Joseph Gelfand
Software Engineer at Amazon
Fort Collins, Colorado, United States
Summary
👤
Senior🎓
Top SchoolJoseph Gelfand is a software engineer with a decade of hands-on experience building backend systems and tooling across Amazon, Lockheed Martin, and earlier roles in DevOps and research. A Colorado State University double major in mathematics and computer science, he blends algorithmic rigor with practical engineering—evidenced by his undergraduate research on triangle-triangle matrix multiplication that won RMACC 2018. Comfortable working independently or on agile teams, he has shipped C++, Java, C#, JavaScript, and automation using Roslyn to modernize legacy UIs. Based in Fort Collins, he favors backend challenges and brings a knack for finding repeatable, automatable solutions when porting or optimizing code.
10 years of coding experience
2 years of employment as a software developer
Bachelor's degree, Mathematics and Computer Science, Junior, Bachelor's degree, Mathematics and Computer Science, Junior at Colorado State University
English
Github Skills (9)
2d-game9
sourceforge8
game-development8
arcade7
continuation7
java6
android5
libgdx4
python3
Programming languages (5)
Github contributions (5)
JGelfand/The_Goblin_Rebellion
Sep 2017 - Sep 2018
Contributions:74 commits, 69 pushes, 1 branch in 1 year
JGelfand/cs414-f19-012-RuntimeTerror
Sep 2019 - Dec 2019
CS 414 group project repo
Contributions:3 releases, 58 PRs, 67 pushes in 2 months
python
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