Senior Software Development Engineer - Global E-commerce

The e-commerce industry has seen tremendous growth in recent years and has become a hotly contested space amongst leading internet companies. With millions of loyal users globally, we believe TikTok is an ideal platform to deliver a brand new and better e-commerce experience to our users. Our quality assurance engineering team is responsible for keeping an e-commerce ecosystem stable, secure, and intuitive for our users. We are looking for passionate and talented people to join us as we drive the future of e-commerce here at TikTok.



What You'll Do:

- Build GenAI applications with LLM APIs (OpenAI, Anthropic, Gemini), prompt engineering, RAG (Pinecone/FAISS), and orchestration (LangChain, LlamaIndex, MCP)

- Perform parameter-efficient fine-tuning (LoRa, QLoRa) and integrate AI into production systems

- Follow Responsible AI practices, including bias mitigation and compliance

- Architect and implement software solutions to enhance engineering productivity, including development tools, automation platforms, and distributed data management systems.

- Lead development of mission-critical distributed systems with focus on availability, scalability, and operational excellence in cloud-native environments.

- Collaborate cross-functionally to deliver technical solutions through full lifecycle management - from concept design to production deployment and support.