Vikash

Senior Data Annotation Expert & Quality Strategist

Maya Studio • Período integral

Jan 2020 - Feb 2026 • 6 yrs 1 mo

Strategic lead with 5+ years of experience specialized in architecting high-fidelity datasets for Computer Vision (CV), Natural Language Processing (NLP), and Large Language Models (LLMs). Expert in designing multi-stage annotation workflows that reduce labeling noise and optimize model training efficiency.Core ExpertiseWorkflow Engineering: Designing gold-standard guidelines and hierarchical labeling ontologies.Quality Assurance (QA): Implementing Inter-Annotator Agreement (IAA) metrics like Cohen’s Kappa ($\kappa$) and F1-score validation.Tooling Mastery: Advanced proficiency in Labelbox, CVAT, Prodigy, and Scale AI.Specialized Domains: LiDAR/3D point clouds for autonomous driving, RLHF (Reinforcement Learning from Human Feedback), and NER (Named Entity Recognition).