John Dey is a Senior HPC Systems Engineer with 12+ years building and operating large-scale Linux clusters for pharmaceutical and research environments, currently supporting scientific computing at Fred Hutch. He led design and deployment of a 5,000-CPU water-cooled supercomputer and scaled Merck’s cluster from 172 nodes to over 1,000 (peaking at 5,000 CPUs) with just 2.5 FTEs while improving uptime and utilization. He combines systems engineering, storage leadership, and automation—contributing EasyBuild configs and build fixes to adapt scientific software for HPC toolchains. His pragmatic approach to hardware lifecycle design (blade reuse and board-only upgrades) cut E-waste by ~70% and accelerated upgrades from pallet to production in under two weeks. Skilled in job scheduling, parallel filesystems (Isilon, Panasas, Lustre), and data center automation, he uses TQM and usage analytics to drive measurable performance gains. Based in Seattle, he’s hands-on in both day-to-day Tier-3 support and strategic infrastructure design.
12 years of coding experience
21 years of employment as a software developer
Bachelor of Arts, Computer Science, Bachelor of Arts, Computer Science at University of Nevada-Las Vegas
A collection of easyconfig files that describe which software to build using which build options with EasyBuild.
Role in this project:
Back-end Developer & DevOps Engineer
Contributions:68 reviews, 259 commits, 329 PRs in 6 years 2 months
Contributions summary:John primarily contributes to EasyBuild configuration files, specifically focusing on adapting software builds for High-Performance Computing (HPC) environments. Their work involves modifying Makefiles, patching source code, and adjusting build configurations to integrate software with libraries like OpenSSL, OpenFOAM, and GEOS. The commits demonstrate expertise in configuring and troubleshooting build processes, ensuring compatibility with various compilers and dependencies, and adapting existing software for the EasyBuild framework.
Large Scale Cicular Calendar with Phase of Moon and Sunset/Sunrise data
Contributions:2 PRs, 16 pushes, 2 branches in 5 years 11 months
calendaraltitudenightsunrisesunrise-sunset
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John Dey - Senior HPC Systems Engineer at Fred Hutch