Promise O.

Key Skills

Software

Mindrift

Appen

Data Annotation Tech

Top Subject Matter

E-commerce - Search Engine Evaluation, Product Categorization & Customer Support

Coversational AI

Top Data Types

Audio

Text

Document

Top Task Types

Classification

Transcription

Data Collection

Freelancer Overview

Audio Evaluator – TELUS. Brings 5+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Internal, Proprietary Tooling, and RWS Trados. Education includes Bachelor of Science, University of Ibadan (2022). AI-training focus includes data types such as Audio and Text and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

Audio Evaluator – TELUS

Audio

Audio evaluation of English (Nigeria) speech for accent recognition, speech naturalness, and linguistic quality using structured rubrics. Applied internal QA tools to check pronunciation, fluency, and accent variation against linguistic standards. Reviewed large volumes of clips and reduced model/annotation errors by maintaining consistent rubric adherence. • Assessed 6,000+ English (Nigeria) audio clips • Improved speech recognition model accuracy by 20% • Reduced reviewer discrepancies with 98% guideline adherence • Collaborated with QA teams to refine evaluation criteria

2023 - 2024

Quality Assurance Specialist – RWS

Audio

Quality assurance on annotated datasets involving speech transcription outputs and linguistic tagging. Performed audits using RWS tools and internal QA systems to reduce data errors and improve compliance. Identified inconsistencies in linguistic tagging and drove corrective actions to raise overall dataset reliability. • Reduced data errors by 25% through QA audits • Reviewed transcription and annotation outputs for accuracy and completeness • Detected and corrected inconsistencies in linguistic tagging • Improved workflow efficiency by streamlining QA and feedback loops

2022 - 2023

Data Annotator – Mindrift

MindriftTextClassification

Data annotation for NLP models by labeling and categorizing large-scale dataset entries. Applied formal annotation guidelines to ensure consistent categorization across diverse data types. Flagged ambiguous items to improve dataset clarity and support better model training. • Processed 8,000+ dataset entries • Maintained high labeling accuracy • Ensured consistency using annotation guidelines • Flagged ambiguous points to improve usability

2022 - 2022

Internet Rater – Appen (CrowdGen)

AppenText

Internet rater work evaluating web content relevance and quality using search-engine guidelines. Rated user queries and the resulting pages to help improve algorithm performance and ranking quality. Sustained high accuracy across evaluation tasks. • Evaluated web content relevance and quality • Rated user queries and results • Used search-engine guidelines as rubric • Maintained high accuracy scores

2021 - 2022

Data Transcription Specialist – DataAnnotation.tech

Data Annotation TechAudioTranscription

Audio transcription converting spoken content into structured text formats. Ensured grammatical accuracy and correct context in each transcript to meet quality expectations. Delivered consistent transcription outputs while adhering to strict deadlines. • Transcribed audio with high precision • Ensured grammatical accuracy • Verified contextual correctness • Delivered outputs under strict deadlines

2021 - 2021

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Education

Work History