Core Software Engineer

• We are looking for exceptional C++ engineers to join our remote-first, global team and continue to scale and grow both our open source and ClickHouse Cloud offerings
• More specifically, we are seeking engineers who love scaling and optimizing the performance of highly distributed systems
• As part of the ClickHouse Core teams, you will contribute to, analyze, and optimize the performance of the core ClickHouse database. The team works on many different topics such as query optimization, distributed query optimization, relational operators (e.g. aggregation and joins), caching, and low-level optimizations like SIMD instructions
• 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

Communication skills Problem-solving skills C++ Linux Kubernetes, * You are ready to work closely with our open-source community. You participate in code reviews with patience and attention-to-detail fostering a culture of collaboration and mutual respect

• You have strong knowledge in database internals and design
• You are passionate about efficiency, availability, scalability and data governance
• You have experience in performance engineering, ideally in a database but other areas like high-frequency trading, simulation, real time data processing etc. are also okay
• You are a strong problem-solver and have solid production debugging skills
• You communicate well with others and have the ability to work well within and across engineering teams
• You bring along solid professional software development experience in C++. This includes experience with Unix/Linux Systems
• You thrive in a fast-paced start-up environment, seeing yourself as a partner with the business with the shared goal of moving forward and building together
• You have a 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

• Flexible work environment - ClickHouse is a globally distributed company and remote-friendly. We currently operate in 20 countries
• Healthcare - Employer contributions towards your healthcare
• Equity in the company - Every new team member who joins our company receives stock options
• Global Gatherings - We believe in the power of in-person connection and offer opportunities to engage with colleagues at company-wide offsites
• A $500 Home office setup if you’re a remote employee
• Time off - Flexible time off in the US, generous entitlement in other countries