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Dagba Opeyemi

Dagba Opeyemi

AI Data Labeling & Prompt Evaluation Specialist

NIGERIA flag
Abuja, Nigeria
$10.00/hrExpertScale AIRemotasksToloka

Key Skills

Software

Scale AIScale AI
RemotasksRemotasks
TolokaToloka
OneFormaOneForma
Micro1
MercorMercor

Top Subject Matter

AI Model Evaluation
Prompt Engineering
Multimodal Data

Top Data Types

TextText
ImageImage
DocumentDocument

Top Task Types

Bounding Box
Segmentation
Classification
Object Detection
Text Generation
Question Answering
Text Summarization
Transcription
Data Collection
Prompt Response Writing SFT
Evaluation Rating

Freelancer Overview

AI Data Labeling & Prompt Evaluation Specialist. Brings 4+ years of professional experience across complex professional workflows, research, and quality-focused execution. Core strengths include Outlier AI, Handshake AI, and Scale AI. Education includes Bachelor of Engineering, Federal University of Technology, Minna (2025). AI-training focus includes data types such as Text and Image and labeling workflows including Evaluation, Rating, and Bounding Box.

ExpertEnglishYoruba

Labeling Experience

Video Data Labeling Contributor

VideoObject Detection
Applied object detection and classification labeling techniques to video-based datasets as part of AI training workflows, ensuring consistent frame-level annotation quality

Applied object detection and classification labeling techniques to video-based datasets as part of AI training workflows, ensuring consistent frame-level annotation quality

2026 - Present

Audio Transcription & Multilingual Data Annotator

AudioTranscription
Contributed to audio transcription and multilingual tagging tasks for speech recognition datasets. Delivered Yoruba and English language audio annotation including transcription and speaker labeling

Contributed to audio transcription and multilingual tagging tasks for speech recognition datasets. Delivered Yoruba and English language audio annotation including transcription and speaker labeling

2025 - Present

AI Response Evaluator & Data Annotator

Text
As an AI Response Evaluator & Data Annotator at Handshake AI, I assessed the quality, safety, and user intent alignment of AI-generated outputs. I executed structured annotation tasks, identifying model errors and non-compliance cases in diverse task categories. I provided detailed rationales for all ratings to assist in model improvement workflows. • Evaluated outputs for hallucinations, unsafe content, and instruction adherence. • Delivered structured annotations requiring critical judgment on tone and factuality. • Supported improvement cycles by contributing nuanced feedback and critiques. • Worked remotely to ensure timely completion of distributed annotation assignments.

As an AI Response Evaluator & Data Annotator at Handshake AI, I assessed the quality, safety, and user intent alignment of AI-generated outputs. I executed structured annotation tasks, identifying model errors and non-compliance cases in diverse task categories. I provided detailed rationales for all ratings to assist in model improvement workflows. • Evaluated outputs for hallucinations, unsafe content, and instruction adherence. • Delivered structured annotations requiring critical judgment on tone and factuality. • Supported improvement cycles by contributing nuanced feedback and critiques. • Worked remotely to ensure timely completion of distributed annotation assignments.

2024 - Present

AI Data Labeling & Prompt Evaluation Specialist

Text
As an AI Data Labeling & Prompt Evaluation Specialist at Outlier AI, I evaluated and rated AI-generated responses in English and Yoruba across various qualitative metrics. I contributed to large-scale AI dataset creation, including RLHF tasks, head-to-head model evaluations, and vision/image annotations. I also crafted and refined prompts for LLMs, supporting diverse data pipelines. • Conducted nuanced human assessments for RLHF workflows and model comparison tasks. • Labeled visual content and completed instruction-following assessments for multimodal AI models. • Maintained high consistency and quality scores in batch processing environments. • Performed transcription and translation for Yoruba language data projects.

As an AI Data Labeling & Prompt Evaluation Specialist at Outlier AI, I evaluated and rated AI-generated responses in English and Yoruba across various qualitative metrics. I contributed to large-scale AI dataset creation, including RLHF tasks, head-to-head model evaluations, and vision/image annotations. I also crafted and refined prompts for LLMs, supporting diverse data pipelines. • Conducted nuanced human assessments for RLHF workflows and model comparison tasks. • Labeled visual content and completed instruction-following assessments for multimodal AI models. • Maintained high consistency and quality scores in batch processing environments. • Performed transcription and translation for Yoruba language data projects.

2024 - Present

image and vision Data annotation

ImageObject Detection
nnotated image datasets for multimodal AI model training including bounding box labeling, object detection, visual Q&A, and image description tasks. Maintained high accuracy across quality-audited batches on Outlier AI and Scale AI platforms.

nnotated image datasets for multimodal AI model training including bounding box labeling, object detection, visual Q&A, and image description tasks. Maintained high accuracy across quality-audited batches on Outlier AI and Scale AI platforms.

2023 - Present

Education

F

Federal University of Technology, Minna

Bachelor of Engineering, Electrical and Electronics Engineering

Bachelor of Engineering
2021 - 2025

Work History

A

Abuja Electricity Distribution Company

Field Enumerator

Abuja
2024 - Present
M

Marriott Hotel

Engineering Intern (Mechanical & Facilities)

Lagos
2023 - 2023