Angela Sofía Barajas Ochoa

Graduated in Physics, highly passionate about AI and data science. My sense of responsibility, critical thinking, and analysis are some of my best qualities. With three years of experience as an AI Data Trainer at Invisible Technologies and Fyxer AI, I have gained valuable expertise in data annotation and model evaluation, so I would be eager to continue contributing to advancements in AI.

Advanced Data Annotator at Fyxer AI (2025 - 2026)

Utilized advanced techniques in data annotation and classification to create robust datasets that significantly enhanced the efficiency and effectiveness of LLM training processes.

Advanced AI Data Trainer at Invisible Technologies (2022 - 2024)

Executed data training campaigns for large language models (LLMs), focusing on enhancing model performance through Reinforcement Learning from Human Feedback (RLHF). Developed and curated high-quality training datasets, ensuring data integrity and relevance to improve the accuracy and reliability of AI models.

Academic tutor at Industrial University of Santander (2020 – 2022)

As a university tutor, I provided academic support in calculus, algebra, and physics. I assisted students in understanding complex concepts, problem-solving, and exam preparation. My role involved fostering subject-specific expertise and study strategies to help students excel in these disciplines.

Social media manager at Halley UIS group (2022 – 2022)

Management of social media of the astronomy research group Halley at Industrial University of Santander. In charge of making, publishing, and publicizing posters for the group's weekly events.

Bachelor's in Physics – Industrial University of Santander (2020 – 2025)

Language Certification in English – Colombo Americano Institute (2013 – 2017)

Technician in Accounting of commercial and financial operations – SENA (2018 – 2018)

Commercial Technical High School Graduate in Commercial Technical – Divino Amor School (2018 – 2018)