Camilo Cano (Slash)'s Work | ContraWork by Camilo Cano (Slash)Camilo Cano (Slash)
Senior Full-Stack Architect & SaaS Founder
🚀 RestoBarApp — Cloud POS & Multi-Tenant Hospitality Management SaaS
Architected and deployed a full production B2B SaaS platform for restaurants, bars, and hospitality businesses with active daily operations and paying subscribers.
Key Engineering & Product Highlights:
• Integrated AI Operations Assistant: In-app conversational assistant powered by Google Gemini API, allowing restaurant managers to query sales velocity, stock anomalies, and daily operational metrics in real-time.
• Granular Inventory Engine: Real-time ingredient tracking down to the gram/milliliter linked directly to recipe consumption upon checkout.
• Real-Time Kitchen Sync: Bi-directional WebSocket events keeping order queues synchronized across multiple kitchen stations with zero page reloads.
• Multi-Branch & Multi-Tenant: Robust tenant data isolation, custom role-based permissions (Cashier, Waiter, Kitchen, Admin), and multi-location management.
• Automated Invoicing & Thermal Printing: Seamless thermal POS receipt generation and automated billing lifecycle management.
🛠Tech Stack:
Node.js • Express • MongoDB • Real-time WebSockets • Google Gemini API • TailwindCSS • Google Cloud Platform (GCP)
🔗 Live Platform: https://app.restobarapp.com InverSync PRO — Full-Stack Fintech SaaS & Distributed Investment Engine
Architected and built an end-to-end private capital investment, real estate portfolio, and partner asset management platform with edge data distribution.
Key Architecture & Engineering Highlights:
• Modern Frontend: React 18 SPA built with Vite 5, Tailwind CSS, Context API for multi-role session management, and custom fintech UI components.
• Scalable Backend: Node.js (v20 LTS) RESTful API with Express.js, JWT/Bcrypt authentication, and granular Role-Based Access Control (SuperAdmin, Admin, Partner).
• Edge Database Architecture: Turso (libSQL) distributed database utilizing Embedded Replicas for microsecond local read latency and bidirectional cloud sync.
• Financial Logic: Custom Waterfall profit distribution algorithms, partner equity parity rebalancing, and debt amortization sub-ledger with interest capitalization.
• Multi-Currency & Compliance: Native support for 15+ currencies (USD, COP, EUR), bank receipt processing, and immutable audit logs.
• Deployment: Automated CI/CD pipeline on Render connected to GitHub.
Live Staging URL: https://inversync.onrender.com
Stack: React • Node.js • Express • Turso / libSQL • Tailwind CSS • Vite • REST APIs • Edge SQL RxApp — Enterprise ERP, AI Operations & Client Lifecycle Management Platform
Architected and engineered a comprehensive, custom ERP/CRM and business operations suite designed to centralize client management, sales pipelines, recurring service catalogs, project delivery phases, and AI-driven proposal generation.
Core Architecture & Technical Highlights:
• Modern Frontend: React 19 SPA built with TypeScript, React Router v7, TanStack Query v5 for server-state caching/optimistic UI, and Tailwind CSS v4 design system tokens.
• Modular Backend API: Node.js and Express.js layered architecture with Mongoose (MongoDB), Helmet security headers, JWT stateless authentication, and express-validator sanitization.
• Google Gemini AI Integration: Powered by @google/generative-ai with an intelligent dynamic model fallback chain (Gemini Flash series), dynamic runtime API key hot-swapping, and Xtreme-AI role-filtered knowledge base chat.
• 3-Stage AI Proposal & Scoping Engine: Interactive requirements extraction, technical dimensioning, commercial quotes with multi-installment terms, and automated technical runbook generation.
• Granular RBAC: Strict 5-tier Role-Based Access Control (SuperAdmin, Executive, Dev Director, Commercial, Financial).
• Sales & Billing Pipeline: Multi-currency invoice tracking, payment receipt processing (Multer), and phase-based project scheduling.
Stack: React 19 • TypeScript • Node.js • Express • MongoDB • Google Gemini API • TanStack Query • Tailwind CSS v4 MedSched Pro — Full-Stack HealthTech SaaS & Clinical Practice Management Platform
Architected and engineered a modular, high-performance practice management and appointment scheduling SaaS designed for medical clinics, dental practices, and veterinary centers.
Core Architecture & Technical Highlights:
• Modern Frontend: React 18 SPA built with Vite 6, Tailwind CSS v3 clinical design system, React Portals for isolated print/PDF DOM roots, and Lucide React.
• High-Performance Backend: Node.js 22 LTS leveraging the native Node HTTP server architecture for zero-dependency overhead, dynamic route dispatching, and streaming JSON serialization.
• Embedded Zero-Latency Database: Powered by SQLite 3 via native node:sqlite (DatabaseSync) with 12 relational models, ACID transactions, and automated integrity enforcement.
• Patient Booking Funnel: Intuitive 4-stage patient reservation portal with dynamic doctor slot generation, real-time availability, and double-booking prevention.
• Clinical EHR & Bioethics: Electronic health records timeline, prescription management, radiographic image viewer with optical zoom/rotation, and HTML5 Canvas e-signature with legal audit hashing.
• Financial & Cash Register Engine: Double-entry clinical accounting tracking consultation collections, multi-account settlement, expense categorization, and cash drawers.
• Global i18n Engine: Enterprise-grade internationalization supporting 4 languages (English, Spanish, Portuguese, French) with 1,924 localized string keys per locale.
Stack: React 18 • Node.js 22 • Vite 6 • SQLite 3 (node:sqlite) • Tailwind CSS • HealthTech • REST APIs • i18n