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E

Ekperebuike Nsofor

QA Tester

NIGERIA flag
Enugu, Nigeria
$7.00/hrExpertMercorMicro1Oneforma

Key Skills

Software

MercorMercor
Micro1
OneFormaOneForma

Top Subject Matter

Data Analyst and AI Evaluator
Technical content specialist and QA tester
Data quality Assurance

Top Data Types

ImageImage
TextText
VideoVideo

Top Task Types

Data Collection
RLHF
Text Generation
Red Teaming
Evaluation Rating
Question Answering
Text Summarization

Freelancer Overview

QA Tester. Brings 2+ years of professional experience across complex professional workflows, research, and quality-focused execution. Image, audio, and video annotation expert with experience with Uber AI, Perle Labs, With Uber AI, I was able to record speech audio to create a data set for natural language processing, responding to prompts and on topics like exercise, and providing open-ended insights. With Perle Labs, I was able to use AI prompts in a specific domain, like medicine and law. identifying errors in medical prescriptions and conflicting clauses in written legal contracts.

ExpertEnglishIgbo

Labeling Experience

Speech, image and audio labeling and domain expert evaluation

AudioTranscription
Evaluated AI prompts and output in a specialized domain like medicine and law. Identifying errors in medical descriptions and conflicting clauses in legal contracts.

Evaluated AI prompts and output in a specialized domain like medicine and law. Identifying errors in medical descriptions and conflicting clauses in legal contracts.

2026 - 2026

Education

U

University of Nigeria, Nsukka

Bachelor of Science, Economics

Bachelor of Science
2020 - 2024

Work History

T

Testio

QA Tester

Remote
2025 - Present
P

PerLabs

Quality assurance expert

cairo
2025 - 2026