Senior Embedded Firmware Engineer

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Senior Firmware Engineer developing production-grade firmware for Matter-enabled devices from bring-up to certification. Working closely with hardware engineers and cross-functional teams to deliver production-ready devices.

Posted 5/3/2026contractRemote • 🇨🇷 Costa RicaSenior💰 $60 per hourWebsite

Tech Stack

Tools & technologies

Flash

About the role

Key responsibilities & impact

Developing production-grade firmware for Matter-enabled devices
Owning firmware development across the full device lifecycle
Participating in hardware debugging and validation
Collaborating closely with hardware engineers and cross-functional teams

Requirements

What you’ll need

10+ years professional embedded/firmware engineering in C/C++
Significant experience with ESP-IDF — not Arduino wrappers
Direct, demonstrable work implementing Matter on ESP32-series silicon
Hands-on with at least one Matter transport at the firmware level
Experience debugging commissioning flows, interop failures, and protocol-level issues
Familiarity with secure boot, flash encryption, and device attestation in the Matter context
Comfortable reading specs and translating them into working firmware
Must reside in Costa Rica
Must be authorized to work without sponsorship on a permanent basis

Benefits

Comp & perks

Flexible work arrangements
Professional development opportunities

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills & Tools

embedded engineeringfirmware developmentCC++ESP-IDFMatter implementationdebuggingsecure bootflash encryptiondevice attestation

Soft Skills

collaborationcommunication