Core Software Engineer; C+ Remote Germany; remote

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!

NOTE:

this role can be located anywhere Click House has a hiring presence.

With over 42,000 stars on Git Hub , Click House is the fastest and most resource efficient open-source database for real-time apps and analytics. Our Core Engineering teams own the heart of our Click House Open Source project. 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 Click House Cloud offerings.

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

What will you do?

• As part of the Click House Core Performance team, you will analyze and optimize the performance of the core Click House database. The team works on many different topics such as query optimization, distributed query optimization, relational operators (e.g. aggregation and joins), caching, and low-level optimizations like SIMD instructions.
• You will 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.
• You will serve as a resource for the Support Engineering team, helping to debug the most advanced performance issues encountered by our customers.
• As the core Click House database continues to move at a fast pace, you will closely collaborate with our other core teams to assess the impact of new features on performance and support colleagues with performance tests and advice.
• You will work with our open-source community. This will include resolving issues, reviewing and finishing PRs, answering questions from mail, chats, google groups, external Slack channels, etc.

About you:

• You bring along solid professional software development experience in C++. This includes experience with Unix Systems.
• You have strong knowledge in database internals and design.
• You have experience in performance engineering, ideally in a database but other areas like high-frequency trading, simulation, real time data processing etc. are also okay.
• You communicate well with others and have the ability to work well within and across engineering teams.
• You are ready to work closely with our open-source community. You participate in code reviews with patience and attention to detail fostering a culture of collaboration and mutual respect.
• You are a strong problem-solver and have solid production debugging skills.
• You are passionate about efficiency, availability, scalability and data governance.
• You thrive in a fast-paced start-up environment, seeing yourself as a partner with the business with the shared goal of moving forward and building together.
• You have a high level of responsibility, ownership, and accountability.
• Experience with Click House.
• 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.

For roles based in the
United States
, t he 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…