Jillian Kozyra
Staff Software Engineer Engineering Manager at Poggio Labs
San Francisco, California, United States
Summary
👤
Senior🎓
Top SchoolJillian Kozyra is a Staff Software Engineer and Engineering Manager in San Francisco with 15 years of experience building scalable backend and data platforms. She specializes in taking systems from prototype to production—designing high-throughput ingestion pipelines, optimizing SQL-heavy APIs, and shipping connector and ORM infrastructure across Node, Python, Spark, and Airflow stacks. Jillian has led and hired small platform teams, instituted engineering hiring and onboarding processes, and freed product engineers to focus on core features by creating dedicated support engineering workflows. Her background spans startups and tech giants—contributions include building testing-and-vaccination-scale systems at Curative and being a top Haskell contributor at Facebook—reflecting a rare fluency across Ruby, Python, Typescript, and functional languages. With degrees in CS, Russian Studies, and Physics, she combines technical depth with analytical rigor and cross-disciplinary curiosity.
16 years of coding experience
13 years of employment as a software developer
B.A., Computer Science, Russian Studies, Physics, B.A., Computer Science, Russian Studies, Physics at New York UniversityMA, Eastern European Studies, MA, Eastern European Studies at Uniwersytet Jagielloński w Krakowie
English, Russian, Polish, Scottish Gaelic
Stackoverflow
5reputation
1kreached
1answer
2questions
Github Skills (89)
bdc10
sec10
google-cloud-firestore10
edgar10
googleapis10
google-api10
xbrl10
amazon-kinesis9
sorbet9
typescript9
python8
google-cloud8
ruby8
pdf7
parsing7
Programming languages (7)
Github contributions (5)
jekozyra/jilliankozyra
Jul 2024 - Dec 2025
My Site
Contributions:22 PRs, 35 pushes, 27 branches in 1 year 4 months
jekozyra/polofield.bike
Jan 2024 - Jul 2026
Contributions:1 PR, 3 pushes, 2 branches in 2 years 6 months
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