Principal Software Engineer, ClickHouse
Postgres
+ Equity
Open-source database for real-time apps & analytics
Be an early applicant
Open-source database for real-time apps & analytics
501-1000 employees
Be an early applicant
+ Equity
501-1000 employees
Company mission
To allow users to generate analytical reports using SQL queries in real-time.
Role
Who you are
- 10+ years of experience building systems software in C/C++ or Rust (Go experience a plus)
- Deep knowledge of PostgreSQL or other database engine internals, including storage, execution, or replication subsystems
- Strong understanding of concurrency, operating systems, and performance engineering
- Proven ability to ship large-scale systems or core infrastructure features end-to-end
- Experience contributing to open-source databases or similar complex systems is highly desirable
- Pragmatic problem solver with a bias for simplicity and measurable impact
- Thrives in a high-autonomy, high-velocity environment
What the job involves
- We’re looking for a Principal Engineer with deep expertise in systems programming and database internals — particularly Postgres — to help us push boundaries in how databases are built and operated at scale
- This is a strategic and high-impact role for an engineer who can work independently across complex technical areas: from storage and performance optimization to distributed coordination and extension development
- You’ll shape critical components of our data platform, mentor other engineers, and drive architectural direction for systems that serve massive workloads
- Lead design and implementation of advanced systems features across areas like storage, replication, query execution, and performance optimization
- Contribute to and extend Postgres internals — improving reliability, scalability, and efficiency
- Prototype and build extensions that expand Postgres’s core capabilities and integrate with cloud-native infrastructure
- Collaborate with product, infrastructure, and cloud platform teams to deliver robust, developer-friendly experiences
- Profile and optimize database performance using low-level instrumentation and benchmarking
- Provide technical leadership, set standards for engineering excellence, and mentor senior engineers
- Operate with significant autonomy and ownership — driving projects from concept to production
Our take
Database management systems have long been important to the operations of businesses. However, these systems can be painfully slow. ClickHouse solves this problem with its ultra-fast database management system, that powers real-time analytics and apps.
ClickHouse's founding team hail from companies including Yahoo!, Netflix, Salesforce and Google. This has not only lent the company an impressive amount of credibility, but has also allowed it to identify the needs and challenges of enterprises when it comes to their databases. Its system works between 100 and 1,000 times faster than traditional options, and has led to the company being trusted by the likes of eBay, Uber and Spotify.
It has seen substantial funding and acquired LibreChat, an open-source AI chat platform, allowing it to launch its Agentic Data Stack. This move positions the company at the forefront of agentic analytics, allowing organizations to interact with massive datasets through AI agents, and demonstrates ClickHouses's commitment to shaping the future of real-time, intelligent data analysis.
Freddie
Company Specialist at Welcome to the Jungle
Company
Funding (last 2 of 4 rounds)
Jan 2026
$400m
LATE VC
May 2025
$350m
SERIES C
Total funding: $1.1bn
Company benefits
- Flexible work environment - ClickHouse is a globally distributed company and remote-friendly. We currently operate in 20 countries
- 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 – We believe in the power of in-person connection and offer opportunities to engage with colleagues at company-wide offsites
Company HQ
Old Palo Alto, Palo Alto, CA
Leadership
Aaron Katz
(Co-Founder & CEO)Prior to ClickHouse, Aaron spent 6 years at Elastic as CRO and Strategic Advisor. He also spent 12 years at salesforce, joining as a Regional VP of Sales before working through various roles to become the Senior VP of Enterprise Sales.
Yury Izrailevsky
(Co-Founder & President)Previously, Yury spent 3 years at Google as a VP of Engineering, 8 years at Netflix as a Director of Cloud and Systems Infrastructure and VP of CLoud Computing and Platform Engineering, and 8 years at Yahoo! as a Manager of Yahoo Data Warehouse and Director of Engineering.
Alexey Milovidov
(Co-Founder & CTO)Prior to becoming CTO in 2021, Alexey was the Head of CLickHouse and Yandex for over 13 years.
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