Justine S.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Detail-oriented AI Analyst and LLM Analyst with proven experience in training AI models, evaluating system performance, and supporting large-scale AI applications. Brings 3+ years of academic research assistance for a University of North Carolina (UNC) professor and 8+ years of combined experience in technical writing, content strategy, business development, and academic support. Specializes in designing analytical frameworks, optimizing performance, and testing Large Language Models (LLMs) to ensure accuracy, safety, and contextual relevance across text generation, sentiment analysis, and AI-assisted research use cases. Combines a strong Mathematics background with structured thinking to interpret complex datasets and improve model output workflows. CORE COMPETENCIES • AI Model Analysis: Evaluation, optimization, and output quality assurance. • LLM Training & Tuning: Data structuring, annotation, and prompt framework testing. • Research & Analytics: Academic literature reviews, trend detection, and dataset organization. • Technical Writing: ERP/SaaS documentation, user manuals, and process mapping. • Workflow Automation: CRM systems (Salesforce), process design, and digital optimization.