Dennis Ruffer
Embedded Firmware Engineer at T-Mobile
California, United States
Summary
🤩
Rockstar🎓
Top SchoolDennis Ruffer is an embedded firmware engineer based in California with a multi-decade track record building low-level firmware, boot ROMs, and device diagnostics across consumer, automotive, and IoT products. He combines hands-on expertise in Cortex-M, MSP430, STM32, ColdFire and PowerPC platforms with strong tooling and CI experience (GCC/IAR, Keil, Git/SVN, test frameworks and build automation). His work spans secure wireless stacks and hardware bring-up—contributions include Android infotainment flashing automation at Volvo and Thread mesh end-node drivers for Samsung’s ARTIK. A pragmatic leader, he embeds QA and testability into products to accelerate time-to-market and often guides teams to align individual goals with corporate outcomes. Less obvious: he’s fluent in Forth/Open Firmware and has repeatedly translated legacy systems into modern hardware/software environments, making him a strong choice for projects that bridge decades of embedded technology.
3 years of coding experience
35 years of employment as a software developer
BA, Mathematics and Computer Science, BA, Mathematics and Computer Science at Western Michigan University
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (18)
infiniband10
freertos10
git-repository10
mcu10
microcontroller10
hardware10
zephyr10
iot10
rtos10
bluetooth10
embedded10
architectures10
scalable10
zephyr-rtos9
bluetooth-le9
Programming languages (1)
Github contributions (5)
DRuffer-tmo/zephyr
May 2023 - May 2023
Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.
Contributions:3 pushes, 2 branches in 4 days
tmobile/DevEdge-IoTDevKit-ZephyrRTOS
Oct 2022 - Mar 2023
T-Mobile Zephyr OS is a fork of zephyrproject-rtos/zephyr that is shipped on the DevKit and used for contributing upstream.
Contributions:27 reviews, 25 commits, 72 PRs in 4 months
zephyr-osupstreamrtoszephyr-rtost-mobile
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