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Joao SchimJS

Joao Schim

Embedded systems architect

€595/day
The Hague, NL
15+ years
Embedded Systems
Linux
C
PCB Design
electronic engineering

Average response time: 1 hour

About Joao

I have spent over 30 years designing electronics, developing software, and delivering agile technical projects. I specialize in taking products cleanly from an initial schematic to a working, optimized hardware-software system.

• Hardware Design: Custom schematic capture and multi-layer PCB layout, with recent projects focused on Esspressif microcontrollers and Allwinner SoCs.

• Linux & Embedded Software: Writing efficient C code within constrained environments. As an open-source contributor since the mid-90s, I have a foundational understanding of the Linux kernel, build systems, and its broader ecosystem.

I am highly self-reliant and comfortable executing complex technical sprints independently, while maintaining strong feedback loops with engineering teams.
Semiconductor and Hardware
Consumer Electronics and Appliances
Environmental and Sustainable Development

  • Dutch

    Native or bilingual

  • English

    Fluent

  • German

    Conversational

  • Greek

    Conversational

Remote only
Primarily works remotely

Experience

  • Zonnedimmer
    Zonnedimmer
    INTERNET OF THINGS (IOT)
    February 2025 - November 2025 (9 months)
    The Hague, Netherlands
    Realization of a consumer product to measure the amount of solar energy that goes back on the grid. The solar panels are dimmed according to the total available capacity on the grid.
    PCB Design Embedded Systems software architect C electronic engineering
  • Schimsalabim
    Embedded systems architect
    TECH
    November 2018 - Today (7 years and 7 months)
    The Hague, Netherlands
    Establish schematic capture and PCB design for custom products. Also take on agile project management and testing frameworks (CI/CD). Create BSP’s based on Linux / buildroot ecosystem and provide custom C kernel drivers and user-land software. Clients were mainly small startups in the IoT / networking segment across Europe.

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Education

  • Master Professional Business Adminstration
    NCOI
    Master Professional Business Adminstration
  • CISSP (Certified Information Systems Security Professional)
    Knowledge Academy
    CISSP (Certified Information Systems Security Professional)
Check out Joao's education

Categories