Jim Garrison
Developer, Quantum-Centric Supercomputing at IBM
Greater Pittsburgh Region United States
Summary
🤩
Rockstar🎓
Top SchoolJim Garrison is a Developer in Quantum-Centric Supercomputing at IBM who blends a PhD in theoretical condensed matter physics with 30+ years of software development and long-term open-source stewardship. He specializes in turning research-grade code into production-ready software—famously finding and removing exponential overheads, enforcing full test coverage, and hunting down elusive race conditions. At IBM he develops Qiskit addons (AQC-Tensor, circuit cutting) and co-leads the IBM Quantum open source chapter, while contributing to prominent projects including Qiskit and the Julia language. A published researcher with multiple Editors' Suggestions and PRL/PRX papers, Jim pairs rigorous theory with the editorial precision of a former public relations professional when writing papers and documentation. Based in Greater Pittsburgh, he prefers close collaboration with researchers to ship reproducible, efficient implementations that bridge research and production.
22 years of coding experience
5 years of employment as a software developer
Bachelor of Arts - BA, History and Psychology, magna cum laude, Bachelor of Arts - BA, History and Psychology, magna cum laude at Case Western Reserve UniversityDoctor of Philosophy - PhD, Physics, Doctor of Philosophy - PhD, Physics at UC Santa Barbara
Stackoverflow
4,237reputation
567kreached
34answers
19questions
hex
top-5%
statistics
top-5%
byte
top-5%
python
top-5%
Github Skills (74)
textbook10
documentations10
python10
testing10
repr10
qiskit10
circuits10
markdown10
develop10
urwid10
replit10
sh10
quantum-computing10
shell10
julia10
Programming languages (26)
Github contributions (5)
timholy/ProgressMeter.jl
Dec 2014 - Aug 2018
Progress meter for long-running computations
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1 release, 1 review, 29 commits in 3 years 8 months
Contributions summary:Jim primarily focused on enhancing the `@showprogress` macro within the `ProgressMeter.jl` library. They implemented features like handling `continue`, `break`, and `return` statements within loops, and expanded functionality to include typed and dictionary comprehensions. These modifications improved the macro's robustness and utility for monitoring the progress of various computational tasks. Furthermore, the user refactored and cleaned up the macro's internal structure.
progress-metermeterlong
JuliaLang/julia
Nov 2014 - May 2022
The Julia Programming Language
Role in this project:Back-end Developer & QA Engineer
Back-end Developer & QA EngineerContributions:7 reviews, 102 commits, 93 PRs in 7 years 6 months
Contributions summary:Jim contributed to the Julia programming language by implementing features, fixing bugs, and adding tests. They implemented `cd -` functionality within the REPL shell mode, introduced `inv()` for `UniformScaling`, and ensured output was directed correctly. Additionally, the user wrote tests for the shell mode's `cd` feature, ensuring code quality and verifying the new implementations.
sciencejulia-languagemachine-learningjulialangpetsc
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