Expert Consulting and Support for ClickHouse

“We are very pleased to have had the opportunity to work with Benjamin. We were experiencing significant performance issues with ClickHouse that we were unable to resolve internally. Initially, we engaged another consulting firm, but their recommendation was to redesign our entire system—an approach that would have required several months to implement. After three weeks with no meaningful progress, we decided to discontinue that engagement. We then began working with Ben, who quickly took ownership of the issue. He started immediately after gaining access to our system, starting with a weekend. On his first pass, he was able to accurately identify the root cause of the problem. We implemented his recommendations, and they resolved our performance issues right away. We highly recommend Ben for any ClickHouse-related work.”

“We brought Benjamin in to help us diagnose and resolve performance issues in our ClickHouse implementation at Guestrix, where we process large volumes of restaurant data in real time. Within days, he helped us identify and fix several major inefficiencies, including excessive mutations, unnecessary deletes, and poorly optimised partitioning. Benjamin helped us to operationally improve query performance through better indexing and partition strategies, as well as rethink how our app interacts with the database. His insights on concurrency, batching, and system behaviour under load were invaluable. Throughout the engagement, Benjamin was fast, collaborative, flexible and sharp in his analysis. He helped us significantly reduce our database load, prevent duplicate data, and make the application noticeably more stable and responsive. Highly recommended.”

“Benjamin was excellent. We needed urgent help with our ClickHouse implementation and he was there for us even though it wasn’t planned. The issue we had was quite tricky, but he was patient, receptive, and really thorough. His advice helped us approach things the right way.”

“We asked Benjamin to guide us through some of the key architectural and design decisions for our new ClickHouse implementation within a very short timeframe. The sessions he led, along with the materials he shared, were exceptionally helpful and well structured, combining clear explanations with practical, hands-on demonstrations using highly relevant real-world examples. Benjamin’s guidance helped us quickly gain confidence in our approach and avoid several potential pitfalls. The advice we received ultimately saved us a significant amount of time, effort, and frustration, and proved extremely valuable in accelerating our implementation in the right direction.”