Founder profile

Shachar Fienblit and the VAST Data engineering team

He built flash storage at Kaminario, then co-founded VAST Data with Renen Hallak and Jeff Denworth.

Shachar Fienblit is a co-founder of VAST Data. His title is Chief R&D Officer, and he leads the company's global engineering work.

He joined Kaminario in 2009 as VP of engineering. He later became its CTO. In that period he helped build K2, the company's all-flash storage array.

VAST Data was founded in January 2016 by Renen Hallak, Fienblit and Jeff Denworth. Early coverage listed Fienblit as R&D VP, and he was still known as the former Kaminario CTO.

VAST left stealth in 2019. In April 2026 it raised about $1B in a Series F led by Drive Capital at a $30B valuation.

Read the full VAST Data founder story

What does Shachar Fienblit do at VAST Data?

Shachar Fienblit is a co-founder of VAST Data and its Chief R&D Officer. He oversees global engineering at the company.

Where did Shachar Fienblit work before VAST Data?

He worked at Kaminario from 2009. He joined as VP of engineering and later became CTO. At Kaminario he helped build the K2 all-flash array.