Senior Software Engineer - JVM Language Clients

2 hours, 30 minutes ago
Full-time
Senior
Software Development
ClickHouse

ClickHouse

ClickHouse provides a fast open source column-oriented database management system that enables users to generate real-time analytical data reports through SQL queries, catering to the needs of industries requiring efficient data processing and analysis.

IT Services
51-250
Founded 2021
$300M raised

Description

  • Own the Java client and JDBC driver end to end, including roadmap, API design, performance, release engineering, and partner-facing support.
  • Improve throughput and latency across the client and ClickHouse server.
  • Partner daily with the Connectors team to understand driver needs and ship updates that support their work.
  • Work directly with external partners on interoperability, regressions, and roadmap alignment.
  • Deliver measurable improvements in throughput, stability, and developer experience.
  • Use written proposals, design docs, and RFCs to help shape future investment and technical direction.
  • Engage with community issues, external contributors, and public design discussions as part of working in the open.

Requirements

  • 5+ years of software engineering experience, with a significant portion focused on data-intensive systems such as drivers, SDKs, ingestion, CDC, streaming, or analytics.
  • Deep Java and JVM expertise, including the memory model, GC tuning, profiling, and reasoning about throughput and latency at the byte level.
  • Experience building or substantially extending a library that other engineers depend on.
  • Strong understanding of database fundamentals, including SQL, query execution, and analytical/OLAP workloads.
  • Solid instincts on JVM concurrency, including executors, reactive streams, backpressure, and connection pooling.
  • Thoughtful, transparent use of modern AI development tools such as Claude Code, Cursor, or Copilot, along with strong independent design and code review judgment.
  • Excellent written communication for collaborating through design docs, PR descriptions, and RFCs.
  • Comfort engaging in open-source and public-facing technical work with community issues and external contributors.
  • Working knowledge of JDBC internals, ADBC, or Arrow / Arrow Flight SQL (preferred).
  • Experience designing or evolving wire protocols, or contributing to a widely used network client (preferred).
  • Prior contributions to open-source data infrastructure such as Kafka, Spark, Flink, dbt, Debezium, or Iceberg (preferred).
  • Working knowledge of ClickHouse or another columnar/OLAP engine (preferred).

Benefits

  • Flexible, remote-friendly work environment with a globally distributed team operating in over 20 countries.
  • Employer contributions toward healthcare.
  • Equity in the company through stock options for new team members.
  • Flexible time off in the US and generous time off in other countries.
  • A $500 home office setup stipend for remote employees.
  • Opportunities to connect with colleagues through company-wide Global Gatherings and offsites.
  • Competitive salary with location-based premium market ranges in some areas, such as the San Francisco Bay Area and New York City Metro Area.

Interested in this position?

Apply directly on the company website

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