Samantha O.

Key Skills

Freelancer Overview

Samantha Onthigo AI Data Training Specialist | AI Quality Analyst | Generative AI Data Operations Professional Austin, Texas, USA | (218)305 9217 | [email protected] Professional Summary Experienced AI Data Training Specialist with 6+ years of progressive experience supporting machine learning, NLP, LLMs, and data annotation programs. Demonstrated success advancing from Data Annotator to Senior AI Data Training Specialist through consistent delivery of high-quality datasets, process improvements, team leadership, and model evaluation initiatives. Core Competencies AI Data Training, LLM Evaluation, Generative AI Testing, RLHF, Data Annotation, Prompt Engineering, NLP Dataset Creation, Quality Assurance, Python, SQL, Labelbox, Jira, Team Leadership, Workflow Optimization Professional Experience Senior AI Data Training Specialist – Scale AI (Jan 2024–Present) • Led a team of 15 AI trainers and quality analysts. • Improved annotation consistency from 89% to 97%. • Managed datasets exceeding 3 million records. AI Quality Analyst – TELUS Digital (Mar 2022–Dec 2023) • Evaluated over 500,000 AI-generated outputs. • Created quality scorecards improving accuracy by 18%. • Supported prompt engineering initiatives. AI Data Trainer – Appen (Jun 2020–Feb 2022) • Achieved quality scores above 95%. • Trained and mentored new annotators. Data Annotation Specialist – Lionbridge AI (Jul 2018–May 2020) • Labeled and validated over 1 million data points. • Maintained 98% annotation accura