👋 I'm Chava, a Full Stack Developer specializing in advanced business systems and innovative technological solutions.

2025-2026 | Personal Project

Comprehensive platform for real estate property management with full automation of business processes.

System Features:

• 🏠 Property management with occupancy calendar
• 💰 Financial system with automated recurring payments
• 📋 Kanban-style task management
• 📁 Cloud document repository
• 📊 Advanced reporting
• 🤝 CRM system with bi-directional Gmail synchronization

Smart Automation:

• Automated payment reminders
• Incoming communication classification (emails and calls)
• Phone call recording with com1 integration
• Centralized customer interactions in one smart system

Technologies:

• Frontend: React 19, TypeScript, Vite
• Backend: NestJS, Prisma ORM
• Database: PostgreSQL
• Cloud: AWS S3
• Integrations: Gmail API, OAuth 2.0, com1, grow

Links:

• Frontend: GitHub Repository (Private)
• Backend: GitHub Repository (Private)

2025 | Team Development

Participation in developing a comprehensive system for Chabad Tafan organization.

System Features:

• 🌐 Responsive public website
• 👥 Multi-level user management platform
• 📦 Advanced inventory system
• 🚚 Automated distribution processes
• 📱 Integrations: SMS, payments, Google Calendar
• 📈 Analytics reporting

Technologies:

• Frontend: React.ts
• Website: Next.js
• Backend: Node.js
• Database: PostgreSQL
• Version Control: Git (team collaboration)

Link: GitHub Repository (Private)

2025

Advanced mediation system between event producers and interested clients.

Advanced Features:

• ⚡ High performance and rapid order creation
• 🔄 Real-time data synchronization
• 🔍 Advanced search engines
• 📄 Automatic document export
• 🎨 Professional-grade UX/UI interface
• 🤖 AI tools integration

Technologies:

• Frontend: React, Redux, Hooks, MUI
• Backend: C# .NET Core, Web API, MVC
• Database: SQL Server
• Version Control: GitHub

Frontend:

• React 19, TypeScript, JavaScript
• Next.js, Vite
• Redux, Hooks
• Material-UI (MUI)

Backend:

• NestJS, Node.js
• C# .NET Core, Web API
• RESTful APIs, MVC Architecture

Databases:

• PostgreSQL, SQL Server
• Prisma ORM

Cloud & DevOps:

• AWS S3
• Git, GitHub
• OAuth 2.0

Integrations:

• Gmail API, Google Calendar
• SMS Services, Payment Systems
• com1, grow

• GitHub: @chava-rottenberg
• Email: [chavi4694@gmail.com]

"Building technological solutions that transform the way businesses operate"