Backend Engineer Intern (TikTok Recommendation Architecture, Content Intelligence) - 2026 Start[...]

We are looking for talented individuals to join us for an internship starting from September 2025 onwards. Successful candidates must be able to commit to at least a 3‑month internship period.

Responsibilities

Participate in content understanding training and inference architecture design to improve the development efficiency, performance, scalability, and stability of the system.

Build a highly available and low‑latency content understanding inference architecture to support online and offline training and inference of TikTok's massive content.

Analyze the performance of training and inference architectures, and optimize the efficiency of large model (LLMs) training and inference on GPU‑based systems.

Track cutting‑edge technologies and applications within the industry, drive the upgrade of the team's technical architecture, and continuously expand application scenarios for content understanding.

Collaborate with colleagues to se...