Smart Design is searching for a freelance embedded Linux platform engineer to join us for an exciting client project.

We build x86-based Linux devices for the field. You'll own the platform layer, from firmware power-on to a locked-down, encrypted system, plus the kernel and device integration underneath our applications.

What you'll do

Maintain the x86 secure boot chain (UEFI, shim, bootloader, signed kernels and modules)
Implement full disk encryption with TPM2-based unlocking and recovery
Configure, patch, and compile custom Linux kernels
Write and maintain kernel modules for custom hardware
Integrate USB devices across classes, and write udev rules for naming, permissions, and hotplug

Required qualifications

UEFI secure boot on x86, including key management and module signing
Full disk encryption on Linux (LUKS2, ideally with TPM2)
Solid understanding of the x86/UEFI boot process
USB protocol and device classes (HID, CDC, UVC, UAC, mass storage)
udev rules
Kernel module development and kernel compilation
Strong C, plus Bash and Python

Nice to have

Hardware debugging tools (logic analyzers, USB analyzers)
Yocto or Buildroot
USB gadget mode

The role will be full-time, in a hybrid capacity, with ability to be onsite in our Brooklyn studio at least every other week.

Hourly rate dependent on years of experience, $100 up to $130/hour.