Stefano Ortona
Staff Software Engineer at Airbnb
London, England, United Kingdom
Summary
👤
Senior🎓
Top SchoolStefano Ortona is a product-minded Staff Software Engineer with a decade of experience building scalable distributed systems, currently shaping Airbnb’s Co-Hosting experience. He blends a strong mathematical and research background (PhD-level work in web data extraction and NLP) with hands-on delivery of high-throughput ML and integrity systems at Meta and Facebook that mitigated fraud and impersonation at global scale. Comfortable owning features end-to-end, he balances product tradeoffs, success metrics, and technical constraints while leading and mentoring teams of 6–12 engineers. His stack spans cloud infra (AWS, GCP, Terraform), streaming and search technologies (Kafka, Elasticsearch), and ML/GenAI tooling (PyTorch, NLP pipelines). Notably, his academic work produced practical tools for automated web data extraction and knowledge-graph repair that preceded his industrial focus on data acquisition and integrity. Based in London, he thrives at the intersection of product, research, and robust engineering.
10 years of coding experience
8 years of employment as a software developer
High School Scientific subjects, High School Scientific subjects at Liceo Scientifico Statale FarnesinaBachelor’s Degree Computer Engineering, Bachelor’s Degree Computer Engineering at University of Bergen (UiB)Master Degree Computer Engineering, Master Degree Computer Engineering at Università degli studi Roma TRE
English, Italian, Spanish
Github Skills (12)
semantics9
shacl8
linked-data8
sparql7
semantic-web7
rdf7
hash7
discovery7
tlaplus7
knowledge-graph5
declarative4
google2
Programming languages (2)
Github contributions (5)
stefano-ortona/google-hash-code
Feb 2018 - Feb 2022
Repository to provide solutions for Google hash code competition
Contributions:2 PRs, 101 pushes, 1 branch in 4 years
google-hashgoogle-hash-codehashhash-code
stefano-ortona/rudik
Sep 2017 - Nov 2018
Repository for RuDiK, a system for discovering declarative logical rules over RDF Knowledge Bases
Contributions:20 commits, 4 PRs, 25 pushes in 1 year 2 months
basesjsonldlinked-datadiscoveringknowledge
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