Graeme Stewart
Research Software Scientist at DESY
Hamburg, Germany
Summary
🤩
Rockstar🎓
Top SchoolGraeme Stewart is a research software scientist and physicist with 13+ years leading large-scale scientific software efforts across CERN, DESY and major European projects. He has steered community initiatives like the HEP Software Foundation and led EC-funded work packages to raise software quality and prepare experiments for high-luminosity challenges. Equally comfortable in hands-on C++/C development and full-stack site maintenance, he has modernised core experiment software (ATLAS offline, multithreading, Rucio) and maintained the HSF website used by the community. A seasoned team leader and mentor, he has coordinated hundreds of developers, taught programming across languages, and supervised students and postdocs. He combines a PhD in plasma physics with decades of production-grade engineering, believing that better software directly enables better science. Based in Hamburg, he enjoys turning complex detector and data challenges into maintainable, high-performance code and reproducible community tools.
13 years of coding experience
20 years of employment as a software developer
Doctor of Philosophy - PhD, Plasma and High-Temperature Physics, Doctor of Philosophy - PhD, Plasma and High-Temperature Physics at University of Glasgow
Github Skills (8)
html10
css10
maintenance10
jekyll10
co8
software-design8
computation6
javascript4
Programming languages (11)
Github contributions (5)
HSF/hsf.github.io
Aug 2017 - Jan 2023
HEP Software Foundation GitHub website
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:221 reviews, 330 commits, 761 PRs in 5 years 6 months
Contributions summary:Graeme primarily focused on updating and maintaining the HSF's GitHub website. Their contributions involved updating the front-end layout and content, including announcements, events, and information related to the Community White Paper (CWP), as well as the Google Summer of Code (GSoC) program. The user also restructured the website's navigation, including menu items and page layouts, and made updates to various website components (such as the navigation bar, sidebars, and CSS).
hepfoundationcomputing
graeme-a-stewart/JetReconstructionBenchmarks.jl
Nov 2023 - Mar 2025
Contributions:1 review, 9 PRs, 53 pushes in 1 year 4 months
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