[Remote] Student Researcher [Seed LLM Horizon – Multi-turn Tool Use] - 2026 Start (PhD)

Note: The job is a remote job and is open to candidates in USA. ByteDance is a leading technology company committed to inspiring creativity and enriching life. They are seeking passionate and self-driven researchers for their Seed LLM Horizon Team to contribute to cutting-edge research in agent intelligence and model development. Responsibilities Enable models to perform deep usage of professional tools (e.g., search, code-interpreter) to solve complex problems Develop approaches to generalize model abilities to millions of out-of-distribution (OOD) tools and scenarios Scale up multi-turn tool-use training tasks and explore effective training methods Address challenges of long-horizon, multi-turn tasks in reinforcement learning Skills Currently pursuing a PhD in Computer Science, Software Engineering, Machine Learning, or a related field Research experience in one or more of the following: reinforcement learning, LLM agents, memory systems, tool use, or interactive learning Strong coding skills and proficiency with modern deep learning frameworks Demonstrated ability to conduct independent research, with publications in top-tier ML/AI conferences such as NeurIPS, ICML, ICLR, ACL, EMNLP etc Experience with long-horizon reasoning, multi-turn tasks, or asynchronous agent behavior Familiarity with agent evaluation, personalization, or real-world tool integration Background in building or analyzing large-scale agent training pipelines Ability to collaborate effectively in a fast-paced, research-driven team environment Benefits Day one access to health insurance Life insurance Wellbeing benefits 10 paid holidays per year Paid sick time (56 hours if hired in first half of year, 40 if hired in second half of year) Housing allowance Company Overview ByteDance is a technology company that develops content creation platforms and services. It was founded in 2012, and is headquartered in Beijing, Beijing, CHN, with a workforce of 10001+ employees. Its website is Company H1B Sponsorship ByteDance has a track record of offering H1B sponsorships, with 1350 in 2025, 1123 in 2024, 775 in 2023, 487 in 2022, 417 in 2021, 245 in 2020. Please note that this does not guarantee sponsorship for this specific role.