Software Engineer; C+ chDB

Recognized on the 2025 Forbes Cloud 100 list, Click House is one of the most innovative and fast-growing private cloud companies. With over 2,000 customers and ARR that has more than quadrupled over the past year, Click House leads the market in real-time analytics, data warehousing, observability, and AI workloads. Click House’s incredible momentum was confirmed in its recent $350M Series C financing that included new, tier one investors, Khosla Ventures, BOND, IVP, Battery Ventures and Bessemer Venture Partners.

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

The Core Engineering team for chDB is responsible for developing our high-performance in-process SQL engine, powered by Click House, while working cross-functionally to enhance multi-language ecosystem integration. We’re looking for a highly proficient C++ engineer who will work on our core engine and help expand our language binding capabilities across Python, Go, Ruby, Java, NodeJS, Bun, Rust, and R ecosystems.

• Develop features for the chDB core engine in C++, working on areas like performance optimization, object serialization, and Data Frame operations
• Design and implement language bindings for various programming languages
• Closely collaborate with our integration teams to ensure seamless compatibility across language ecosystems, particularly with data science tools and frameworks
• Improve the robustness of chDB through comprehensive testing across different language bindings
• Serve as a technical resource for the multi-language community, helping debug advanced issues and optimize performance
• Work with our open-source community, including resolving issues, reviewing PRs, and providing guidance through various communication channels

• Strong professional software development experience in C++
• Experience with Unix systems and cross-platform development
• Experience in one or more: high-performance computing, in-memory databases, data processing engines, concurrency, and multithreading
• Familiarity with multiple programming languages, particularly Python, Go, Java, Node.js, or Rust
• Strong communication skills and ability to work effectively within and across engineering teams; some professional working proficiency with English is required
• Experience with data processing frameworks and SQL engines
• You’re passionate about building developer tools and improving cross-language interoperability
• You thrive in a fast-paced environment and can balance technical excellence with practical solutions
• You have a high level of ownership and accountability, with a focus on delivering reliable, performant code
• Experience with database internals and query optimization
• Familiarity with package management and build systems across different languages
• Experience with data formats like Parquet, Avro, and Arrow
• Contributions to cross-language tools or related open source projects
• Experience optimizing performance for large-scale data operations
• Background in developing APIs and creating developer documentation
• Knowledge of Web Assembly and cross-platform compilation

For roles based in the United States, the typical starting salary range for this position is listed above. In certain locations, such as Los Angeles, CA, the San Francisco Bay Area, CA, the Seattle, WA, Area, and the New York City Metro Area, a premium market range may apply, as listed.

These salary ranges reflect what we reasonably and in good faith believe to be the minimum and maximum pay for this role at the time of posting. The actual compensation may be higher or lower than the amounts listed, and the ranges may be subject to future adjustments.

An individual’s placement within the range will depend on various factors, including (but not limited to) education, qualifications, certifications, experience, skills, location, performance, and the needs of the business or organization.

• Flexible work environment - Click House 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…