Arthur S.

Hi! I'm a Computational Linguist with a PhD in Experimental Linguistics and over 8 years of experience helping companies build, evaluate, and improve AI-powered language technologies. I specialize in NLP, Large Language Models (LLMs), Conversational AI, Automatic Speech Recognition (ASR), Text-to-Speech (TTS), and Natural Language Understanding (NLU). Throughout my career, I've collaborated with global technology companies to design linguistic resources, evaluate AI systems, improve model performance, develop conversation flows, create annotation guidelines, and perform quality assurance for language technologies. My academic research focused on the phonetics and phonology of Brazilian Portuguese, giving me deep expertise in speech and language. Combined with years of industry experience, I bridge the gap between linguistic theory and practical AI applications. I can help you with: • LLM evaluation and benchmarking • Prompt engineering and prompt evaluation • AI agent and conversational flow design • NLP data annotation and quality assurance • Speech data (ASR/TTS) collection, evaluation, and analysis • Brazilian Portuguese localization and linguistic validation • Linguistic data creation and annotation guidelines • NLP research and linguistic consulting Whether you're training AI models, evaluating LLM outputs, building voice assistants, or improving multilingual language systems, I bring both technical expertise and a linguist's attention to detail. Let's build better AI together.