Dario Auda

Full-stack business management SaaS with multi-user workspaces, data visualization, multi-gateway payments, AI-powered image processing, and WhatsApp report integration.

• Built multi-tenant workspaces with strict isolation and role-based access control
• Developed interactive data visualization with calendars, canvas tools, and charting capabilities
• Integrated Stripe, PayPal, and Mercado Pago for multi-gateway payment processing
• Integrated AI via Replicate API for image processing and Tesseract.js for OCR text recognition
• Built Excel, CSV, and Google Sheets import/export with synchronization pipelines
• Used Redis for real-time capabilities, caching, and background job queues

Multi-language marketing website with Stripe payments, Google Maps integration, video streaming, and a CMS-like content system. Built with Next.js and internationalized with next-intl.

• Built multi-language routing with next-intl using [locale] dynamic segments
• Integrated Stripe for checkout flows and payment processing
• Implemented video streaming with Dash.js for adaptive media playback
• Developed carousels, animated sections, and file uploads backed by Vercel Blob
• Optimized SEO via dynamic sitemap, robots.txt, and hreflang alternates
• Orchestrated animations with Framer Motion and GSAP for polished interactions

Multi-tenant SaaS platform that automates appointment scheduling for SMBs through WhatsApp Business, providing real-time availability, automated reminders, and subscription-based billing.

• Designed and built a multi-tenant SaaS architecture with strict tenant isolation
• Implemented WhatsApp-based booking flows using Twilio WhatsApp Business API
• Developed real-time availability and conflict prevention with tenant-specific calendars
• Built automated messaging flows for confirmations, reminders, rescheduling, and no-show reduction
• Integrated Stripe for subscription billing, plan management, and automatic renewals
• Developed backend using .NET (C#) with Clean Architecture and CQRS/Mediator pattern

Customer and product risk assessment platform that calculates safety scores for brands and products. Features a dynamic scoring engine, content management via Payload CMS, and authentication with Clerk.

• Designed risk scoring engine with numeric scores (0–10) and letter ratings (A–F), auto-calculated from aggregated lab test data
• Built brand and product database with categorized browsing, search, and detailed product pages
• Integrated Payload CMS v3 with MongoDB for block-based page layouts and live preview
• Implemented Clerk authentication with public-read access and admin-only content management
• Developed test data tracking with lab sources and automatic metric recalculation on updates
• Secured contact forms with reCAPTCHA and schema validation via React Hook Form and Zod

AI-driven platform for peptide scoring and structure prediction integrating bioinformatics tools and machine learning models.

• Developed and maintained core backend using PayloadCMS and TypeScript
• Integrated Clerk for secure authentication and role-based access control
• Implemented dynamic API routes and webhooks for data synchronization with external ML services
• Created custom dashboard with React and Tailwind for peptide analysis visualization
• Optimized deployment with Docker and Nginx ensuring continuous delivery and SSL setup

Innovative 3D printing e-commerce project focused on delivering creative and customizable home products, toys, and keychains.

• Designed and developed full-stack e-commerce architecture using Next.js, React, Node.js and Prisma ORM
• Integrated dynamic product filtering, stock management, and custom pricing logic using Zod, React Hook Form, and Framer Motion
• Built 3D printing cost calculator with adjustable material inputs and currency conversion via ExchangeRate API
• Managed user authentication and protected routes using NextAuth
• Developed backend APIs for product CRUD operations, image uploads, variant handling, and checkout logic using MercadoPago

Property Management platform for administrators with bulk CSV processing and geolocation integration.

• Development of platform allowing bulk uploading of property records from CSV files
• Implementation of search and update functionality for key property information
• Integration of Google Maps and Geolocations API for enhanced property management
• PDF document management system for property certificates

E-commerce platform creation applying MVC design pattern with comprehensive payment and shipping integration.

• Applied MVC (Model-View-Controller) design pattern for efficient data handling
• Implemented 3rd party APIs including Authorize.net for payment processing
• Integrated ShipStation for shipping management
• Added GooglePay and ApplePay payment methods for enhanced user experience

Website performance optimization and analytics implementation for rental platform.

• Enhanced website performance through resource optimization techniques
• Implemented efficient browser cookies and asynchronous data loading
• Managed Google Analytics and Klaviyo campaigns implementation
• Fixed critical bugs that hindered application flow

Automation system for EICMA entity services with national recognition.

• Automated services improving manual processes by 87%
• Achieved 1st mention at national level due to high demand and ease of use
• Integrated with VERSAT for client database handling and management
• Implemented AI (ChatGPT) for task automation and customer communication