Model Infra Engineer Intern (TikTok Recommendation Architecture) - 2026 Start (BS/MS)

Build and optimize TikTok recommendation infrastructure for stable, high-quality user experiences. As an intern, you’ll improve model performance and GPU memory efficiency, collaborate with research and infrastructure teams to deploy high-throughput training and inference pipelines, and develop tools/libraries that accelerate deep learning workloads at scale. You’ll also analyze system performance through GPU profiling, kernel analysis, and throughput tuning.