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Stephen Oladipo-Raji

Generalist || Annotator Ai Specialist

Canada flagKitchener, Canada
$20.00/hrIntermediateMercorMicro1Don T Disclose

Key Skills

Software

MercorMercor
Micro1
Don't disclose
RemotasksRemotasks
Data Annotation TechData Annotation Tech

Top Subject Matter

Computer

Top Data Types

DocumentDocument
ImageImage
TextText

Top Task Types

Bounding Box
Polygon
Segmentation
Text Generation
Transcription
Data Collection
Classification

Freelancer Overview

Advisor II – Technical Support. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Education includes Postgraduate Diploma, Conestoga College (2023) and Bachelor of Science, Bowen University (2020).

IntermediateEnglishYorubaFrench

Labeling Experience

Text to Audio

AudioTranscription
valuated pairs of AI-generated audio samples (Audio A and Audio B) against detailed prompts specifying speaker scripts, diarization, non-verbal expressions (e.g. <laugh>, <cough>, <gasp>), filler words, and ambient sound cues. Assessed each audio for transcript accuracy, correct speaker assignment, presence of specified non-verbal tags, and overall sound quality including volume, clarity, voice definition, and absence of artifacts. Selected the preferred audio per question with objective justification, avoiding ties unless samples were genuinely indistinguishable across all evaluated dimensions.

valuated pairs of AI-generated audio samples (Audio A and Audio B) against detailed prompts specifying speaker scripts, diarization, non-verbal expressions (e.g. <laugh>, <cough>, <gasp>), filler words, and ambient sound cues. Assessed each audio for transcript accuracy, correct speaker assignment, presence of specified non-verbal tags, and overall sound quality including volume, clarity, voice definition, and absence of artifacts. Selected the preferred audio per question with objective justification, avoiding ties unless samples were genuinely indistinguishable across all evaluated dimensions.

2025 - 2026

Bounding Box Grounding

ImageBounding Box
Performed bounding box annotation on high-quality images for a computer vision AI training dataset. Tasks included identifying and labeling multiple objects per image, applying precise box placement using zoom and highlight tools, and ensuring left-to-right ordering for sequential objects. Maintained strict quality standards by verifying full coverage, avoiding single-box grouping for multi-object prompts, and completing all annotation tasks per submitted image before advancing.

Performed bounding box annotation on high-quality images for a computer vision AI training dataset. Tasks included identifying and labeling multiple objects per image, applying precise box placement using zoom and highlight tools, and ensuring left-to-right ordering for sequential objects. Maintained strict quality standards by verifying full coverage, avoiding single-box grouping for multi-object prompts, and completing all annotation tasks per submitted image before advancing.

2025 - 2026

Education

C

Conestoga College

Postgraduate Diploma, Web Development

Postgraduate Diploma
2022 - 2023
B

Bowen University

Bachelor of Science, Computer Science

Bachelor of Science
2016 - 2020

Work History

C

Concentrix Technologies Services

Advisor II – Technical Support

Kitchener
2025 - Present
M

Marriott International

Sales & Service Reservation Agent

Kitchener
2025 - 2025