Daniella Cavalheiro

Daniella Monteiro Cavalheiro, B.Ed. www.linkedin.com/in/daniella-monteiro-- Apúlia – Esposende – Braga – Portugal Language & Learning Solutions Specialist Multilingual specialist in language technologies, data annotation, and AI-driven learning solutions, with over 19 years of experience in language education, translation, and large language model evaluation. Skilled in machine learning projects, prompt engineering for personalized language learning, and the integration of AI tools in educational and corporate contexts. Experienced in speech recognition data contribution and cross-functional, multicultural teams, with a strong focus on data quality, ethical AI, and digital innovation. Passionate about research and the development of predictive models to support decision-making and enhance multilingual education through technology. Technical Skills Data Annotation & Quality Rating Content Review & Linguistic Quality Assurance Educational Technology & Digital Learning Tools Natural Language Processing (NLP) Data Analysis & Preprocessing Machine Learning Education and Certifications - Master’s Degree in Digital Humanities – Universidade do Minho (ongoing) Area: Technology (focus on digital methods, data analysis, and computational tools applied to humanities) - Bachelor’s Degree in Linguistics and Modern Languages – Portuguese and English – Unicesumar Specialization: Linguistics, Language Teaching, and Translation - TESOL Certification with an Emphasis in Education Technology – Arizona State University - Postgraduate Specialization in Translation and Interpreting - Pontifícia Universidade Católica de São Paulo Professional Experience Freelance Language Data Annotator & Prompt Rater – Remote Jan 2025 – Current -Annotate and evaluate multilingual prompt-response pairs for LLM training and assessment, focusing on fluency, contextual relevance, and AI safety. - Collect and organize Brazilian Portuguese voice data for speech recognition model training. - Apply strict annotation protocols to ensure high-quality, structured data for machine learning projects. - Collaborate with international teams to resolve rating discrepancies and support ethical AI development. AI Trainer & Proofreader - Various International Projects – Remote Jan 2025 – Current - Support AI training by recording natural language samples and evaluating prompts for accuracy and safety. - Proofread and edit Portuguese content, ensuring linguistic and cultural accuracy for AI applications. - Work with linguists and AI developers to optimize training datasets and localization projects. Educational Content & Learning Solutions Specialist - The Language Company (BR & PT) Jun 2009 – Current - Design and deliver training programs using AI-driven tools to personalize content for diverse audiences. - Develop psychometric assessments and interactive simulations integrating generative AI. - Lead multilingual projects, ensuring quality and scalability using CAT tools and e-learning platforms. Technology Teacher - António Correia de Oliveira School Group Feb 2004 – Jun 2009 - Teach digital skills, critical thinking, creativity, and AI literacy to primary school students. - Develop dynamic methodologies and digital resources for inclusive and engaging learning experiences. Projects & Contributions in AI and Data Science Prompt Engineering for Language Learning Personalization: Prompt engineering to design and optimize AI-driven interactions for personalized language learning experiences. Developed and tested prompts to tailor feedback, content, and assessment in my master’s dissertation project on generative AI in language education. Speech Recognition – Voice Data Contributor: Provided diverse Brazilian Portuguese audio samples for ASR model training, supporting multilingual speech technology development. LLM Data Annotation – Prompt & Response Rater: Evaluated and annotated prompts, translations, and outputs for LLMs, focusing on linguistic quality and AI safety. AI Literacy Education – Content Contributor: Helped create and adapt educational materials introducing AI concepts and ethics for school curricula. Metadata Extraction from Institutional Publications: Automated PDF scraping and metadata structuring (Python) to organize academic journal data for trend analysis. App Prototype: Co-designed a Figma-based app for browsing 17th–18th century wills, enhancing access to historical archives through metadata modeling. Data Structuring | Historical Records | Digital Archive: Developed a database from historical records of Italian immigrants to Brazil. Responsible for cleaning and standardizing data (names, dates, origins, destinations), defining metadata fields, and organizing content into a searchable structure to support historical and cultural heritage research. Sentiment Analysis in Portuguese Media: Analyzed public sentiment in digital media using basic classifiers and textual preprocessing. Educational Website: Built a WordPress site explaining SSI concepts, managing content structure and agile coordination (Jira). Volunteer Experience Localization Specialist – Educational Content - Atuação Global (Brazil, Remote) Feb 2021 – Aug 2021 AECEP – Association of Principled Education for Christian Schools - Developed and localized educational workshop materials in Portuguese and reviewed English versions for the Principle Approach Education program, supporting teacher training and curriculum adaptation for Portuguesespeaking communities in Timor-Leste and Pakistan. - Ensured linguistic accuracy, cultural relevance, and pedagogical clarity in both languages, adapting content to meet the needs of diverse educational contexts. Languages Portuguese: Native Speaker English: Fluent Italian: Advanced Spanish: Intermediate