Felipe Arruda
AI Trainer | STEM Specialist
About
Detail-oriented Mechanical Engineering Undergraduate with a strong foundation in STEM and Software Development. Proven ability to handle complex data analysis, engineering design, and technical troubleshooting. Experienced in adhering to strict safety regulations (Formula SAE) and proficient in Web Development technologies (JavaScript, HTML, CSS). Seeking to leverage proven experience in data annotation along with analytical skills and coding knowledge to excel as an AI Trainer and Technical Annotator.
Skills & Expertise (16)
Work Experience
Technical Analyst & Researcher
Universidade Federal do Piauí
Jan 2022 - Present
Conducted data analysis of mechanical vibrations, applying mathematical modeling to accurately predict system behavior. Authored comprehensive technical reports and research documentation following strict ABNT standards.
AI Content Evaluator & Prompt Engineer
Alignerr
Apr 2026 - May 2026
Engineered complex, domain-specific prompts to rigorously test and benchmark anonymous, state-of-the-art Large Language Models (LLMs). Conducted multi-turn conversational evaluations to analyze model capabilities, tracking performance variations and identifying logical bottlenecks. Evaluated side-by-side model outputs on final turns, applying preference criteria and tagging behavioral or technical weaknesses. Collaborated with AI automated grading systems to refine prompt difficulty, ensuring high-quality dataset creation for RLHF.
AI Specialist & Transcriber
Sigma AI
Mar 2026 - May 2026
Executed high-quality audio transcription and linguistic data annotation tasks to train and optimize advanced Machine Learning and AI models. Performed meticulous data verification, quality assurance (QA), and text refinement, ensuring strict compliance with complex project-specific guidelines. Documented linguistic edge cases and technical feedback to support the continuous improvement of speech recognition and natural language processing (NLP) systems.
Brake System Designer
Formula SAE Bull Racing Team (UFPI)
Nov 2021 - Nov 2023
Designed and optimized brake systems for competitive racing vehicles, applying advanced engineering principles. Ensured strict adherence to technical and safety regulatory guidelines required by the Formula SAE competition. Enhanced system efficiency and safety through rigorous testing, mathematical analysis, and multidisciplinary teamwork under tight deadlines.
Education
Bachelor’s Degree - Universidade Federal do Piauí
2021 - · Afghanistan
Certifications
Formula SAE Competition Participation Certificate
· 2022
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Skills (16)
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