Research Engineer Intern (Agentic Systems & AI Infrastructure)

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TikTok

Inspire creativity, bring joy.

10,001+ employeesLos Angeles, CaliforniaEntertainment Providers
Actively hiringPaidEntertainment Providers
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Best applied by Nov 14

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About the role#

The Agentic Arch team builds AI-native engineering infrastructure to change how software is designed, built, and operated at the scale of TikTok. We research and deploy reliable long-horizon agents that reason over large codebases, interact with complex tools, and complete engineering tasks across distributed production systems. This role offers an opportunity to advance agent research through real-world execution feedback.

What you'll do#

  • Develop and evaluate frontier methods for AI agents.
  • Bring methods into production using platforms that operate at large scale.
  • Formulate ambiguous real-world problems and design rigorous experiments to test your ideas.
  • Analyze results and iterate based on evidence.
  • Collaborate across research, infrastructure, platform, and product teams to create measurable improvements in engineering productivity and software quality.

What you'll need#

  • Currently pursuing or recently completed a PhD in Computer Science or a related field.
  • Research or engineering experience in AI agents, machine learning, natural language processing, distributed systems, or programming languages.
  • Proficiency in Python, C++, Go, or Java.
  • Understanding of agent planning, model post-training, reinforcement learning, memory systems, or agent evaluation.
  • Ability to translate research into production impact.
  • Experience with large codebases, CI/CD, or distributed systems is preferred.
  • Evidence of research excellence through publications, open-source work, or deployed systems.

Location & details#

  • This role is based in San Jose, California.
  • The position is on-site and full-time.
  • Applications are reviewed on a rolling basis.
  • Compensation is $60 per hour.
  • Sponsorship is not provided for this position.
Relevant fieldsComputer Science

About TikTok

TikTok operates as an entertainment provider. The company maintains a global presence with offices in cities including Los Angeles, Singapore, New York, London, and Tokyo. It employs over 92,000 people. The organization is privately held.

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