Yury Izrailevsky

Co-Founder & President ClickHouse

Last Reviewed: September 26, 2026

Executive Summary

Yury Izrailevsky is co-founder and President of ClickHouse, the company built around the open-source column-oriented database used for real-time analytics, data warehousing and observability. He formed ClickHouse, Inc. in 2021 with the database’s creator, Alexey Milovidov, and CEO Aaron Katz. He took charge of product and engineering and brought in a cloud engineering team to build a managed service on top of the open-source project. He came from the large platforms. At Netflix he was Vice President, Cloud Computing and Platform Engineering and led the company’s move off its own data centres onto AWS. He then held a vice-president engineering role responsible for cloud products at Google, and before that he worked on Yahoo!’s data warehouse and search engine. By 2026 ClickHouse had raised a $400 million Series D and reported more than $250 million in cloud annual run-rate revenue.

Career Highlights

• Co-founder and President of ClickHouse, Inc. since its formation in 2021, running product and engineering.
• Brought the cloud engineering team to the new company, which launched ClickHouse Cloud and by May 2026 reported more than $250 million in cloud ARR and 4,000 customers.
• Vice President, Cloud Computing and Platform Engineering at Netflix. He co-wrote the February 2016 post announcing that the company had finished moving its systems to the cloud.
• Joined Netflix in 2010 to lead its cloud migration and, according to Index Ventures, grew an engineering organisation of about 700 people.
• At Google, held a vice-president engineering role with responsibility for products in its cloud portfolio.
• Worked on Yahoo!’s data warehouse and then its search engine from 2002.

Professional Journey

Izrailevsky began his career at a start-up and then moved to Yahoo!, where from 2002 he worked on the company’s data warehouse and then its search engine. In 2010 Netflix, which still depended on DVDs by mail, hired him to lead its move to the cloud. Netflix had started that journey after a major database corruption in 2008 left it unable to ship DVDs for three days. The company chose to replace vertically scaled systems in its own data centres with distributed services on Amazon Web Services. As Vice President, Cloud Computing and Platform Engineering, Izrailevsky co-wrote the February 2016 post announcing that the migration was finished. Index Ventures later described him leading an engineering team of about 700 people at Netflix.

He then moved to Google, where he was responsible for a number of products in its cloud portfolio. After some 20 years at large companies he told Index Ventures he had always meant to return to a smaller one. He had first heard about ClickHouse from his brother, then at Uber, and later from peers who used it.

ClickHouse began in 2009 as an internal project at Yandex, led by Alexey Milovidov, to generate analytical reports in real time from raw, non-aggregated data. It was released as open source in 2016. In September 2021 Milovidov announced ClickHouse, Inc. as the database’s new independent home. Its core developers moved over from Yandex, a business team came in under Aaron Katz, and a cloud engineering team came in under Izrailevsky. Milovidov stayed on as CTO, Katz became CEO and Izrailevsky took charge of product and engineering. The company raised about $50 million in a Series A led by Index Ventures and Benchmark. A month later it raised a $250 million Series B at a $2 billion valuation. It opened European offices in Amsterdam in 2022 and started early access to its cloud service that year. Izrailevsky has said his first hire was a security lead, a sign of how early the company set out to meet enterprise requirements.

The managed service has since become the centre of the business. ClickHouse raised a $350 million Series C in 2025. In January 2026 it closed a $400 million Series D led by Dragoneer Investment Group, acquired the LLM observability company Langfuse and introduced a native Postgres service. By May 2026 it reported more than $250 million in cloud annual run-rate revenue, more than triple the figure a year earlier, and 4,000 customers. The company now lists him as Co-Founder and President.

Education

No education record was found in any primary source.