Yifan

Software Engineer Intern @TikTok

San Jose, CA, US

Architected NSD (Network Security Director), an AI-enhanced network traffic security framework in Golang.• Integrated LLM-based noise reduction into NTA (Network Traffic Analysis) alert pipeline, achieving >99% alert accuracy and reducing over alerts/hour to actionable cases.• Built a FaaS-based alert processor to consume and forward high-volume Kafka (BMQ) alerts to NSD for analysis.• Implemented Thrift (Kitex) and HTTP (Hertz) APIs to query Elasticsearch for traffic history logs and to verify firewall blocking capability for specific source-to-destination flows.• Developing a LangChain-based API to generate firewall rule recommendations and proactively mitigate threats.