2-paragraph first-person bio, friendly tone

Zheng Liu

2-paragraph first-person bio, friendly tone

Available to hire

2-paragraph first-person bio, friendly tone

Experience Level

Expert
Expert
Expert
Expert
Expert
Intermediate

Language

English
Advanced

Work Experience

AI Developer (Intern) at Narrates Limited
March 1, 2019 - March 1, 2019
Assisted on RAG prototypes using LLMs and vector DBs for context-aware internal search.
Automation Engineer / NLP Specialist at Narrates Limited
May 1, 2022 - May 1, 2022
Built automations for ingestion, retrieval, and inference; cut manual effort and latency. Tuned prompts and retrieval logic to boost recall and precision.
Senior ML Engineer at Digital Hero
October 1, 2022 - October 27, 2025
Built RAG pipelines with LLMs + vector DBs (FAISS/Pinecone) and hybrid retrieval/ reranking; improved accuracy and grounding. Orchestrated eight workflows for ingestion/embeddings/retrieval/inference with retrievers/alerts, reducing manual ops and latency. Shipped NLP features (NER, intent, summarization) and tuned prompts/queries to boost recall and precision.
AI Developer at Bilby
October 1, 2022 - October 27, 2025
Shipped RAG pipelines with LLMs + vector DBs, improving contextual retrieval and accuracy.

Education

Bachelor of Science in Computer Science (Machine Learning Concentration) at HKCT Institute of Higher Education
September 1, 2016 - August 1, 2019

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Media & Entertainment, Other