Sean Maclennan
Principal Systems Software Developer at BlackBerry QNX
Ottawa, Ontario, Canada
Summary
👤
Senior🎓
Top SchoolSean Maclennan is a Principal Systems Software Developer in Ottawa with 26 years of deep expertise in real-time and Linux kernels, embedded systems, C and assembly, and network protocol implementations. He has a long track record of building and porting kernel drivers and low-level system software across companies from startups to established firms, currently applying that experience at BlackBerry QNX. Known for pragmatic portability and reliability-driven design, he pairs hands-on coding with systems-level thinking to solve performance and latency challenges. His career includes recurring roles at PIKA Technologies and contributions to storage and networking stacks at Diablo Technologies and AFORE, reflecting sustained specialization rather than broad pivots. A detail not immediately obvious: his background includes military-standard technical writing early in his career, giving him an unusual knack for precise, auditable documentation alongside complex kernel work.
26 years of coding experience
28 years of employment as a software developer
College
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (46)
moto10
text-editor7
cgit6
kernel5
manjaro5
editor5
zen5
upstream5
distro5
libc4
linux4
linux-kernel4
branches4
slack3
bionic3
Programming languages (3)
Github contributions (5)
smaclennan/samtools
Nov 2019 - Jul 2024
Contributions:40 pushes, 1 branch in 4 years 8 months
smaclennan/get-comics
Sep 2013 - Jun 2022
Contributions:252 commits, 151 pushes in 8 years 10 months
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