ByteDance
Tech Lead, Research Scientist/Engineer - AI Infrastructure
San Jose, California · Full-time · Posted Oct 28, 2026
- Education
- Completing or recently completed a PhD in a stated technical discipline; related disciplines are accepted. Cognitive science, computational neuroscience, or psychology backgrounds are welcome when paired with strong systems fundamentals.
About the job
Designs and researches scalable AI infrastructure architectures across compute, software, hardware, energy, data, and applications for large-scale training, reinforcement learning, and inference workloads.
What you'll do
- Design and evaluate end-to-end AI factory architectures, including technical trade-offs involving silicon, software, energy, and supply chains.
- Explore emerging AI systems, distributed training, hardware acceleration, and AI memory; build prototypes and share findings in technical reports.
- Benchmark and optimize performance across the ML stack, and coordinate solutions with research, engineering, hardware, data-center, and product teams.
What they ask for
- Completing or recently completed a PhD in Computer Science, Computer Engineering, Electrical Engineering, or a related technical discipline; backgrounds in cognitive science, computational neuroscience, or psychology are also welcome with strong systems fundamentals.
- Experience in distributed systems, infrastructure engineering, or ML systems, including exposure to large-scale training or RL pipelines.
- Strong proficiency integrating AI tools into knowledge discovery and research workflows.
- Ability to learn quickly and communicate effectively across teams.
Nice to have
- Experience with large-scale model training and inference, heterogeneous compute, training clusters, or high-performance networking.
- Familiarity with AI memory systems, retrieval-augmented architectures, chip design, data-center energy and cooling, or AI hardware supply chains; publications or open-source contributions.
Tools
RDMA, NCCL, KV cache
AI focus
Research and development of AI infrastructure for training, RL, inference, and long-horizon agent memory and reasoning; integrates AI tools into research workflows.
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