Jeffrey Johnson
President at Cambridge Precision Dosing Inc.
Cambridge, Massachusetts, United States
Summary
👤
Senior🎓
Top SchoolJeffrey Johnson is a hands-on embedded systems engineer and founder with six years of focused experience designing firmware, Linux device drivers, bootloaders, and Android ports for ARM, x86, SoC and FPGA platforms. He has led product and research efforts as President of two companies, delivering medical informatics and adaptive drug-dosing visualization tools as well as TinyML-friendly signal-processing and neural network innovations. His work spans low-level hardware interfaces (SPI, USB, PCI, MII, touch displays, accelerometers) to higher-level networking, security and Android UI/UX, and includes practical deployments such as a Jacquard-enabled biker jacket and Variscite SOM Android ports. Jeffrey combines algorithmic rigor with product-minded visualization—synchronizing video and sensor data for analysis and tuning—and has hands-on expertise with AOSP, U-Boot, Grub, and Android OTA/FOTA. Based in Cambridge, MA, he pairs academic computer science training with a knack for turning complex, high-dimensional medical and sensor data into actionable, clinician-facing insights. An amusing aside visible in his GitHub bio: he’s careful to distinguish himself from other notable Jeffrey Johnsons.
6 years of coding experience
5 years of employment as a software developer
Bachelor's degree, Computer Science, Bachelor's degree, Computer Science at Goldsmiths, University of London
Github Skills (200)
benchmark10
beautifier10
bug-tracker10
vim10
libuv10
psl10
6800010
command-line-tool10
nvim10
portable10
udp10
memory-allocation10
matrix10
unix10
unicorns10
Programming languages (22)
Github contributions (5)
BAN-AI-Communications/cyclades-serial
Mar 2021 - Jul 2021
cyclades-serial: An RFC-2217 (serial over TELNET) client
Contributions:4 reviews, 24 commits, 8 PRs in 3 months
telnet-clientserialrfcrfc-2217telnet
reduce-algebra/icas-bundled
Mar 2021 - Dec 2023
icas-bundled: REDUCE scripts that are bundled with iCAS, a port of REDUCE to iOS, automatically mirrored from http://alsoftiphone.com/iCAS/bundledFiles/
Contributions:1 review, 2 PRs, 3 pushes in 2 years 9 months
swiftioscascomputer-algebra-systemicas
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