Vladut-Marian B.

I build and maintain production SaaS platforms in .NET and React: booking engines, payment and billing systems, admin dashboards and AI-powered features that real businesses rely on every day. Top Rated Plus, 100% Job Success, 12,000+ hours delivered. Clients usually hire me when the work needs to be both fast and correct: payments that must never double-charge, bookings that must never conflict, and reports where every number has to match. What I've built recently: - Airline Internet Booking Engines: flight search, fares, extras and checkout, with Braintree and Paya payment integrations built from scratch. Over a year of development and maintenance, 777 hours, 5.0 stars. - Prostay, a hotel management SaaS: booking engine with availability and pricing, channel manager sync, deposits, and an accounting module with double-entry bookkeeping, P&L and revenue reporting - TableView, a restaurant POS platform: order flows, menus, shifts and end-of-day reports, with a desktop app that works offline - Mobile apps live on iOS and Android, including an investment platform's customer app and a warehouse inventory app with offline sync What I'm best at: - .NET backends: ASP.NET Core, Entity Framework, clean architecture, background jobs, REST APIs - Payments and billing: Stripe, Braintree, Square, QuickBooks, Paya, including webhooks, refunds, idempotency and reconciliation - Booking, scheduling and SaaS platforms with role-based dashboards and multi-tenant data - AI integrations with OpenAI, Azure OpenAI and Claude: assistants that work on top of your real data, document processing and report generation - Frontends in React, Angular and Blazor, responsive and accessible - Azure: App Service, Azure SQL, Cosmos DB, Static Web Apps and Azure DevOps pipelines How I work: I use AI tools such as Claude Code every day to move faster, but every line that ships is reviewed and owned by me. You get clear, regular updates, small reviewed pull requests, and code another developer can pick up easily. If you have an existing product that needs a reliable senior developer, or a new platform you want built properly from the start, send me a message and tell me what you're working on. SKILLS LIST: Frontend: React, Angular, Blazor, TypeScript, HTML, CSS Backend: C#, .NET, ASP.NET Core, REST APIs, Entity Framework Databases: SQL Server, PostgreSQL, Azure Cosmos DB Payments: Stripe, Braintree, Square, QuickBooks Cloud and DevOps: Azure, Azure DevOps, GitHub, GitLab AI: OpenAI API, Azure OpenAI, Claude