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Blaž Aristovnik, home

About me

I work across hardware and software: the board, the firmware on it, the interface someone uses, and the developer tools and AI agent tooling behind my own work. I am a co-founder of Paxia and have completed my bachelor’s degree in Electrical and Electronics Engineering at the University of Ljubljana.

Currently: hardware and firmware at Paxia, alongside software and AI agent tooling.

Work

  1. Sep 2022 to present

    Co-founder and Chief Hardware Officer

    Paxia

    Hardware development and electronics hardware design.

  2. Jun to Sep 2023

    Software Tester

    Tasking Labs d. o. o. (formerly iSystem Labs d. o. o.)

    Software testing and embedded software programming. Based in Trzin, Slovenia.

Education

  1. Completed

    Bachelor’s degree, Electrical and Electronics Engineering

    University of Ljubljana

    Electronics Engineering course. Studies began in October 2022.

  2. Sep 2018 to Jun 2022

    High School Diploma

    I. gimnazija v Celju

    Gymnasium programme.

What I do

  • Hardware

    Schematics, PCB layout and enclosures for laboratory instruments, from first prototype to a board that can be manufactured.

    • Paxia boards: schematic, layout and fabrication files.
    • Enclosures for Paxia instruments, plus a Python bridge that gives AI agents the Fusion API.

    Hover or tap a logo to see where I used it.

  • Embedded

    Firmware for the boards I design: sensor readout, Bluetooth LE, and power and timing tuned for battery use.

    • Firmware for Paxia instruments: sensor readout, BLE and battery-friendly timing.
    • Firmware for university and side projects.
    • Low-level firmware, drivers and small tools.
    • Application firmware on ESP32 and STM32.
    • The link between Paxia instruments and their software.

  • Software

    Web apps, CLIs and AI agent tooling, services that talk to hardware, and the occasional website.

    • Default language for web apps, CLIs and agent tooling.
    • Interfaces for web apps, including the Spice simulator and this site.
    • This site and the Spice simulation app.
    • CLIs, services and agent tooling.
    • The Paxia company website.
    • KiCad query tooling and a desktop agent runtime.
    • Services and shared framework packages.
    • Server provisioning, the Fusion 360 bridge and quick scripts.
    • The database behind my web apps.

  • Operations

    Running what I build: deployment, monitoring and the boring parts that keep it online.

    • VPS deployment and keeping services online, including the Spice simulation API.
    • Hosting for sites and Next.js apps.
    • Every project; GitHub for the open ones.