Bright Data names Efim Dimenstein CTO and Ron Kol chief data scientist

Bright Data appointed Efim Dimenstein as chief technology officer and moved longtime CTO Ron Kol into a new chief data scientist role. The leadership changes come as the web data infrastructure company says it is scaling fast and pushing further into AI-era infrastructure.

Why it matters: - Bright Data is reshaping its top technical leadership while the company scales rapidly. - The move separates day-to-day platform engineering from future-facing data innovation. - The appointments signal a push to support AI systems, web data infrastructure and broader product expansion.

What happened: - Bright Data named Efim Dimenstein chief technology officer on July 23, 2026. - Bright Data appointed longtime CTO Ron Kol as the company’s first chief data scientist. - The company said the changes reflect its growth trajectory and long-term vision. - The announcement came from San Francisco.

The details: - Dimenstein most recently served as CTO and chief architect at NICE Actimize. - At NICE Actimize, Dimenstein led design and architecture for large-scale SaaS, multi-tenant cloud systems. - Those systems served some of the world’s largest financial institutions. - Or Lenchner, Bright Data’s CEO, said Dimenstein has experience building mission-critical, enterprise-grade platforms. - Lenchner said Bright Data is moving fast and needs systems and teams that can keep pace. - Dimenstein said Bright Data sits at the heart of the AI revolution by providing real-time, high-quality web data. - Kol is shifting from running engineering as CTO to exploring future innovations in data-adjacent areas. - Lenchner said Kol helped write the first lines of code for Bright Data and later built large-scale scraping architecture for major organizations. - Bright Data described Kol’s engineering vision as central to its position as one of the largest web data infrastructure companies in the world.

Between the lines: - The CTO change suggests Bright Data wants a more specialized split between scaling current systems and inventing new ones. - Moving a founding technical leader into a new research-oriented role can preserve institutional knowledge while creating room for fresh operational leadership. - Bright Data is positioning itself more explicitly around AI infrastructure, not just web data collection.

What's next: - Dimenstein will oversee the technology organization as Bright Data continues to expand. - Kol will focus on new innovations that Bright Data described as complementary to data and potentially transformative. - Bright Data is likely to keep tying product development to AI, compliance and large-scale data delivery.

The bottom line: - Bright Data is betting that deeper technical specialization at the top will help it scale faster and innovate more aggressively.