Herbert Siojo
California, United States
Summary
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Rockstar🎓
Top SchoolHerbert Siojo is a Staff Software Engineer and founder with 12 years of experience building and scaling startup systems where speed, ambiguity, and ownership matter. He has designed fault-tolerant, high-throughput architectures and led AI inference pipelines that process millions of resume reviews per month, combining schema-driven LLM outputs with human-in-the-loop evaluation to improve quality and auditability. His expertise spans data ingestion, retrieval, and query optimization (Postgres, ClickHouse), priority-aware workload management, and evolving task runners into stateful, fault-tolerant workflows. He pairs deep systems engineering with product-minded experimentation—shipping growth-focused features like email automation and A/B frameworks that move key funnels. Based in California and grounded in a Berkeley EECS background, Herbert thrives at the intersection of hard technical problems and measurable product impact, often making pragmatic trade-offs to deliver reliable results under bursty, production-scale workloads.
12 years of coding experience
17 years of employment as a software developer
BS, Electrical Engineering and Computer Science, BS, Electrical Engineering and Computer Science at University of California, Berkeley
English, Japanese, Tagalog, Chinese, Spanish, Portuguese
Stackoverflow
592reputation
19kreached
6answers
10questions
Github Skills (21)
google-auth-library10
ruby7
xcode6
uitableview6
iphone6
scroll6
keyboard6
autolayout6
uitextview6
objective-c6
deeplink6
ios6
fitness4
mobile4
javascript3
Programming languages (5)
Github contributions (5)
haabaato/haabaato.github.io
Mar 2014 - Dec 2014
Contributions:21 commits in 8 months
zendesk/chariot-tooltips
Jul 2015 - Aug 2015
A javascript library for creating on screen step by step tutorials.
Contributions:2 commits, 1 PR, 9 pushes in 10 days
javascript
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