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ClickHouse Logo ClickHouse · IT - Software Development

Core Software Engineer (C++)

Germany · Job Posted December 07, 2025
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Job Description

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, our Performance Engineering team is seeking engineers who love optimizing the performance of distributed systems.

Job Responsibility

  • Analyze and optimize the performance of the core ClickHouse database
  • 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
  • Serve as a resource for the Support Engineering team, helping to debug the most advanced performance issues encountered by our customers
  • Closely collaborate with our other core teams to assess the impact of new features on performance and support colleagues with performance tests and advice
  • Work with our open-source community

Requirements

  • Solid professional software development experience in C++
  • Experience with Unix Systems
  • Strong knowledge in database internals and design
  • Experience in performance engineering, ideally in a database but other areas like high-frequency trading, simulation, real time data processing etc. are also okay
  • Ability to work well within and across engineering teams
  • Ready to work closely with our open-source community
  • Strong problem-solver and have solid production debugging skills
  • Passionate about efficiency, availability, scalability and data governance
  • Thrive in a fast-paced start-up environment
  • High level of responsibility, ownership, and accountability

Nice to have

  • 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

What we offer

  • Flexible work environment
  • Healthcare - Employer contributions towards your healthcare
  • Equity in the company - Every new team member who joins our company receives stock options
  • Time off - Flexible time off in the US, generous entitlement in other countries
  • A $500 Home office setup if you’re a remote employee
  • Global Gatherings – opportunities to engage with colleagues at company-wide offsites
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