Thayná Bielca

Taught geography to students aged 15 to 73 years old for 2 years. Developed and delivered engaging lessons, fostering a deep understanding of human and cultural geography.

Contributed to AI training and data annotation projects, specializing in refining Large Language Models (LLMs) through prompt engineering, linguistic QA, rewriting, factuality evaluation, and safety testing. Served on a specialized Rewriting Team, restructuring and enhancing LLM outputs to improve fluency, coherence, factual accuracy, and tone control.

Contributed to speech data pipelines by transcribing audio in Brazilian Portuguese and labeling acoustic and linguistic features to enhance the speech understanding capabilities of LLMs and ASR systems. Completed translation, evaluation, and localization tasks between Portuguese and Spanish, ensuring semantic fidelity and cultural appropriateness.

Participated in various AI training and data annotation projects, with a strong focus on cultural relevance across tasks. Performed side-by-side evaluations comparing LLM outputs to determine quality based on completeness, clarity, truthfulness, task fit, ethical compliance, and cultural relevance.

Provided freelance translation services between Portuguese and Spanish for over 5 years. Ensured semantic fidelity, linguistic fluency, and cultural appropriateness in all translated materials.

Obtained a Bachelor's Degree in Geography from UNESP, with a focus on human and cultural geography. Participated in several projects involving geoprocessing using ArcGIS and QGIS.