Senior Embedded/Firmware Engineer (freelance)

In short If you're a firmware engineer who's just as comfortable reading a schematic as writing C, and you've spent serious time inside ESP32 or STM32 projects, we want to talk. You'd join us on a freelance , time & material basis : you're paid for the hours you actually work on real client projects. The first three months are about figuring out if we're a good match. When things work out, and that depends on the work itself, the project pipeline, and business timing, there's a real path to our core team with a permanent contract and full benefits. Why intent? We've been designing and co-creating connected devices since 2008. Wearables, smart audio, health-tech hardware for clients like Oura and BOSE, backed by investors like a16z and Founders Fund. We're 60+ people, fully remote, and AI-native since before LinkedIn influencers discovered the term. Firmware is where most of our products actually live or die: BLE stacks, power budgets, sensor pipelines, OTA. If you like the kind of bug that only shows up at -10°C with a flat battery, you'll feel at home. Who this role is NOT for If you like being told exactly what to flash every morning and logging off the second the linker finishes, we're probably not your people. We look for engineers who ask "why" before "how", challenge assumptions, and dig into the hardware when the symptoms don't add up. We're AI-native and we expect you to treat AI as a daily multiplier, not a gimmick. What we expect: ownership of what you touch, straight talk when something on the board doesn't behave, and the kind of curiosity that makes you actually care about the device, not just the code that ships to it. What you'll do Plan, develop, and ship firmware for connected devices: wearables, audio, health-tech hardware Gather and analyze requirements from clients, then turn them into something that actually works on real silicon Consult clients and internal teams on stacks, tools, and trade-offs Work side by side with mobile, backend, and QA to