Server C++ Engineer (Security & Distributed Systems)

ClickHouse is one of the world’s leading open-source analytic databases, and Altinity is the home of ClickHouse experts who build real-time data solutions that run anywhere.

Altinity is looking for a strong server internals engineer to help develop ClickHouse and maintain its security, reliability, and performance. As a Server Engineer, you will design, implement, and support features across storage, query processing, distributed execution, authentication, and cloud integration. You will also contribute to Altinity’s active development roadmap, which may include work on making data lake catalogs work naturally with ClickHouse, improving performance on cloud object storage, or evolving stateless distributed query execution. Alongside new development, you will help to deliver secure, carefully tested releases for demanding production environments.

Security is an important part of this role. You will help identify, analyze, validate, and resolve vulnerabilities affecting ClickHouse and its dependencies. You will work closely with Altinity engineering teams, customers, and the open-source community to ensure issues are understood and addressed quickly and correctly.

Our ideal candidate has:

• Proven experience in design, implementation, and testing high-performance DBMS features in a complex C++ codebase.
• Excellent background in database internals including query languages, access methods, storage, and/or connectivity
• Demonstrated ability to read and write good C++
• Good understanding of networking and I/O on Linux
• Ability to assess the applicability and severity of newly disclosed vulnerabilities in large software systems and their dependency chains
• Experience reproducing security issues, performing root cause analysis, and developing robust, testable fixes
• Familiarity with common vulnerability classes including memory corruption, denial of service, privilege escalation, authentication bypass, injection vulnerabilities, and information disclosure
• Familiarity with CVSS scoring, threat modeling, and security risk assessment
• Understanding of software supply chain security and dependency risk management
• Ability to independently investigate ambiguous technical problems and make sound engineering decisions
• Strong written communication skills, including the ability to document vulnerabilities, mitigations, and security recommendations clearly
• Familiar with performance optimization techniques and tools
• History of getting pull requests vetted and merged in rapidly evolving open-source projects
• Sound knowledge of database testing, debugging, and low-level performance optimization
• Enthusiasm to learn more about database technology and data-related applications
• Good English language reading and writing skills
• Eager to work with a friendly, distributed team following open-source dev practices
• MAJOR PLUS: Previous experience with ClickHouse development and vulnerability management processes

A day in your life as a ClickHouse server engineer may include any or all of the following:

• Write good task-specific C++ code and solidify it with tests
• Debug issues reported by users, fix them and add tests to make sure they won’t happen again
• Profile existing code and make it faster (either by applying clever algorithms, adding vectorized intrinsics, or by implementing cool tricks), add performance tests
• Submit your own pull requests and review pull requests from others
• Help the Support Team investigate customer problems running ClickHouse
• Help new community members contribute to ClickHouse
• Attend meetups and make presentations on open-source development
• Write blog articles and share information about ClickHouse

Our Benefits:

• Work from Anywhere, Anytime: We are not your typical nine-to-five shop! Enjoy the flexibility of working from literally wherever and whenever. Create a schedule that works for you and your family or lifestyle. Recharge your batteries with our open vacation policies.
• Cultural Diversity: We love that we get to work with passionate people from around the world. Currently, our team is made of professionals from 25 different countries!
• Career Development: We provide opportunities to learn new technologies as well as try out new roles. We also offer access to training on leading-edge technologies, plus flexible work schedules for external education.
• USA Employees Benefits: We offer comprehensive PPO health care plans for our US-based employees that are incredibly flexible to meet the needs of individuals or families. 401K with company match also available.
• Company Travel: We come together in person two to three times per year in locations across the globe.
  We also fund travel to conferences and encourage presentations as well as contributions to open-source communities.

This is a full-time position and includes equity in the company.
Altinity is venture-funded and financially stable.
We are 100% remote. You may work anywhere you have work permits. 

Check out our many other benefits including flexible work hours, career development, and open vacation policies.

We are eager to meet you!