Emais Network
Business networking SaaS platform: groups, events, tickets, rankings and finance with real payments via Asaas. Live in production for an in-person business network, evolving continuously.
Curitiba, Brazil —
AI systems that make it to production.
I'm João Moreti — computer engineer and AI developer. I build platforms, data pipelines and LLM systems end to end: from architecture to deploy, with real users and real payments.
See projects ↓01 Selected projects
Real systems, in production or active use.
Yogha Sistema
Management platform for hospitality: properties, housing units, owners, guests, service tickets and access control. Node/TypeScript API with Prisma and PostgreSQL, React SPA, AWS Cognito auth and automated deploys to EC2.
Real-Estate Auction Intelligence
End-to-end real-estate data pipeline: multi-state auction scraping, faithful extraction of property records and notices from PDFs with multimodal models (LLM OCR) and a dashboard for opportunity analysis.
Minuswave
Real-time AI conversation API: audio streaming orchestrating Whisper, LLMs and neural TTS with latency and throughput management. Hybrid inference — local GPU or cloud — deployed on AWS.
WhatsApp Service Bot
Customer-service bot for WhatsApp that answers in a human, natural tone, grounded by RAG over the business knowledge base. Official WhatsApp Business API, hexagonal architecture and Supabase.
AI Social Media Pipeline
Ecosystem that generates, edits and publishes video content autonomously: LLM scripts, voice synthesis, video assembly and scheduled publishing, with monitoring and Telegram alerts.
OctusForge Sales Landing
High-conversion e-commerce landing page designed and built as a freelance project for OctusForge: product storytelling, responsive layout and performance-focused implementation.
Financial Sentiment Analysis
ETL system that collects news from multiple sources and classifies sentiment on stocks and ETFs with transformer models, producing structured insights for investment decisions.
02 Path
Developer and consultant, from first internship to founder.
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2021
Python Development Intern · Grupo Seccional
ETL pipelines and predictive models for precision agriculture; REST APIs, data analysis and test-driven practices, for 1 year and 3 months.
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2022
Backend Developer (C#) · Microdev
Features on an ASP.NET MVC system; query and ETL optimization improving efficiency by 40%.
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2023
Independent AI & full-stack developer
Freelance projects: RAG chatbots with vector databases, LLM integrations in production, dashboards and e-commerce landing pages.
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2024
Developer & AI consultant · Yogha
Ongoing consulting for a hospitality company: internal management platform and AI initiatives, from architecture to cloud deployment.
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2025
Founder · Dark Marlin
Software studio behind Emais Network — a SaaS live in production with real payments — and other client platforms.
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2026
B.Sc. Computer Engineering · PUCPR
Final year in Curitiba: artificial intelligence, machine learning, data science and software engineering.
03 About
Computer Engineering (PUCPR) and one obsession: taking AI out of the notebook and into production.
I work as an AI developer and consultant — from RAG chatbots and vector databases to ETL pipelines for large data volumes, ML/DL models (NLP, forecasting, computer vision) and LLM integrations with fallback, monitoring and retraining. I also build the product around the model: APIs, frontends and cloud infrastructure.
Founder of Dark Marlin, the software studio under which I deliver complete platforms for clients.
- Based in
- Curitiba — PR, Brazil
- Education
- Computer Engineering, PUCPR
- Focus
- Applied AI, LLMs, data
- Languages
- Portuguese · English (C1)