AI software Engineer Project Intern (Transaction Platform) - 2026 Start (BS/MS)

TikTok is the leading destination for short-form mobile video, and they are seeking an AI Software Engineer Project Intern to contribute to their AI infrastructure and developer platform. This role offers the opportunity to engage in impactful projects and gain practical skills in a fast-paced environment.

What you'll do:

• Contribute to AI infrastructure and platform development that supports internal engineering use cases at scale
• Build and improve knowledge base capabilities, including document ingestion, indexing, retrieval, and RAG-style pipelines
• Develop and refine AI Skills, including modular agent capabilities and reusable tool integrations
• Help optimize the experience of the unified AI Coding platform for engineering users
• Support public infrastructure work related to AI-native developer tooling, platform workflows, and internal integration patterns
• Collaborate with engineers across backend, frontend, and platform domains to prototype, test, and iterate on developer-facing AI systems
• Assist with evaluating system quality, reliability, and usability of AI platform components

What they're looking for:

• Currently pursuing Undergraduate/Master in Computer Science or a related technical field
• Solid programming skills and software engineering fundamentals
• Hands-on experience with one or more areas related to AI systems, such as information retrieval, LLM applications, agents, RAG pipelines, or developer tools
• Familiarity with backend and/or frontend development in modern engineering environments
• Ability to work on infrastructure or platform problems with attention to reliability, maintainability, and developer experience
• Strong problem-solving skills and clear written/verbal communication
• Experience with knowledge base systems, document processing pipelines, search, or retrieval infrastructure
• Experience building internal tools, developer platforms, or productivity tooling
• Familiarity with Java and/or React
• Familiarity with engineering workflows and tools such as GitLab, CI/CD systems, or project management platforms such as Meego
• Experience with evaluation, debugging, or operational improvement of AI-assisted workflows

Benefits:

• Interns have day one access to health insurance
• Interns have day one access to life insurance
• Interns have day one access to wellbeing benefits and more.
• Interns also receive 10 paid holidays per year
• Paid sick time (56 hours if hired in first half of year, 40 if hired in second half of year)
• Interns who are not working 100% remote may also be eligible for housing allowance