Firmware Engineer

Digitailor; San Francisco (CA); Sur place; USD 160 000 - 250 000; Plein temps

Résumé du poste

Pocket is seeking an embedded firmware engineer for an in‑person role in San Francisco, 6 days a week. You’ll read schematics, bring up peripherals, and trace issues from app symptoms to drivers on Bluetooth/BLE, USB or Wi‑Fi.

You should have a degree in EE/CS or equivalent, strong debugging skills on real hardware, and comfort with RTOS like Zephyr or ARM Cortex‑M platforms. Prior audio‑FW or codec experience is a plus.

Qualifications

• Ability to read schematics and datasheets, bring up peripherals and follow a problem from an app symptom to driver/hardware.
• Understanding of embedded device interfacing with phones over Bluetooth/BLE, USB or Wi‑Fi with commands, status, retries, compatibility.
• Open to any experience level with no minimum years; show what you’ve built and how you solve embedded problems.
• Audio‑device firmware experience is a strong plus; experience with mic/ADC paths, I²S/PDM, PCM/WAV, codecs is valuable.
• Experience with Zephyr or similar RTOS, ARM Cortex‑M platforms or vendor SDKs is a strong plus.
• Experience with flash/SD storage, FAT or LittleFS, recovery after power loss, and preserving files during concurrent recording/sync is a strong plus.
• Experience integrating firmware with iOS/Android apps, BLE GATT services, and device SDK interfaces is a strong plus.
• Experience taking embedded products from prototype to manufacturing and supporting devices in customers’ hands is a strong plus.

Responsabilités

Connaissances

Schematic reading

Peripherals bring-up

Bluetooth/BLE/USB/Wi‑Fi interfaces

Problem reproduction from field

Ownership & cross-team communication

Embedded systems fundamentals

Audio firmware concepts

Debugging across phones/OS versions

Formation

Bachelor's degree in EE/CE/CS or equivalent

Outils

Git

Zephyr RTOS

ARM Cortex‑M

Python scripting

Description du poste

What We’Re Looking For

Ability to read schematics and datasheets, bring up peripherals, and follow a problem from an app symptom down to the driver or hardware Understanding of how embedded devices interface with phones or other hosts over Bluetooth/BLE, USB or Wi‑Fi, including commands, status reporting, disconnects, retries, compatibility and partial transfers, or the ability to learn this quickly Git, maintainable code, and tests that catch failures on real hardware High ownership and clear communication across teams: you can turn an intermittent field report into a reproducible issue and a verified fix A degree in Electrical Engineering, Computer Engineering, Computer Science, or equivalent practical experience Open to any experience level, with no minimum years of experience. Show us what you’ve built and how you solve embedded problems Audio‑device firmware experience (voice recorders, microphones, headsets, wearables, or other products where capture quality and uninterrupted recording matter) is a strong plus Experience with microphone and ADC signal paths, I²S/PDM, PCM/WAV, Opus or MP3 codecs, gain control, filtering, noise suppression or voice activity detection, and the ability to measure audio quality and explain the tradeoffs, is a strong plus Experience with Zephyr or a similar RTOS, ARM Cortex‑M, Actions Semiconductor platforms, or vendor SDKs and proprietary DSP components is a strong plus Experience with flash or SD storage, FAT or LittleFS, recording recovery after power loss, and preserving files during concurrent recording and sync is a strong plus Experience with low‑power consumer electronics, bootloaders, secure boot or signed updates, Python scripting, CI and production test fixtures is a strong plus Experience integrating firmware with iOS or Android companion apps, designing BLE GATT services or device SDK interfaces, and debugging interoperability across phone models, OS versions and app background states is a strong plus Experience taking embedded products from prototype through manufacturing and supporting devices already in customers’ hands is a strong plus What we offer Full‑time role, in person in San Francisco 6 days a week Base salary of $160K–$250K, depending on experience About Pocket Pocket is a Y Combinator W26 company building a premium hardware plus software product in the AI voice recorder space. We are obsessed with quality and speed. We are scaling very fast in the US and European markets and building a device experience that can become the category leader.