Zachary Zeleznick
Senior Software Engineer II (L5) at Semgrep
Los Angeles, California, United States
Summary
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Rockstar🎓
Top SchoolZachary Zeleznick is a Senior Software Engineer II with 11 years of experience specializing in automation, infrastructure, and developer productivity, currently leading Growth Engineering at Semgrep to drive user acquisition and activation. He combines product-led engineering with rigorous instrumentation and telemetry to improve product outcomes and influenced over $1.5M in quarterly ARR through PQL-to-sales conversions. Previously at Snap he led cross-functional analytics and CI/test infrastructure work that cut developer wait times in half, improved conversion metrics, and reduced cancellations by applying software engineering, statistics, and computer-vision techniques. A dual-degree graduate in Bioengineering (B.S.) and Computer Science (B.A.) from UC Berkeley, he blends domain-crossing curiosity with hands-on full-stack skills and a founder’s mindset from a recent AI-powered edtech startup. Colleagues can expect a pragmatic engineer who measures impact through experiments and data while building tools that scale developer velocity.
11 years of coding experience
9 years of employment as a software developer
Bachelor of Arts (B.A.) Computer Science, Bachelor of Arts (B.A.) Computer Science at University of California, BerkeleyBachelor of Science (B.S.) Bioengineering and Biomedical Engineering, Bachelor of Science (B.S.) Bioengineering and Biomedical Engineering at UC Berkeley College of Engineering
Stackoverflow
46reputation
15kreached
9answers
0questions
Github Skills (78)
python10
semgrep10
ruby10
icloud10
javascript10
static-analysis10
typescript10
java10
go10
android10
mobile10
sast10
iphone10
static-code-analysis10
ios10
Programming languages (10)
Github contributions (5)
zzeleznick/config
Apr 2016 - Apr 2026
Contributions:6 pushes, 1 branch in 10 years 1 month
zzeleznick/pyicloud
Oct 2017 - Apr 2020
A Python + iCloud wrapper to access iPhone and Calendar data.
Contributions:23 commits, 6 PRs, 13 pushes in 2 years 5 months
icloudiphonepython
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