Core Software Engineer (c++) - Remote

ClickHouse ClickHouse · Data AI · Engineering

Core Software Engineer (C++) at ClickHouse, a fast-growing cloud company specializing in real-time analytics, data warehousing, observability, and AI workloads. The role focuses on optimizing the performance of the core ClickHouse database, including query optimization, distributed systems, and low-level C++ optimizations. Responsibilities include developing performance tests, debugging advanced performance issues, collaborating with other core teams, and engaging with the open-source community.

What you'd actually do

  1. As part of the ClickHouse Core Performance team, you will analyze and optimize the performance of the core ClickHouse 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.
  2. 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.
  3. You will serve as a resource for the Support Engineering team, helping to debug the most advanced performance issues encountered by our customers.
  4. As the core ClickHouse 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.
  5. 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.

Skills

Required

  • solid professional software development experience in C++
  • Unix Systems
  • strong knowledge in database internals and design
  • experience in performance engineering
  • communicate well with others
  • ability to work well within and across engineering teams
  • ready to work closely with our open-source community
  • strong problem-solver
  • 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