Janos Breuer

    Full-stack AI application developer

    I build AI-powered systems for real business outcomes in complex domains. From RAG and agentic workflows to full-stack applications.

    See Featured Work
    Budapest, HungaryRemote consulting
    Janos Breuer

    Who I've worked with

    RealEyesLogMeInGoode CapitalLufthansa

    What clients say

    It was a pleasure working with Janos over the past two years. He helped us build a complex project from scratch into a full production system, supporting an important part of our revenue-generating workflow. I would happily work with him again in the future.

    BV

    Ben Venables

    Operations Lead, Goode Capital

    Janos and his team did an excellent job developing the mobile payment interface in our banking app. Both the business and the customers were satisfied.

    Balint Farago

    Balint Farago

    Project Manager, IT Integration & Transformation

    Janos is a professional and accountable resource. He delivered a powerful tool that we constantly use. He maintained constant communication to ensure the project aligned with our expectations. I highly recommend working with Janos.

    Luis De La Torre

    Luis De La Torre

    VP Global Operations, multinational QSR

    About Janos

    I'm an AI application engineer with 18+ years building production software in finance, SaaS, and regulated domains, from MVP to live systems.

    I value clear communication, pragmatic architecture, and real business outcomes.

    • Built an AI agent with RAG, tool use, and citation-aware outputs for a complex professional workflow
    • Led an engineering team for an enterprise remote-support SaaS used by vendors such as Microsoft and Vodafone
    • Shipped production systems for banking and trading desks
    • Budapest, Hungary
    • Remote consulting
    • Full-stack AI systems

    Have a project in mind?