Software Engineer, Data Engine

Responsibilities 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. Team Introduction The Data Engine team horizontally supports various core business lines within TikTok, as well as external enterprise customers through Volcano Engine. It focuses on solving big data architecture challenges for a 10EB level data set to create an industry-leading big data infrastructure. In addition, the team provides cloud-native real-time data lake and data warehouse services to business customers through its LAS (LakeHouse Analytics Service) product. As part of the Data Engine team, you will have the opportunity to collaborate with an intelligently strong and fun team to build the industry-leading big data infrastructure and architecture, dive deep into source code optimizations of major big data systems, and represent the company at top-level conferences in the big data field to share the team's technical milestones and achievements. Responsibilities - Build the industry-leading 10 EB-level big data platform that supports core products and businesses - Optimize and enhance big data system kernels, Spark SQL, Presto, Flink, Hive, HUDI etc. - Build the long-term competitive advantage of the data engine Qualifications - Familiar with principles and source code of one or more mainstream big data systems such as Spark, Presto, Flink hive and HUDI - Familiar with data lake technologies including Iceberg, HUDI and DeltaLake - Ability to diagnose failures and optimize performance in large-scale systems - Committers in major database projects (Spark, Flink, HUDI, Iceberg, Presto, StarRocks, Kafka, Calcite, etc) preferred 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. TikTok is committed to providing reasonable accommodations in our recruitment processes for candidates with disabilities, pregnancy, sincerely held religious beliefs or other reasons protected by applicable laws. If you need assistance or a reasonable accommodation, please reach out to us at dataecommerce.accommodationstiktok.com.