Johanan Ottensooser
AI Product at fiveonefour
Portland, Oregon, United States
Summary
👤
Senior🎓
Top SchoolJohanan Ottensooser is an AI product manager based in Portland with a decade of experience blending legal training, product strategy, and data systems engineering. A lawyer-turned-product-person with an LLM from Cornell Tech, he has led data product and near-real-time infrastructure work at Nike and helped scale a data-focused startup (Datalogue) through product, customer success, and sales to acquisition. At fiveonefour he is building open-source data frameworks that reflect his appetite for making complex data engineering workflows accessible to less-technical users. Known for reducing operational costs and surfaceing data product usage and spend, he brings a pragmatic, metrics-driven approach to product decisions. His background advising financial markets on fintech and blockchain gives him an uncommon regulatory and domain-aware perspective on AI product risk and compliance.
10 years of coding experience
4 years of employment as a software developer
Exchange Program Law, Exchange Program Law at Københavns Universitet - University of CopenhagenGraduate Diploma in Legal Practice, Graduate Diploma in Legal Practice at The College of Law AustraliaMaster of Laws - LLM Tech LLM: Law Technology and Entrepreneurship, Master of Laws - LLM Tech LLM: Law Technology and Entrepreneurship at Cornell TechBachelor of Law with First Class Honours and Bachelor of Business (Economics) with Distinction, Bachelor of Law with First Class Honours and Bachelor of Business (Economics) with Distinction at University of Technology Sydney
German, Hebrew, English
Github Skills (43)
python10
economy10
typescript10
analytics10
redpanda10
rust10
health9
clickhouse9
finance8
financial8
connectors6
shell6
code-generation6
ai6
git-repository6
Programming languages (6)
Github contributions (5)
Cash-Economy/BMGF
Sep 2016 - Dec 2016
How might we ensure low-income people who mainly live in a cash economy have positive financial health for life?
Contributions:359 commits, 352 pushes, 2 branches in 3 months
financialeconomyhealthincomelife
514-labs/LLM-query-test
Jul 2025 - Aug 2025
Performance comparison of ClickHouse vs PostgreSQL using LLM-style query patterns on realistic aircraft tracking data
Contributions:2 reviews, 16 PRs, 36 pushes in 20 days
clickhousellmpostgresqlpostgres
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