João Nobre

Founder · Fortaleza, Brazil

• Solo-building an AI financial assistant that lets users connect bank accounts and talk to their money in natural language.
• Built the full stack alone: LLM pipeline, backend, frontend. Pivoted from Brazil to the US market after validating product-market fit.
• Own everything: product, infrastructure, distribution, and growth. No co-founder, no team.

Technical Lead (first hire) · Brazil

• Sole technical hire at Brazil's largest influencer marketing agency. Owned all infrastructure from day one.
• Built live streaming infrastructure (Nginx-RTMP, dedicated ingest servers) delivering sub-2s latency for large-scale outdoor productions with tens of thousands of concurrent viewers.
• Ran production Linux environments: load balancing, CDN integration, multi-platform video distribution, and failover for high-stakes live events.
• Shipped AI-powered video processing and search tools that became core infrastructure across the company.
• In the room for contract negotiations with major names in Brazilian entertainment and sports, including Neymar Jr.

Founding Engineer · Early equity, successful exit · São Paulo, Brazil

• First engineer at a payments infrastructure company that built acquiring and processing rails for merchants. Exited equity stake post-acquisition.
• Built the transaction engine from scratch in Node.js and Go: authorization, capture, refund, chargeback, and settlement flows across multiple acquirers and banking APIs.
• Designed the smart routing layer: dynamically picked the best acquirer per transaction based on approval history, cost, and latency. Lifted overall approval rates.
• Built the fraud and risk stack: real-time scoring, velocity checks, and rule-based automation running on every transaction before authorization.
• Owned the entire infrastructure on AWS (ECS, RDS, ElastiCache) with Kubernetes, zero-downtime deployments, and PCI-DSS compliant tokenization.

Founding Engineer · Brazil

• Joined at 14 as a core developer on Brazil's equivalent of Honey, a price tracking browser extension.
• Grew the product from early stage to acquisition by Mosaico/Buscape in 2021 (~$1.4M).
• Drove business decisions including onboarding Felipe Neto (one of Brazil's biggest YouTubers) as a distribution partner.

Terminal for Coding Agents

• Built a desktop terminal designed for running AI coding agents in parallel.
• Each task spins up its own git worktree and terminal session, so multiple agents work simultaneously without stepping on each other.
• Live terminal streaming, built-in diff viewer, and real-time agent monitoring from a single interface.
• Works with any CLI-based agent: Claude Code, Codex, Gemini CLI, Copilot.

Automated Clip Generator for Short-Form Video

Node.js, AWS Lambda, FFmpeg, Whisper, OpenAI, TikTok/Reels/Shorts APIs

• End-to-end pipeline that watches live streams on Twitch, Kick, and YouTube and auto-identifies highlights using layered AI.
• Layer 1: real-time transcription via Whisper. Layer 2: context scoring combining transcript, chat velocity, sentiment, and humor detection.
• Auto-cuts clips, adds animated captions, and distributes to TikTok, Reels, and Shorts. Zero manual intervention.
• Handles multiple concurrent streams via SQS + Lambda. Under 3 minutes from stream moment to published post.

Video Search Infrastructure

TypeScript, Cloudflare Workers, Vectorize, Whisper, OpenCV, DeepFace

• Distributed transcription pipeline with Whisper + semantic chunking for full-text search across a large video library.
• Computer vision layer for face recognition, cataloguing who appears where, when, and in what context across thousands of hours.
• Vector indexing via Cloudflare Vectorize for semantic search combining visual and transcript signals.
• RAG layer for contextual Q&A with streaming responses and source citations.