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A

Adaora A.

Data Annotation Analyst at Uber AI (remote)

Nigeria flagN/A, Nigeria

Key Skills

Software

Micro1

Top Subject Matter

NLP sentiment analysis and text content evaluation (NLP datasets)
Audio evaluation of accents and transcription alignment (Nigerian English)
AI response evaluation

Top Data Types

TextText
AudioAudio
DocumentDocument

Top Task Types

ClassificationClassification
Prompt + Response Writing (SFT)Prompt + Response Writing (SFT)

Freelancer Overview

Experienced AI Operations Specialist who is results-oriented and detail-oriented and has hands-on experience in data annotation, audio evaluation, response assessment, and data quality control. I possess a strong background in model evaluation and quality assurance with proven accuracy above 95 percent. Experienced in following detailed guidelines and delivering high-volume evaluation tasks within deadlines

Labeling Experience

AI Generalist at Mindrift (remote)

TextTextPrompt + Response Writing (SFT)Prompt + Response Writing (SFT)

Evaluated AI-generated responses for quality, coherence, and instruction alignment using structured response-review processes. Provided feedback to improve response quality and reduce inconsistencies across model outputs. Optimized prompts to enhance response relevance and usability while maintaining high evaluation accuracy. • Assessed response quality, coherence, and instruction alignment. • Conducted structured response reviews to improve model accuracy. • Maintained 96%+ accuracy across evaluation and validation tasks. • Produced actionable feedback and optimized prompts to improve outputs.

2025 - 2026

Data Annotation Analyst at Uber AI (remote)

TextTextClassificationClassification

Labeled and classified text records for sentiment analysis to support NLP model performance and dataset quality. Performed guideline-based review of completed annotations to ensure compliance and data integrity. Identified inconsistencies during validation reviews to improve the overall reliability of the annotated dataset. • Labeled/classified 4,000+ text records with 93%+ accuracy. • Conducted sentiment classification, data categorization, and content assessment for NLP tasks. • Reviewed annotations for guideline compliance and data integrity. • Performed validation checks to detect inconsistencies and strengthen dataset quality.

2024 - 2025

AI Evaluator at Micro AI (remote)

AudioAudio

Evaluated short audio clips in Nigerian English using structured rating rubrics for accent accuracy and speech naturalness. Compared multiple audio samples to select the most natural and contextually accurate speech patterns. Reviewed transcription outputs alongside audio to verify alignment, clarity, and correctness. • Rated accent accuracy and speech naturalness using consistent rubrics. • Compared audio samples to determine best contextual speech patterns. • Checked audio-to-transcription alignment for correctness and clarity. • Maintained accuracy above 96% while following detailed evaluation guidelines.

2022 - 2023

Education

N

Nnamdi Azikiwe University

Bachelor of Science, Computer Science

Bachelor of Science
Not specified

Work History

M

Mindrift

AI Generalist (Model Evaluation)

N/A
2025 - 2026
U

Uber AI

NLP Data Preparation Specialist

N/A
2024 - 2025