Core Software Engineer (C++) - Remote

ClickHouse is one of the most innovative and fast-growing private cloud companies, recognized on the 2025 Forbes Cloud 100 list. They are looking for exceptional C++ engineers to join their remote-first team to contribute to the performance optimization of the ClickHouse database.

Responsibilities:

• As part of the ClickHouse Core teams, you will contribute to, analyze, and optimize the performance of the core ClickHouse database
• You will ensure that the database performance does not deteriorate over time by extending existing and adding new performance tests, based on real-world or synthetic datasets
• You will serve as a resource for the Support Engineering team, helping to debug the most advanced performance issues encountered by our customers
• This includes an on call rotation as well as participation in our external community support channels
• As the core ClickHouse database continues to move at a fast pace, you will closely collaborate with our other teams to assess the impact of new features on performance and reliability
• You will work with our open-source community. This will include resolving issues, reviewing and finishing PRs, answering questions from mail, chats, google groups, external Slack channels, etc

Requirements:

• Solid professional software development experience in C++
• Experience with Unix/Linux Systems
• Strong knowledge in database internals and design
• Experience in performance engineering, ideally in a database but other areas like high-frequency trading, simulation, real time data processing etc. are also okay
• Ability to communicate well with others and work well within and across engineering teams
• Willingness to work closely with the open-source community
• Participation in code reviews with patience and attention-to-detail fostering a culture of collaboration and mutual respect
• Strong problem-solver with solid production debugging skills
• Passion about efficiency, availability, scalability and data governance
• Ability to thrive in a fast-paced start-up environment
• High level of responsibility, ownership, and accountability
• Experience with ClickHouse
• Experience in security, privacy, and compliance
• Experience with TCP/IP and network programming
• Experience developing cloud infrastructure services, preferably with Kubernetes
• Experience giving public talks at technical conferences and meetups
• Previous contributions to open source projects