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Freelancer Overview
JOSEPH BARTHOLOMEW TIZAMBO Abuja, FCT, Nigeria | 07056341954 | [email protected] PROFESSIONAL SUMMARY Detail-oriented and reliable data annotation specialist with experience in labeling datasets, evaluating AI outputs, and supporting data-driven projects. Strong background in education and research, with excellent attention to detail, analytical thinking, and ability to follow complex guidelines. Seeking remote AI training, annotation, or data analysis roles. CORE SKILLS (cid:127) Data Annotation (Image, Text, Video) (cid:127) Microsoft Excel & Google Sheets (cid:127) AI Output Evaluation & Quality Review (cid:127) Fast Typing & Digital Tools Usage (cid:127) Attention to Detail & Accuracy (cid:127) Communication & Instruction Following (cid:127) Data Entry & Data Cleaning (cid:127) Research & Information Verification (cid:127) Basic Data Analysis WORK EXPERIENCE Data Annotation Assistant Freelance / Remote | 2022 (cid:127) Labeled and categorized datasets for AI model training (cid:127) Reviewed and corrected annotation errors to improve data quality (cid:127) Followed detailed guidelines to ensure consistency and accuracy Floor Staff H-Medix Pharmacy & Store, Abuja | 2024 – Present (cid:127) Managed inventory and customer transactions (cid:127) Maintained accurate records of stock and sales (cid:127) Supported daily operations with attention to detail Teacher (Multiple Schools) Abuja, Nigeria | 2018 – 2022 (cid:127) Delivered lessons in Biology and Chemistry