Tech Lead (Distributed Database), Data Platform

About TikTok
TikTok is the leading destination for short-form mobile video. Our mission is to inspire creativity and bring joy. TikTok has global offices including Los Angeles, New York, London, Paris, Berlin, Dubai, Singapore, Jakarta, Seoul, and Tokyo.

Why Join Us
Creation is the core of TikTok's purpose. Our platform is built to help imaginations thrive. This is doubly true of the teams that make TikTok possible.
Together, we inspire creativity and bring joy - a mission we all believe in and aim towards achieving every day.
To us, every challenge, no matter how difficult, is an opportunity; to learn, to innovate, and to grow as one team. Status quo? Never. Courage? Always.
At TikTok, we create together and grow together. That's how we drive impact - for ourselves, our company, and the communities we serve.
Join us.

About the team
Tiktok and affiliates are developing the next-generation high-performance analytical database, with a mission to enable efficient and real-time data-driven decision-making on PB-level data sets. The initial product was forked from Clickhouse, after which large re-architecture had been taken place. The product now not only improves the efficiency of Clickhouse but also fits into the elastic cloud-native infrastructure with better scalability and resource utilization. With years of polishment in the internal EB-level scenarios, we are now ready to serve our business partners via various cloud vendors.

What you will be doing:
You will be contributing directly to the database engine, including but not limited to storage, query execution, metadata management, resource management, and performance optimization. By joining this team, you can look forward to a great opportunity to solve hard problems and grow.

- Contribute to the database engine, by leading technical design, implementation, and verification
- Ensure code quality, extensibility, and sustainability within the module/project
- Being hands-on to solve hard problems as well as creating an opportunity for junior engineers to grow
- Support your team by creating a transparent, open, and creative culture
- Oversee the acquisition and development of software systems in organisational units.
- Monitor the results and quality of the different software solutions and projects implemented in the organisation.
- Oversee the development of Proof-of-Concept/ solutionsand provide technical expertise on the development of software and platform features, ensuring that appropriate security and risk factors are considered.- Possess a Bachelor or Master Degree in Computer Science or related field
- At least 5 years of backend experience with at least 1 year of tech leadership experience
- Expert with Linux operating system principles, networking, and multi-threading
- Expert in software development skills in modern C++
- Expert in working on one or more of these technologies is a plus: ClickHouse, Apache Impala, Prestodb, Trino, Apache Doris, PostgreSQL, MySQL, Greenplum
- Contributor/Committer or PMC of the open-source community is a plus

TikTok is committed to creating an inclusive space where employees are valued for their skills, experiences, and unique perspectives. Our platform connects people from across the globe and so does our workplace. At TikTok, our mission is to inspire creativity and bring joy. To achieve that goal, we are committed to celebrating our diverse voices and to creating an environment that reflects the many communities we reach. We are passionate about this and hope you are too.