Hire Ruijie M. - Generative AI Engineer

Contributed to implementation of AI agent based call center that receive and make over 20k calls daily. ----Drive the efforts to improve the RaG accuracy by reranking and query rewriting.

* Built End to End GenAI based Genshin Impact Toy that allow users to chat and interact, and deploy the backend scalably on AWS to serve over 6000 users. * Finetuned open-source LLMs using 500 kb datasets to match OpenAI's performance in role playing task. * Implemented AI Agent capable of role playing through LangGraph to process over millions of tokens of knowledge base and improved accuracy by Query-Rewrite and Sematic Chunking. * Implemented the entire backend system including ASR System, TTS System and optimized the latency of the whole flow from 12s to 3s by applying technology such as Cached RaG, PipeRAG and Streaming. * Implemented full feedback loop for the character and enable them to interact with other characters to perform a short play. * Pitched our project to investors and raise $1 million dollars as angel investment.

* Cofounded an AI based music composing platform that allows zero music background users to compose music and MIDI through prompts. * Led the efforts to implement plugins that generates or improves single-tracked songs through GenAI. * Trained and adjusted audio generation model that shortened vocal generation time and training epochs needed by about 15%. * Grew tuneflow’s daily active user by nearly 400% in three months and received universal positive reviews on discord.