Pengcheng Z.

Key Skills

Software

Internal/Proprietary Tooling

Top Subject Matter

Technology — LLM evaluation, prompt testing, and training data QA

Energy & Materials — Technical documentation review (photovoltaic / engineering)

Software & SaaS — Structured data validation and content classification

Top Data Types

Text

Top Task Types

Classification

Freelancer Overview

Compared LLM outputs to defined rubrics for factual accuracy, relevance, and safety. Identified and logged issues such as hallucinations, off-topic responses, and policy risks; summarized patterns to inform prompt and dataset refinements. Followed evaluation guidelines closely and applied scoring criteria consistently across review batches.

Education

Work History