Enterprise
architecture.
Founder speed.
We build apps from zero to the App Store and design AI systems for production — not demos. Architecture-first, personally built.
Start a ProjectWhat we deliver.
App Delivery
You have a product idea or a validated concept. We architect the system, build the frontend and backend, and ship it to the App Store. End to end — the same discipline we used to design systems for Fortune 500 clients, applied at founder speed.
- React Native (Expo) — cross-platform with native feel
- Full-Stack — frontend, backend, APIs, deployment
- Architecture-first — TOGAF-trained system design
- App Store Launch — from TestFlight to production
AI Systems
We design and build production AI/LLM systems — the kind that need to run reliably, not just demo well. We help teams figure out where AI creates real value, which models to use, how to architect the pipeline, and then we build it. Currently completing Stanford's AI Professional Program.
- Multi-Model Pipelines — Claude, GPT, Gemini
- Prompt Engineering — structured output, multi-pass architectures
- Cost Optimization — managing 150x model price spreads
- AI Strategy — from validation to production deployment
Technologies
Shipped.
Weblock — Enterprise SaaS Platform
CTOScaled the engineering team from 4 to 30+ developers across multiple countries. Architected and shipped a multi-tenant SaaS platform with 5 microservices and 13 product modules — a comprehensive suite spanning tokenized asset marketplaces, blockchain-powered credential verification, custom digital currencies and loyalty programs, QR/biometric access management, and supply chain tracking. Multi-gateway payments (PIX, Stripe, crypto, credit card), identity and authentication, and KYC/AML compliance across 19 document types.
NestJS · PostgreSQL · Next.js · Stripe · BlockchainZuca
Technology Advisor & DeveloperDesigned full-stack architecture for a fintech payment app that lets users pay at partner restaurants, cafés, and bars while earning instant blockchain-verified cashback — no points, no delays, 1 Zuca = R$1 always. Built the React Native app end to end with Apple Pay, Google Pay, geo-localization, and a multi-level referral system. 5-star ratings on both App Store and Google Play, serving thousands of monthly active users across dozens of partner businesses.
React Native · Apple Pay · Google Pay · OneSignal · BlockchainSautee — AI Cooking Assistant
Founder & Sole DeveloperBuilt everything: product strategy, design system, React Native frontend, and a multi-vendor LLM backend. The app transforms any recipe URL into a parallel cooking plan using a DAG-based scheduling engine. The AI pipeline benchmarks 21 model/strategy combinations across three vendors with automated quality scoring — managing a 150x model cost spread down to the best quality-per-dollar.
React Native · Supabase · Claude · GPT · GeminiReal Estate Investment Platform
Technical LeadLed architecture and development of a property investment platform for the Australian market. React Native mobile app with investment workflows, regulatory compliance, and backend API integration.
React Native · Node.js · PostgreSQLLive Video Trivia Game
DeveloperReal-time video streaming trivia with live audience participation. NBA finals advertising partnership and SportClips sponsorship. Built the React Native client with WebSocket-driven real-time state synchronization.
React Native · WebSocket · Real-Time VideoBehind the studio.
Rafael Mendes H. Perez
Rio de Janeiro, Brazil
Ten years at Accenture designing enterprise systems for Fortune 500 companies. Then CTO at a SaaS startup — scaled the team from 4 to 30+ developers and shipped a multi-service platform with payments, identity, and real-time processing. Over 20 apps shipped across the career, several used by hundreds of thousands of users.
We handle builds end to end — architecture, frontend, backend, deployment — because we genuinely enjoy the craft of building. The same mind that designs the system also writes the code. That's the point.
“The best products emerge from minds that hold the full picture.”
Stanford
AI Professional Program (2025–2026)
Kellogg
Product Strategy — Northwestern
TOGAF
Certified Enterprise Architect
Career
CTO
Scaled engineering from 4 to 30+ developers across multiple countries. Architected a multi-tenant SaaS platform — 5 microservices, 13 product modules, hundreds of thousands of transactions. Previously VP of Engineering before stepping into the CTO role.
Independent & Co-Founder
Took the architecture discipline from Accenture and applied it at founder speed. Freelance consulting ($200K+ earned, 100% Job Success, Expert-Vetted top 1% on Upwork). Co-founded Audlist, an audio social network. Led development of a property investment platform for the Australian market.
Solution Architect — Accenture
Ten years designing large-scale enterprise systems for Fortune 500 companies — healthcare, telecom, retail, oil & gas. Coordinated teams across five countries (Brazil, Poland, Philippines, UK, Caribbean). Rose from senior engineer to enterprise architect to associate manager. This is where the architecture discipline comes from.
Have a project
in mind?
An app from zero to launch, an AI system that needs to work in production, or a technical challenge that needs an architect who also ships the code — let's talk.
Get in Touch