Jacob Duffy
Electrical Engineer at Naval Surface Warfare Center (NSWC)
Madison, Wisconsin, United States
Summary
👤
Senior🎓
Top SchoolJacob Duffy is an electro-mechanical engineer with 11 years of experience focused on energy storage and propulsion power systems, currently advancing electrical energy storage and auxiliary power at NSWC Philadelphia. He blends mechanical and electrical expertise—grounded in a BSME and an MSEE from Widener University—to deliver practical, mission-oriented solutions that optimize system effectiveness. Jacob has hands-on experience across defense and engineering consultancies, transitioning from mechanical roles into systems-level electrical engineering work. He also contributes to open-source tooling, improving robustness and test coverage in the popular Ruby parallel processing library by addressing ActiveRecord/SQLite edge cases and signal handling. Known for pragmatic innovation, he seeks elegant cross-disciplinary solutions that reduce risk and improve operational availability.
11 years of coding experience
3 years of employment as a software developer
Master's degree, Electrical Engineering, Master's degree, Electrical Engineering at Widener University
Stackoverflow
1,319reputation
30kreached
12answers
6questions
Github Skills (10)
activerecord10
parallel-processing10
sqlite10
ruby10
testing9
homebrew6
hash6
google-chrome6
ruby-on-rails6
mysql6
Programming languages (14)
Github contributions (5)
grosser/parallel
Mar 2016 - Apr 2019
Ruby: parallel processing made simple and fast
Role in this project:
Back-end Developer
Back-end DeveloperContributions:13 commits, 9 PRs, 24 comments in 3 years 1 month
Contributions summary:Jacob primarily focused on enhancing the `parallel` Ruby library, specifically in relation to its interactions with ActiveRecord and SQLite. Their contributions include adding and refining test cases to ensure the library's correct behavior within an ActiveRecord/SQLite context. The user also addressed a signal handling issue, making the library more robust by ensuring a callable signal handler within the interrupt mechanism. These changes highlight a focus on testing, edge-case handling, and improving the library's overall stability.
concurrencyparallelmulti-threadingrubyparallel-processing
duffyjp/duffy
Dec 2014 - Jan 2022
Gem containing a collection things I find myself using across many projects.
Contributions:74 commits, 11 PRs, 54 pushes in 7 years 2 months
railsgemrubymyself
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