Senior Software Engineer - JVM Language Clients

📋 Description

• Own the Java client and JDBC driver end-to-end, including roadmap and API design.
• Drive throughput and latency improvements across the client and ClickHouse server.
• Partner with the Connectors team as an embedded internal customer.
• Engage with external partners on interoperability, regressions, and roadmap.
• Ship visible, measurable wins in throughput, stability, and developer experience.

🎯 Requirements

• 5+ years in data-intensive software (drivers, SDKs, ingestion, CDC, streaming).
• Deep Java/JVM expertise: memory model, GC tuning, profiling; throughput/latency.
• Hands-on experience building/extending a library others depend on; API design matters.
• Strong grasp of database fundamentals: SQL, query execution, OLAP.
• Concurrency in JVM: executors, reactive streams, backpressure, pooling.
• Thoughtful use of AI tools (Claude Cursor Copilot) with design and code review.
• Excellent written communication; comfortable design docs and RFCs.

🎁 Benefits

• Flexible work environment - Remote-friendly; operate in 20+ countries.
• Healthcare - Employer contributions towards healthcare.
• Equity in the company - Stock options for new team members.
• Time off - Flexible time off in the US, generous elsewhere.
• A $500 Home office setup if remote.
• Global Gatherings – opportunities for company-wide offsites.