# Senior Firmware Engineer at Tin Can

- Company: Tin Can
- What the company does: The super-magical Wi-Fi landline for kids. No screens, no texting, no strangers — just real conversation with Grandma, besties, and contacts you approve. Plug in, twirl that cord, and time-travel to pure voice fun. Backed by Greylock.
- Company website: https://tincan.kids/
- Type: Startups
- Level: Senior
- Location: Seattle
- Work setup: On-site
- Pay: $180K to $200K base salary per year (USD)
- Posted: 2026-07-23
- Apply by: 2026-10-08
- Apply: https://jobs.ashbyhq.com/tin-can/814f0fe7-c186-45e6-a2d3-4059102f2cb2
- Page: https://www.1752.vc/careers/jobs/tin-can-senior-firmware-engineer/

## About the role

We're looking for a Senior Firmware Engineer to own the software that lives on every Tin Can. Our devices are the front line of the experience families feel most — how clearly a call sounds, and whether the phone just works when a kid picks it up to call Grandma. The firmware runs on ESP32 hardware and powers everything from connecting to Wi-Fi to placing a call to 911.

## What they're looking for

- 5+ years building and shipping firmware for connected devices, ideally in C/C++ on resource-constrained microcontrollers (ESP32/Espressif a big plus)
- You've shipped firmware to real devices in the field and owned over-the-air updates — staged rollouts, versioning, and failure recovery — at meaningful scale
- Comfortable debugging across the software/hardware boundary: reading schematics, reaching for a scope or logic analyzer, and reasoning about audio (I2S), Wi-Fi/BLE, power, and reset behavior
- A reliability mindset — you think in terms of what's reproducible, testable, and reversible, and you instrument things so you know what's really happening in the field
- A clear communicator who writes things down, because you want the whole team to understand the systems you build
- A collaborative, low-ego approach — everyone here sweeps the floor

Tags: Technology