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TikTok

Short-form video platform with ads

Machine Learning Engineer - AI Agent

AI Application EngineeringConfirmed live in the last 24 hours
Full-timeSan Jose, CA, USAIn-person

About the Job

Requirements

  • A master's degree or higher in Computer Science, Artificial Intelligence, Natural Language Processing, or a related field is required.
  • Hands-on experience with at least one mainstream Agent framework, such as LangGraph, OpenClaw, Hermes, Codex, or Claude Code, is required.
  • A deep understanding of the core principles of Large Language Models and AI Agents is required, including familiarity with mainstream Agent architectures such as ReAct/PlanAct, Multi-Agent systems, Context Engineering, and Memory.
  • A solid AI/ML background and in-depth knowledge of post-training techniques such as SFT and RLHF are required.
  • Strong coding skills, solid data structures and algorithms fundamentals, and proficiency in C/C++ or Python are required.
  • Teamwork, collaboration, and communication skills are required.

Responsibilities

  • Build the core brain of an AI agent for the advertising sales domain and track cutting-edge technologies.
  • Explore mainstream Agent frameworks, monitor advancements in the AI Agent field, and introduce and validate new technologies focused on automated task planning and scheduling, tool invocation, multimodal interaction, and deep research capabilities.
  • Establish an Agent evaluation mechanism for Harness-driven iteration.
  • Develop a Skills toolset for advertising sales and customer acquisition scenarios, building and optimizing reusable, high-performance Skills.
  • Explore Agent automation and self-evolution, enabling the Agent to learn from real-world interaction data and improve its decision-making and execution capabilities.
  • Build stable and reliable Agent infrastructure, including optimizing Agent system performance and stability.

Desired Qualifications

  • Practical experience fine-tuning model capabilities for specific tasks is preferred.

About the Company

TikTok

Short-form video platform with ads

TikTok is a short-form mobile video platform that lets people create, discover, and share quick videos. Users upload vertical clips, edit them with built-in tools, and browse a personalized feed powered by an algorithm that highlights relevant content. Advertisers can use in-feed ads, branded hashtags, and the Business Center to plan and measure campaigns, making it easy for brands to reach a global audience. Its goal is to inspire creativity and bring joy by helping people express themselves and by connecting brands with a wide audience.

Company size
10,001+
Company stage
Grant
Total funding
$740K
Headquarters
Santa Monica, CA
Founded
2016

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