Core Software Engineer, C++

• Analyze and optimize the performance of the core ClickHouse database
• Work on query optimization, distributed query optimization, relational operators, caching, and low-level SIMD optimizations
• Extend existing and add new performance tests using real-world or synthetic datasets
• Help Support Engineering debug advanced customer performance issues
• Collaborate with other core teams to assess the performance impact of new features
• Support colleagues with performance tests and advice
• Resolve issues, review and finish pull requests, and answer questions from the open-source community through email, chats, Google Groups, and external Slack channels

• Solid professional software development experience in C++
• Experience with Unix Systems
• Strong knowledge of database internals and design
• Experience in performance engineering, ideally in a database or in high-frequency trading, simulation, or real-time data processing
• Ability to work well within and across engineering teams
• Willingness to work closely with the open-source community
• Strong problem-solving and production debugging skills
• Passion for efficiency, availability, scalability, and data governance
• High level of responsibility, ownership, and accountability
• Experience with ClickHouse is a bonus
• Experience in security, privacy, and compliance is a bonus
• Experience with TCP/IP and network programming is a bonus
• Experience developing cloud infrastructure services, preferably with Kubernetes, is a bonus
• Experience giving public talks at technical conferences and meetups is a bonus
• Previous contributions to open-source projects are a bonus

• Flexible work environment
• Employer contributions towards your healthcare
• Stock options
• Flexible time off in the US
• Generous time off entitlement in other countries
• USD$500 home office setup allowance for remote employees
• Company-wide offsites and global gatherings