Senior Software Development Engineer - Data
TikTok
San Jose, CA · Posted November 13, 2026
Just laid off? Start here: a plan for the first weeks
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How AI is used in this kind of work
Among software developers, AI is already used for some of the tasks. Measured exposure for software developers: 29% (some).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
TikTok has filed one layoff notice in the last twelve months, covering 250 workers, most recently August 2026. These are public filings with state labor departments, and an open role can sit alongside them. See the filings
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About the job
Team Introduction The Data Platform team works on building data infrastructures and data products to support business engineering teams at TikTok.
As a Software Development Engineer in the data platform team, you will have the opportunity to build, optimize and grow one of the largest data platforms in the world. You'll have the opportunity to gain hands-on experience on all kinds of systems in the data platform ecosystem. Your work will have a direct and huge impact on the company's core products as well as hundreds of millions of users.
Responsibilities - What You'll Do • Design and build data transformations efficiently and reliably for different purposes (e.g. reporting, growth analysis, multi-dimensional analysis) • Design and implement reliable, scalable, robust and extensible big data systems that support core products and business • Establish solid design and best engineering practice for engineers as well as non-technical people.
Minimum Qualification • BS/MS from a quantitative field of study (CS, STEM, etc) • Experience in API, backend, and data services development • Experience in Big Data stack(Hadoop, M/R, Hive, Spark, Metastore, Presto, Flume, Kafka, ClickHouse, Flink etc.) • Experience with ETL (Extraction, Transformation & Loading) or ELT, and architecting data systems • Ability to ship code in Java, Python and SQL • Solid communication and collaboration skills