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Marco B.MB

Marco B.

AI Engineer & Full-Stack Developer | SaaS & LLM Ap

€650/day
Paris, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Marco

AI Engineer | Document AI | LLM Pipelines | AI Agents | Structured Data Extraction

Full-stack developer specializing in complex SaaS, I work on technical challenges with high business value: data structuring, extraction pipelines, real-time systems, and decision-making interfaces.
I am accustomed to handling ambiguous or critical issues where it's necessary to design the architecture, quickly resolve technical roadblocks, and deliver a product usable by business teams.
My approach is impact-oriented: I don't just focus on the code; I ensure that what is built is truly usable, performant, and aligned with business objectives.
Today, I notably develop SaaS solutions integrating AI and complex document processing (contracts, matrices, unstructured data), with a focus on output reliability and user experience quality.
  • French

    Native or bilingual

  • Italian

    Basic

  • Spanish

    Conversational

  • English

    Native or bilingual

Remote only
Primarily works remotely

Experience

  • HitachiRail
    Backend Developer
    SOFTWARE PUBLISHING
    February 2017 - December 2025 (8 years and 10 months)
    Development and maintenance of backend services with high performance constraints in a real-time and high-availability oriented 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 management of multi-user scalability
    • 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 services in production

    Technical environment: distributed architectures, event-driven systems, high data volume.
    HTML5 Shell Script Artificial intelligence
  • Welcome to the Jungle
    Full Stack Developer – Websites & Applications
    May 2014 - December 2016 (2 years and 7 months)
    • Development of custom websites (React / Next.js)
    • Creation of secure REST APIs in Node.js Connected backend applications (authentication, user management) Frontend SEO
    External API Integration JavaScript React.js Typescript Vite.js

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Education

  • Applied Mathematics and Computer Science
    Paris Dauphine
    2013

Skill set

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