Senior Software Engineer - Core Database CI Infrastructure

This position is posted by Jobgether on behalf of ClickHouse. We are currently looking for a Senior Software Engineer – Core Database CI Infrastructure in the United States.

This is a unique opportunity to work at the heart of one of the fastest open-source OLAP databases in the world. You will contribute to building and optimizing the CI infrastructure that ensures the high performance, scalability, and reliability of mission-critical distributed systems. From writing and maintaining performance tests to debugging complex system-level issues, you'll be part of a global, remote-first team that thrives on collaboration, technical excellence, and a shared passion for open-source innovation. Expect to work on projects that directly impact customers and the wider developer community.

Accountabilities

• Collaborate with Core Engineering teams to develop and scale the continuous integration (CI) infrastructure for the core database platform.
• Design and implement performance tests to catch regressions, simulate real-world data workloads, and validate new features.
• Analyze and optimize critical components such as distributed queries, relational operators, caching, and SIMD-level optimizations.
• Actively support engineering and support teams by investigating and resolving complex performance issues from customers or community users.
• Engage with the open-source community by reviewing pull requests, answering questions, and supporting contributors across forums and Slack channels.
• Participate in an on-call rotation to address advanced technical issues affecting database performance and stability.
• Closely collaborate with cross-functional teams to assess how changes impact performance, security, and system reliability.

• 5+ years of professional software development experience, with deep expertise in C++ and Linux/Unix environments.
• Strong background in systems programming, performance engineering, and optimizing distributed systems.
• Proven understanding of database internals or experience in other high-performance computing domains (e.g., real-time data, high-frequency trading).
• Experience with debugging and profiling tools in production environments.
• Ability to work autonomously in a distributed team setting and communicate effectively across technical and non-technical stakeholders.
• Open-source contribution experience and a collaborative mindset in peer reviews and community engagement.
• Passion for efficiency, scalability, reliability, and clean code practices.
• Bonus: Experience with ClickHouse, Kubernetes, network programming (TCP/IP), cloud infrastructure, and public technical speaking or blogging.

• Competitive salary based on location and experience
• U.S. General Remote: $133,450—$197,200 USD
• New York / San Francisco: $157,000—$232,000 USD
• Los Angeles / Washington, D.C.: $141,300—$208,800 USD
• Equity: All new team members receive stock options.
• Remote-first flexibility with support for home office setup ($500 allowance).
• Comprehensive healthcare benefits with employer contributions.
• Flexible time off policy and generous vacation entitlement.
• Global team gatherings to foster in-person connection.
• Inclusive, fast-paced, and culture-driven environment with opportunities to shape company values and direction.

Jobgether is a Talent Matching Platform that partners with companies worldwide to efficiently connect top talent with the right opportunities through AI-driven job matching.

When you apply, your profile goes through our AI-powered screening process designed to identify top talent efficiently and fairly.

🔍 Our AI evaluates your CV and LinkedIn profile thoroughly, analyzing your skills, experience and achievements.
📊 It compares your profile to the job’s core requirements and past success factors to determine your match score.
🎯 Based on this analysis, we automatically shortlist the 3 candidates with the highest match to the role.
🧠 When necessary, our human team may perform an additional manual review to ensure no strong profile is missed.

The process is transparent, skills-based, and free of bias — focusing solely on your fit for the role.
Once the shortlist is completed, we share it directly with the company that owns the job opening. The final decision and next steps (such as interviews or additional assessments) are then made by their internal hiring team.

Thank you for your interest!

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