Efrem Rensi
Software Developer at Angel Protection System
Oakland, California, United States
Summary
👤
Senior🎓
Top SchoolEfrem Rensi is a software developer and DevOps engineer with 11 years of experience building optimization engines, visualization tools, and reliable infrastructure, currently focusing on Nix/NixOS at Angel Protection System. As co-founder of Project Geminae he develops scheduling and financial optimization for upstream oil & gas, combining applied-math rigor with production-grade tooling. His background includes applied-math research in Krylov subspace methods and signal/visualization work, which informs a pragmatic approach to numerical stability and system performance. He’s shipped embedded and server software for an intelligent camera startup and contributed to civic open-data tooling, evidencing a mix of product, research, and community-minded engineering. Based in Oakland, he blends low-level numerical insight with hands-on DevOps and web/IoT experience, often favoring reproducible, declarative workflows via Nix.
10 years of coding experience
3 years of employment as a software developer
Master's Degree (PhD ABD) Applied Mathematics, Master's Degree (PhD ABD) Applied Mathematics at University of California, DavisBachelor of Science (BS) Applied Mathematics, Bachelor of Science (BS) Applied Mathematics at San José State University
Stackoverflow
124reputation
9kreached
8answers
0questions
Github Skills (200)
web-application10
micro10
google-maps10
react-leaflet10
commons10
mongodb10
css10
command-line10
strava10
python10
leafletjs10
datatables10
gis10
bounding10
vanilla-javascript10
Programming languages (14)
Github contributions (5)
ebrensi/TypedFastBitSet.js
Jan 2021 - Jan 2024
Speed-optimized BitSet implementation for modern browsers and JavaScript engines, uses typed arrays
Contributions:2 PRs, 5 pushes, 2 branches in 3 years 1 month
speedtyped-arraysbrowsersjavascriptarrays
aaryno/ry16_transcon_data
Jun 2016 - Mar 2023
Contributions:2 PRs, 1 comment in 6 years 9 months
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