QA Engineer - Core Database

About ClickHouse

Recognized on the 2025 Forbes Cloud 100 list, ClickHouse is one of the most innovative and fast-growing private cloud companies. With more than 3,000 customers and ARR that has grown over 250 percent year over year, ClickHouse leads the market in real-time analytics, data warehousing, observability, and AI workloads.

The company’s sustained, accelerating momentum was recently validated by a $400M Series D financing round. Over the past three months, customers including Capital One, Lovable, Decagon, Polymarket, and Airwallex have adopted the platform or expanded existing deployments. These customers join an established base of AI innovators and global brands such as Meta, Cursor, Sony, and Tesla.

We’re on a mission to transform how companies use data. Come be a part of our journey!

About the Team

The Core Engineering team is responsible for working on the beloved ClickHouse open-source project while working cross-functionally across engineering and product teams as we develop and expand our Cloud service offering. We are seeking a Senior Software Quality Engineer who will focus on improving the efficiency and quality of both our open-source and cloud offerings. You will build out automation of critical operational functions that ensure ClickHouse Cloud operates smoothly worldwide and at our massive scale. The ideal candidate for this position is someone with strong technical skills and a background in release engineering.

What will you do?

• Build and enhance test automation frameworks and develop automated test cases.
• Try out new features and ensure they land smoothly in Production.
• Test cross-functional implementations across internal teams at ClickHouse.
• Implement new testing strategies and automation for large and complex distributed systems.
• Evaluate the new functionality of ClickHouse for each release, and identify opportunities in the existing codebase for improvement.
• Engineer and improve existing testing infrastructure.

About you:

• Extensive knowledge of SQL.
• Previously worked in a similar SDET, Release Engineering, or QA role related to a classical database or distributed system.
• Have hands-on experience with any programming language (Python, Go, C++).
• Can read C++ code for validation.
• Working knowledge of Git, Linux and shell scripting.
• Experience with both manual testing and automation testing.
• Demonstrated ability to work collaboratively, including with remote teams. Ability to learn complex technology quickly in a fast-paced, team-driven environment.
• You have excellent communication skills and the ability to work well within and across engineering teams.
• You are a strong problem-solver and have solid production debugging skills.
• You thrive in a fast-paced environment and