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Belahu B.

Belahu B.

Data annotator/QA expert at Mindrift (evaluations and ratings for search, products, and AI responses)

Nigeria flagLagos, Nigeria

Key Skills

Software

MindriftMindrift
Other

Top Subject Matter

Search engine results
shopping product categorization
and AI response safety/helpfulness/factuality QA

Top Data Types

TextText
AudioAudio

Top Task Types

TranscriptionTranscription

Freelancer Overview

Data annotator/QA expert at Mindrift (evaluations and ratings for search, products, and AI responses). Brings 7+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Mindrift and Other. Education includes Master of Arts, Adeyemi Federal University (2024) and Bachelor’s Degree, Adeyemi Federal University (2022). AI-training focus includes data types such as Text and Audio and labeling workflows including Evaluation, Rating, and Transcription.

Labeling Experience

Freelance Writer - Upwork

AudioAudioTranscriptionTranscription

You worked as a freelance writer for clients on the Upwork platform, producing content such as blogs, reviews, and articles. You also handled transcription tasks for different types of audio, including conversations and interviews. The role required strong writing, language comprehension, and attention to detail to deliver accurate work on time. • Wrote blogs, reviews, and client articles on Upwork • Transcribed speeches and interviews, including academic and political materials • Maintained consistently high-quality outputs to meet client expectations • Achieved and sustained strong profile ratings and job success metrics

2020 - Present

Freelance transcription work on Upwork (speech-to-text)

OtherAudioAudioTranscriptionTranscription

Transcribed spoken content for clients, converting audio from conversations, interviews, and academic materials into written text. Produced accurate text transcripts as part of client deliverables on a freelance basis. Ensured the resulting transcriptions were usable for client needs and reference. • Transcribed political interviews and academic materials • Transcribed conversations and other spoken recordings • Delivered written outputs derived from audio content • Supported client projects requiring transcript creation

2020 - Present
Mindrift

Data annotator/QA expert at Mindrift (evaluations and ratings for search, products, and AI responses)

MindriftMindriftTextText

Evaluated pair-wise search engine results to determine which option is better and to help improve recommendation and algorithm performance. Compared AI responses to prompts to assess safety, helpfulness, and factuality. Reviewed product pages and verified whether they aligned with the correct shopping categories based on provided guidelines. • Performed QA checks on labeled outputs from other annotators • Gave constructive feedback to annotators when submissions needed improvement • Conducted alignment verification between reviewed products and category taxonomy • Assessed response quality across safety, relevance, and factual correctness

2023 - 2025

Education

A

Adeyemi Federal University

Master of Arts, English and Communications

Master of Arts
2022 - 2024
A

Adeyemi Federal University

Bachelor’s Degree, English and Communications

Bachelor’s Degree
2018 - 2022

Work History

U

Upwork

Freelance Writer

Lagos
2020 - Present
A

Adeyemi Federal University

Research Assistant

N/A
2022 - 2024