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# Principal Database Performance Engineer - Core Engineering (C++)

- **Company:** Clickhouse
- **Location:** Germany (Remote available)
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** C++ (Programming Language), Cloud Database, Databases, Data Structures, Distributed Systems, Memory Management, System Programming, Database Performance, Vertica
- **Published:** September 17, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=0a22f01cafebc6c8

## About the Role

* 5+ years of experience in database performance engineering, distributed systems
 * Master or PhD in databases or a related field
 * Strong fluency in C++ and a background in performance-critical software or systems programming
 * A track record of driving complex performance improvements end-to-end
 * Deep understanding of computer science fundamentals, data structures, and algorithms
 * Excellent communication and leadership skills, with a proactive, goal-driven mindset

## Description

ClickHouse is looking for a Principal Database Performance Engineer to join the team behind our high-performance analytics database service.
In this role, you will drive performance and scalability improvements across the stack, taking on ambiguous, high-impact technical challenges most engineers never get to touch.
Our performance team owns the core of query execution - filters, aggregation, joins, and the index structures that make them fast.
We're looking for a sharp, passionate engineer who wants to own database performance end-to-end on a petabyte-scale cloud database, from initial analysis and implementation, through production rollout.

What you will do:

 * Identify impactful performance and scalability opportunities in customer or benchmark workloads
 * Architect and implement optimized database algorithms and data structures across core relational operators, indexes, query processing, memory management and scheduling
 * Drive the performance roadmap for latency, throughput, memory efficiency and hardware utilization improvements
 * Participate in the development of a complex, high-performance database system, including meticulous testing and safe production rollout
 * Represent the company externally through presentations, blog posts, and community contributions
 * Mentor and support junior engineers on the team