Abubakar A.

Key Skills

Software

Lionbridge

Toloka

Mindrift

Top Subject Matter

Large Language Models

AI Content Evaluation

Top Data Types

Image

Video

Text

Top Task Types

Bounding Box

Polygon

Point/Key Point

Segmentation

Entity (NER) Classification

Classification

Freelancer Overview

AI Data Annotator/Content Evaluator/QA Expert. Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Mindrift. Education includes Bachelor of Science, Ahmadu Bello University (2015). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Labeling Experience

AI Data Annotator/Content Evaluator/QA Expert

MindriftText

As an AI Data Annotator and Content Evaluator at Mindrift, Crowdgen by Appen, and Turing, I evaluated and refined AI-generated responses to improve large language model training. My work involved summarizing complex information, reviewing content for factual and linguistic accuracy, and breaking down tasks into structured components. I identified inconsistencies, provided structured feedback, and maintained quality using strict guidelines. • Evaluated output relevance, clarity, coherence, and tone • Summarized long-form content into concise, structured outputs • Verified factual correctness through online research • Adhered to high-volume workflows using established annotation frameworks

2022 - Present

video labeling

TolokaVideoEntity (NER) ClassificationSegmentation

classifying ads on a given video

2025 - 2025

Image labelling

LionbridgeImageBounding BoxPolygon

label electric poles correctly

2025 - 2025

Education

Work History