Marco Bertoli

For 9 years, I have been working as a freelancer on web and application projects with high business value, ranging from developing complete products to designing high-performance backend architectures.

Applications & Products Developed

• I developed a proprietary SaaS specifically for law firms, enabling the automated extraction of critical data from large and complex PDF documents. Unlike traditional AI solutions, my tool is based on an advanced RAG (Retrieval-Augmented Generation) architecture, ensuring surgical precision without the risk of hallucination.

• iOS AND ANDROID application for a nationally renowned restaurant

Design of a complete web platform (ordering, internal management, workflow optimization).

Node.js backend architecture with secure REST API, role management, and optimized relational database.

• Simulation game used in aviation schools

Development of a real-time backend engine in Node.js and implementation of physical algorithms in Python.

Data synchronization via WebSockets for low-latency multi-user interactions.

• Several servers for live streaming games on TWITCH TIKTOK with live tracking without websockets

Design of event-driven architectures capable of handling simultaneous streams with fine-grained server load management and performance monitoring.

• ClassPass-type application (course & subscription booking)

Development of a booking system with slot management, secure payments, and advanced business logic.

• Peer-to-peer vehicle rental application

Implementation of a complete transactional system: user management, geolocation, dynamic calendar, internal messaging, and pricing logic.

Development and maintenance of high-performance backend services in a real-time, high-availability environment.

• Design and development of robust REST APIs in Node.js

• Implementation of low-latency architectures for real-time stream processing

• Implementation of real-time communication systems (WebSockets / streaming)

• Performance optimization and multi-user scalability management

• Integration with frontend interfaces (React) for live stream visualization

• Participation in architectural choices and best practices (clean code, testing, CI/CD)

• Monitoring, debugging, and continuous improvement of production services

Technical environment: distributed architectures, event-driven systems, high data volume.

• Development of custom websites (React / Next.js)

• Creation of secure REST APIs in Node.js

Connected backend applications (authentication, user management)

Frontend SEO