ByteDance
ByteDance

Research Engineer – Agent Systems & AI Coding Environment (Seed Infra Platform)

RoleMachine Learning
LevelMid Level
LocationSeattle, WA, United States
WorkOn-site
TypeRegular
PostedToday
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About the role

About the Team:

The Seed Infrastructures team oversees the distributed training, reinforcement learning framework, high-performance inference, and heterogeneous hardware compilation technologies for AI foundation models.

Responsibilities:

  • Build agent harness and execution environments for AI coding and knowledge tasks (code execution, tool integration, sandboxing, system interaction)
  • Develop scalable orchestration frameworks for multi-step agent workflows (planning, tool use, memory, coordination)
  • Design evaluation and benchmarking systems to measure agent performance across complex, long-horizon tasks
  • Improve agent performance via prompting, data curation, and post-training in collaboration with model and RL teams
  • Partner with research and product teams to productionize agent systems

Requirements:

  • Minimum Qualifications

  • Bachelor’s degree or above in Computer Science or a related field

  • Strong programming skills (Python or similar) and solid system-building experience

  • Experience with LLM-based systems, pipelines, or tool-integrated workflows

  • Understanding of system design and building scalable infrastructure

  • Experience building agent harness / runtime systems or AI coding environments

  • Experience with Docker, Kubernetes or similar orchestration systems, distributed job execution, and containerized/sandboxed code execution environments

  • Preferred Qualifications

  • Familiarity with evaluation frameworks, prompting / finetuning / RL, or large-scale experimentation

Required skills

Machine learning

Model evaluation

Data workflows

About ByteDance

Seattle

Headquarters