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A

Ajayi Emmanuel

Data Annotator/QA Expert

Nigeria flagAbuja, Nigeria
$5.00/hrIntermediateAppen

Key Skills

Software

AppenAppen

Top Subject Matter

Search Engine Evaluation
AI-generated Media Review

Top Data Types

ImageImage
TextText
AudioAudio

Top Task Types

Bounding BoxBounding Box
Object DetectionObject Detection
Text GenerationText Generation
TranscriptionTranscription
Data CollectionData Collection
Question AnsweringQuestion Answering
ClassificationClassification

Freelancer Overview

Data Annotator/QA Expert. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Appen. Education includes Bachelor of Technology, Federal University of Technology, Minna (2023) and Secondary School Leaving Certificate, Federal Government Boys’ College, Garki (2018). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

IntermediateEnglishYoruba

Labeling Experience

Appen

Data Annotator/QA Expert

AppenText
As a Data Annotator/QA Expert at Appen, I evaluated AI-generated outputs and assessed search engine results to improve algorithms. My work involved reviewing responses for realism, safety, and factuality according to given prompts. This role contributed to enhancing recommendation systems and overall AI performance. • Performed pairwise ranking of search engine results for relevance. • Reviewed AI-generated images and videos for prompt accuracy. • Evaluated text responses for safety and helpfulness. • Contributed to algorithm and recommendation system improvements.

As a Data Annotator/QA Expert at Appen, I evaluated AI-generated outputs and assessed search engine results to improve algorithms. My work involved reviewing responses for realism, safety, and factuality according to given prompts. This role contributed to enhancing recommendation systems and overall AI performance. • Performed pairwise ranking of search engine results for relevance. • Reviewed AI-generated images and videos for prompt accuracy. • Evaluated text responses for safety and helpfulness. • Contributed to algorithm and recommendation system improvements.

2024 - 2025

Education

F

Federal University of Technology, Minna

Bachelor of Technology, Statistics and Mathematics

Bachelor of Technology
2019 - 2023
F

Federal Government Boys’ College, Garki

Secondary School Leaving Certificate, General Secondary Education

Secondary School Leaving Certificate
2012 - 2018

Work History

U

Upwork

Freelance Data Analyst

Abuja
2022 - Present
N

National Information Technology Development Agency

Research and Data Science Intern

Abuja
2024 - 2024