Robert Alfaro
Key Staff Firmware Engineer at Mattel, Inc.
Concord, California, United States
Summary
👤
Senior🎓
Top SchoolRobert Alfaro is a Key Staff Firmware Engineer with eight years of embedded systems experience designing secure, manufacturable firmware for consumer electronics. Based in Concord, CA, he has led security-focused C libraries (P256, AES128-CTR, ECDSA/ECDH) across multiple SoCs and ported them to Python and Node.js for factory tooling and cloud integration, enabling COPPA-compliant product lines. He builds end-to-end solutions—from ESP32 real-time voice/chat firmware and sensor data pipelines to Raspberry Pi provisioning stations that saved Mattel over $100k versus industrial alternatives. Comfortable across Linux device drivers, RTOS, and higher-level tooling, he blends hardware debugging skills with software automation (Jenkins, CI, OTA) and occasional creative hacks like DTMF log retrieval to avoid disassembly. Known as a pragmatic engineer who turns prototypes into production-ready systems, he also adapts and extends open-source tools to modernize internal content and manufacturing workflows.
8 years of coding experience
10 years of employment as a software developer
Fullerton CollegeUdacityBachelor of Science Computer Engineering Technology, Bachelor of Science Computer Engineering Technology at DeVry UniversityUdemy
English, Spanish
Github Skills (141)
custom-component10
python10
webradio10
automation10
esp3210
home-assistant10
espressif10
mqtt10
compose10
dac10
audio10
music10
home-automation10
platformio10
iot10
Programming languages (10)
Github contributions (5)
Mattel/arduino-esp32
May 2019 - Jun 2022
Arduino core for the ESP32
Contributions:22 pushes, 20 branches, 1 comment in 3 years 2 months
rp2040arduino-corenimblercesp8266
robert-alfaro/genius-lyrics
Jun 2019 - Jan 2023
Home Assistant custom component for fetching song lyrics from Genius.com
Contributions:12 releases, 3 reviews, 26 commits in 3 years 7 months
home-assistant-customhome-assistant-custom-componentsongassistantfetching
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