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Tochukwu Anselem Fem Ubah

Tochukwu Anselem Fem Ubah

AI Data Annotator/labeller

NIGERIA flag
lagos, Nigeria
$20.00/hrIntermediateData Annotation Tech

Key Skills

Software

Data Annotation TechData Annotation Tech

Top Subject Matter

No subject matter listed

Top Data Types

VideoVideo

Top Label Types

Segmentation

Freelancer Overview

Profile Overview I am a seasoned training data AI expert possessing practical experience as a T3 Graduate Labeler at Atlas. I have completed numerous data annotation projects of high quality to support machine learning and the development of large language models. Some of my experience involves annotating text, evaluating content, grading by prompt responses, categorizing, and quality assurance processes. Since I was a T3 labeler, I was expected to correctly label as well as ensure a high level of adherence to guidelines, check edge cases and be consistent across complex datasets. My good analytical knowledge, keen eye, and capacity to assess and analyze the changing annotation policies can enable me to provide accurate and consistent data during training that enhances model efficiency. Experience in data labeling / AI training. As a T3 Graduate Labeler in Atlas, I was working on the independent projects of high-order AI training, including natural language processing tasks, including intent classification, sentiment analysis, response ranking, safety assessment, and data validation. I engaged in dealing with subtle linguistic situations and ambiguity and policy-based moderation activities regularly. The work demanded critical thinking, precision in meeting of tight deadlines, and coordination with QA teams to improve on the standards of labeling. I have been exposed to working with big data, tracking productivity indicators, and responding to changed project demands in a short time-period, with quality output having to meet the desired model training goals.

IntermediateEnglish

Labeling Experience

Data Annotation Tech

T3 Graduate labeler

Data Annotation TechVideoSegmentation
video labelling

video labelling

2025

Education

U

University of Nigeria, Nsukka

Bachelor of Engineering, Metallurgical and Materials Engineering

Bachelor of Engineering
2007 - 2012

Work History

I

Ikeja Electric

Payment Channel Supervisor

Lagos
2018 - Present
V

Vigeo Power Limited

Service Manager

Lagos
2017 - 2018