CECristopher Corral Escobar
@cristophercorralesco
AI data curation leader and localization strategist.
MexicoWhat I'm looking for
I am an AI data curation leader and localization strategist with hands-on experience managing RLHF, SFT, TTS evaluation, safety, and multilingual localization projects for Big Tech clients. I drive measurable quality improvements—raising PDR scores from 3.44 to 3.81—while leading and mentoring global teams and creating clear documentation and training that elevate team performance.
I also work as a freelance AI data annotator and translator, localizing prompts into culturally aware Mexican Spanish and performing high-standard QA and red-team safety testing. I combine instructional design, operations management, and practical tools (Google Workspace, Canva, video editing) to deliver reliable, scalable workflows and strong cross-cultural outcomes.
Experience
Work history, roles, and key accomplishments
ON• Specialized in localizing English prompts into culturally aware Mexican Spanish, creating authentic prompts and responses for Supervised Fine-Tuning (SFT) datasets across different types of data: classification, summarization, and Q&A.
• Translated different pieces of documents (education, entertainment, historical, etc.) delivering error free work.
Reviewed and audited AI-generated responses, localized prompts into Mexican Spanish, and served in trusted roles (Red Team, Reviewer, Oracle) to ensure high-quality annotations and safety testing.
OAManaged AI data annotation projects (Safety, RLHF, SFT, TTS evaluation, localization) and improved PDR score from 3.44 to 3.81 while leading and mentoring 15+ global contributors to elevate data quality and client satisfaction.
Copywriter
Red Global de Mexicanos en Japón
Mar 2024 - Aug 2024 (5 months)
Wrote and edited outreach content for a government-affiliated organization to support communication initiatives and engagement with Mexican communities in Japan.
University English Teacher
Universidad Del Valle de México
Mar 2024 - Jun 2024 (3 months)
Taught English to 30 students using communicative methods aligned with Cambridge standards and assessed weekly speaking/writing products via Blackboard LMS using quality rubrics.
Education
Degrees, certifications, and relevant coursework
Escuela Normal Superior del Estado de México
Bachelor's Degree, English Language Teaching
Completed a Bachelor's degree focused on English language teaching with coursework and practicum relevant to university-level instruction.
Tech stack
Software and tools used professionally
Availability
Location
MexicoAuthorized to work in
Salary expectations
Job categories
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