Machine Learning Engineer Intern (E-Commerce Supply Chain & Logistics-LLM/Agent) - 2027 Start (PhD)

TikTok; Seattle (WA); On-site; USD 22,000 - 36,000; Part time

Job summary

TikTok, in Seattle, invites PhD students to join as a Machine Learning Engineer Intern focused on E-commerce Supply Chain & Logistics. The role emphasizes LLMs, agents, and retrieval systems applied to complex logistics problems at global scale.

Interns will contribute to AI-native capabilities, exploring reinforcement learning, workflow automation, and evaluation frameworks within the TikTok logistics program.

Qualifications

• Pursuing PhD in AI/CS/OR/automation/stats or related.
• Experience with LLMs, agents, RAG, tool use, post-training, evaluation or NLP.
• Strong Python; familiar with Java/C++/Go/TypeScript.
• Familiar with ML/DL frameworks like PyTorch, TensorFlow or JAX.

Responsibilities

• Apply LLMs, agents, RL and retrieval systems to real logistics problems at global scale.
• Contribute to AI-native capabilities within the E-commerce Global Supply Chain & Logistics team.

Skills

PhD candidate

LLMs & agents

Python

Java/C++/Go/TS

ML frameworks

Education

PhD degree in related field

Tools

LangChain

Hugging Face

vLLM

Job description

Discover a career that energizes and excites you every day.

@2026 TikTok

Technology

Machine Learning Engineer Intern (E-Commerce Supply Chain & Logistics-LLM/Agent) - 2027 Start (PhD)

Location:

Seattle

Employment Type:

Intern

Job Code:

A78529B

Qualifications

Minimum Qualifications:-

• Currently pursuing a PhD degree in artificial intelligence, computer science, operations research, automation, statistics, mathematics, or a related discipline
• Experience with LLMs, agents, RAG, tool use, post-training, evaluation, or applied NLP systems
• Strong programming ability in Python and familiarity with at least one production-oriented language such as Java, C++, Go, or TypeScript
• Familiarity with machine learning and deep learning frameworks such as PyTorch, TensorFlow, JAX, vLLM, Hugging Face, LangChain, LlamaIndex, or similar ecosystems

Preferred Qualifications:-

• Research or project experience in coding agents, long-horizon agents, computer-use agents, agent harnesses, workflow orchestration, or automated evaluation systems
• Experience with LLM post-training, including SFT, DPO, PPO, GRPO, RLHF, RLAIF, reward modeling, counterfactual data, or evidence-driven decision training
• Experience building benchmarks or evaluation datasets from real user questions, including taxonomy design, golden answers, error attribution, and regression testing
• Experience with e-commerce, logistics, operations research, data platforms, knowledge graphs, or enterprise knowledge management systems
• Published papers, strong open-source contributions, or hands‑on projects in LLMs, agents, NLP, data mining, machine learning systems, evaluation, or AI engineering

Join the E-commerce Global Supply Chain and Logistics team at TikTok. We are building AI-native capabilities for global logistics, including logistics agents, address intelligence, context engineering, agent evaluation, and workflow automation for complex supply chain operations. This role is for candidates who want to apply LLMs, agents, reinforcement learning, retrieval systems, and software engineering to real logistics problems at global scale. We are looking for talented individuals to join us for an internship. PhD internships at Our Company provide students with the opportunity to actively contribute to our products and research, as well as to the organization's