Sean Nowlan
Principal Engineer at Cognosos, Inc.
Smyrna, Georgia, United States
Summary
👤
Senior🎓
Top SchoolSean Nowlan is a Principal Engineer with 12 years' experience designing wireless, embedded, and networked systems for industrial IoT and safety applications, currently leading architecture and delivery at Cognosos. He combines hands-on firmware, kernel, and FPGA development with system-level design to deliver high-performance, low-power LPWA gateways and infrastructure. A long-time contributor to flagship open-source SDR projects like GNU Radio and Liquid-DSP, he brings rigorous QA and digital-domain fixes that improve real-world radio performance. His background includes DARPA Challenge–caliber coordinated SDR work at Georgia Tech Research Institute and practical experience building secure, production-ready embedded platforms (Yocto/OpenEmbedded, secure boot, U-Boot). Sean’s unusual blend of signal-processing depth and production security/bootchain expertise lets him bridge research-grade SDR techniques and manufacturable IoT products.
12 years of coding experience
16 years of employment as a software developer
M.S.E.C.E. Electrical & Computer Engineering, M.S.E.C.E. Electrical & Computer Engineering at Georgia Institute of TechnologyB.S. Electrical & Computer Engineering, B.S. Electrical & Computer Engineering at Lafayette College
Github Skills (16)
c1710
fourier-transform10
fft10
filtering10
c-language10
cprogramming-language10
dspic10
filter10
python10
gnuradio10
c1110
dspace10
digital-signal-processing10
algorithms9
memory-management9
Programming languages (4)
Github contributions (5)
gnuradio/gnuradio
Feb 2015 - Aug 2018
GNU Radio – the Free and Open Software Radio Ecosystem
Role in this project:
Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:27 PRs, 29 comments, 2 issues in 3 years 7 months
Contributions summary:Sean primarily contributed to the GNU Radio project by fixing bugs and adding new functionality to the digital domain. They addressed issues related to access code masks and burst shaper functionality, as well as adding tests for new blocks. The user also introduced a new tagged stream version of the correlate_access_code block, expanding its capabilities. Furthermore, the user improved debugging and error output in several blocks.
pythonwirelessc-plus-pluscybersecuritycommunications
jgaeddert/liquid-dsp
Jul 2017 - Nov 2022
digital signal processing library for software-defined radios
Role in this project:Back-end Developer
Back-end DeveloperContributions:5 commits, 5 PRs, 2 comments in 5 years 4 months
Contributions summary:Sean primarily contributed to the `liquid-dsp` library by fixing bugs and refactoring code related to digital signal processing algorithms. They addressed filter length issues within the `firdecim` and `firinterp` modules, and removed unnecessary code from example files. The user also made improvements to the codebase by adding and implementing new memory management methods for fft objects.
signaldigital-signal-processingdefinedmlscluster-computing
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