Xiang Ma

Key Skills

Software

Mercor

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Data Collection

Freelancer Overview

I hold a Ph.D. in Organic Chemistry from The Australian National University, one of the world’s top-30 institutions, and completed postdoctoral research at Caltech—widely regarded as a global leader in chemical sciences. My work spans total synthesis of complex natural products, photopharmacology, and peptide-based probe design, culminating in high-profile publications in Nature Methods, JACS, and Organic Letters. Beyond experimental chemistry, I have developed substantial experience in large-language-model training through Mercor, where I design advanced chemistry prompts and detailed evaluation rubrics. As a professional prompt practitioner and rubric designer, I bridge deep chemical expertise with modern AI evaluation, contributing to the creation of high-fidelity datasets for scientific reasoning.

Labeling Experience

Chemistry AI Trainer & Prompt Engineer

MercorTextPrompt Response Writing SFT

, I have developed substantial experience in large-language-model training through Mercor, where I design advanced chemistry prompts and detailed evaluation rubrics. As a professional prompt practitioner and rubric designer, I bridge deep chemical expertise with modern AI evaluation, contributing to the creation of high-fidelity datasets for scientific reasoning.

, I have developed substantial experience in large-language-model training through Mercor, where I design advanced chemistry prompts and detailed evaluation rubrics. As a professional prompt practitioner and rubric designer, I bridge deep chemical expertise with modern AI evaluation, contributing to the creation of high-fidelity datasets for scientific reasoning.

2025

Education

Work History