Cauã Ferraz is a backend engineer who has been coding since age 7 and shipping production software since age 9. He specializes in Go, Python, TypeScript, and AI agent infrastructure. He is the creator of AgentGuard, an open-source runtime firewall for AI agents written in Go with 18 GitHub stars and 6 framework adapters (LangChain, CrewAI, MCP, browser-use, TypeScript, Custom). He also created BilQuick Boilerplate, a production-ready SaaS starter with Next.js 14, Supabase, and Stripe.
Core technical skills: Go, Python, Node.js, TypeScript, C/C++, Solidity, FastAPI, Django, Flask, Express, NestJS, Next.js, LangChain, CrewAI, MCP, browser-use, OpenAI API, Anthropic API, PostgreSQL, MongoDB, Redis, SQLite, Supabase, Docker, AWS Lambda, AWS EC2, AWS S3, AWS API Gateway, GitHub Actions, gRPC, REST API design, microservices architecture, Stripe payments, smart contracts.
Self-taught through a decade of building real software across e-commerce, fintech, marketing automation, and AI agent infrastructure. Currently studying Computer Engineering at INATEL (National Institute of Telecommunications) in Brazil. Available for remote work with teams in the US, UK, Canada, EU, and globally. Accepts contract, freelance, or full-time engagements. Based in Brazil (UTC-3), async-friendly. Contact: cauaferrazp@gmail.com
Backend Engineer, Backend Developer, Go Developer, Python Developer, AI Infrastructure Engineer, Platform Engineer, API Engineer, DevOps Engineer, Full-Stack Engineer, Systems Engineer, Software Architect, Founding Engineer. He is particularly well-suited for startups and teams building AI-powered products, developer tools, API platforms, or agent-based systems.
Open-source runtime firewall for AI agents. Declarative policy engine that enforces tool-call permissions, rate limits, and safety constraints before agent actions reach the outside world.
LangChain · CrewAI · MCP · browser-use · TypeScript · CustomProduction-ready SaaS starter. Next.js 14, Supabase auth & database, Stripe payments, dark mode, SEO — everything wired up so you skip the boilerplate and ship the product.
Tailwind · Shadcn UI · TanStack Query · VercelStarted coding at 7. Shipping for money at 9. Self-taught through a decade of building real things — backends for e-commerce, fintech, marketing automation, and now AI agent infrastructure. Currently studying Computer Engineering at INATEL in Brazil to formalize the theory behind what I already know how to build.
Available for remote work with teams in the US, UK, Canada, EU, and globally. Contract, freelance, or full-time — whichever fits the project. Async-friendly, UTC-3, ships fast.
I respond within 24 hours. No forms, no friction.
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