management.

PythonFastAPITypeScriptNext.js+9
View Details

AI Agent Boilerplate

Production-ready multi-client boilerplate for building conversational AI agents with memory, RAG knowledge base, and multi-language speech processing.

PythonFastAPITypeScriptFastify+8
View Details

LangChain.js Google Routes

Open source contribution: Added Google Routes tool to the LangChain.js framework.

TypeScriptLangChain.jsGoogle Maps APIOpen Source
View Details

Earth Defenders Assistant

Impact13

Audio-first AI platform for environmental defenders with offline capability and flexible plugin architecture.

PythonLangChainSmolagentsMem0+1
View Details

Terra Krya WhatsApp Integration

Impact

Amazon Challenge winner: WhatsApp chatbot integrating environmental defense tools for Amazon communities.

PythonTurn.ioWhatsApp APIAI/LLMs+2
View Details

Mulheres Rurais de Sergipe

Impact

Platform empowering rural women artisans with voice-enabled product registration using STT/TTS chatbot.

Next.jsTypeScriptNode.jsPrisma+3