Mazen Al-hagri
Senior Staff Software Engineer at Shopify
Ottawa, Ontario, Canada
Summary
👤
Senior🎓
Top SchoolMazen Al-hagri is a Senior Staff Software Engineer with 13 years of experience building and leading teams that deliver highly scalable, service-oriented systems across C++, Java, and Python. He has led business-critical platforms at Booking.com and now drives architectural and delivery excellence at Shopify, blending hands-on implementation with team leadership and strong practices around observability, testing, and security. His background spans HPC, mobile, and cloud—he co-developed a mobile app with over 20 million downloads, established an HPC center at a major Saudi university, and holds a USPTO patent—demonstrating a rare mix of research, product impact, and operational rigor. Based in Ottawa, he excels at taking projects from conception to production while mentoring engineers to write optimized, monitored, and well-documented systems. Notably, he transitions easily between deep systems work and shaping team engineering standards, making him effective on both code and organizational levers.
13 years of coding experience
7 years of employment as a software developer
Master's degree, Master's degree at King Fahd University of Petroleum & Minerals - KFUPM
Arabic, English
Github Skills (53)
datasets10
lists9
cpp-library9
shiny9
responsive-table9
prebuild9
expandable9
rows9
cpp9
portability8
open-datasets8
fact-checking8
readability8
apptainer8
singularity-container8
Programming languages (7)
Github contributions (5)
inparallel/pusherpp
May 2013 - Aug 2017
Contributions:85 commits, 2 PRs, 4 pushes in 4 years 3 months
server-librarycpppusherpusher-server
inparallel/pstat
Sep 2015 - Sep 2015
Contributions:25 commits, 22 pushes, 1 branch in 4 days
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