Joseph Olorunfemi

Key Skills

Software

Other

Mindrift

Telus

Top Subject Matter

AI Prompt Evaluation

AI Data Annotation

Image and Audio Annotation

Top Data Types

Text

Image

Top Task Types

Classification

Mapping

Freelancer Overview

Expert Annotator. Core strengths include Other, Mindrift, and LXT. Education includes Bachelor of Science in Nursing, N/A (2024). AI-training focus includes data types such as Text, Image, and Geospatial and labeling workflows including Evaluation, Rating, and Classification.

Labeling Experience

Expert Annotator

OtherText

As an Expert Annotator at NextGen AI, I evaluated and analyzed a variety of AI-generated prompts for different qualitative attributes. This role required careful assessment of factors such as honesty and harmfulness, with an emphasis on accuracy and following complex guidelines. My efforts contributed to improved prompt quality and safer AI model outputs. • Conducted rigorous evaluation of AI prompts. • Assessed prompts against multiple qualitative and ethical standards. • Ensured consistency and detail in analysis. • Collaborated with AI teams to optimize prompt performance.

As an Expert Annotator at NextGen AI, I evaluated and analyzed a variety of AI-generated prompts for different qualitative attributes. This role required careful assessment of factors such as honesty and harmfulness, with an emphasis on accuracy and following complex guidelines. My efforts contributed to improved prompt quality and safer AI model outputs. • Conducted rigorous evaluation of AI prompts. • Assessed prompts against multiple qualitative and ethical standards. • Ensured consistency and detail in analysis. • Collaborated with AI teams to optimize prompt performance.

2023 - Present

Data Validation Specialist

TelusMapping

As a Data Validation Specialist for Telus International, I validated Points of Interest (POIs), regions, and localities on digital maps to support AI and geospatial applications. The role relied on accuracy in annotation and reconciliation of mapping data across various inputs. This contributed to overall reliability and integrity of geospatial datasets for AI use. • Validated POI and mapping data for quality and reliability. • Utilized specialized internal and mapping tools. • Identified and corrected mapping discrepancies. • Supported improvement of geospatial AI datasets.

As a Data Validation Specialist for Telus International, I validated Points of Interest (POIs), regions, and localities on digital maps to support AI and geospatial applications. The role relied on accuracy in annotation and reconciliation of mapping data across various inputs. This contributed to overall reliability and integrity of geospatial datasets for AI use. • Validated POI and mapping data for quality and reliability. • Utilized specialized internal and mapping tools. • Identified and corrected mapping discrepancies. • Supported improvement of geospatial AI datasets.

2024 - 2025

Freelance Image \ Audio Annotator

ImageClassification

As a Freelance Image and Audio Annotator for LXT, I was responsible for accurately labeling diverse audio and image data samples. I maintained a quality standard of 90%, ensuring high accuracy in annotations. My work supported machine learning teams in building well-labeled datasets. • Labeled image and audio samples for AI training. • Maintained and documented annotation quality standards. • Used proprietary and standardized labeling tools. • Supported dataset creation for supervised learning.

As a Freelance Image and Audio Annotator for LXT, I was responsible for accurately labeling diverse audio and image data samples. I maintained a quality standard of 90%, ensuring high accuracy in annotations. My work supported machine learning teams in building well-labeled datasets. • Labeled image and audio samples for AI training. • Maintained and documented annotation quality standards. • Used proprietary and standardized labeling tools. • Supported dataset creation for supervised learning.

2024 - 2025

Prompt Reviewer | DA Specialist

MindriftText

Served as a Prompt Reviewer and Data Annotation Specialist for Mindrift AI, supporting multiple AI training projects. Responsibilities included reviewing, annotating, and quality-checking diverse text-based datasets. Ensured adherence to guidelines and provided valuable feedback on data quality. • Managed and reviewed diverse AI-based data annotation projects. • Performed data labeling, annotation, and validation tasks. • Implemented feedback to enhance data accuracy and consistency. • Collaborated across teams for project success.

Served as a Prompt Reviewer and Data Annotation Specialist for Mindrift AI, supporting multiple AI training projects. Responsibilities included reviewing, annotating, and quality-checking diverse text-based datasets. Ensured adherence to guidelines and provided valuable feedback on data quality. • Managed and reviewed diverse AI-based data annotation projects. • Performed data labeling, annotation, and validation tasks. • Implemented feedback to enhance data accuracy and consistency. • Collaborated across teams for project success.

2024 - 2024

Education

Work History