Favour Nkereuwem

Key Skills

Software

Appen

Top Subject Matter

Autonomous Vehicles

Computer Vision

Natural Language Processing

Top Data Types

Image

Text

Document

Top Task Types

Segmentation

RLHF

Freelancer Overview

Data Annotation Specialist (Contract) | Appen. Brings 1+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Appen, Internal, and Proprietary Tooling. Education includes Bachelor of Engineering, Federal University of Technology Owerri (2024). AI-training focus includes data types such as Image and Text and labeling workflows including Segmentation and RLHF.

Labeling Experience

Data Annotation Specialist (Contract) | Appen

AppenImageSegmentation

As a Data Annotation Specialist at Appen, I contributed to large-scale image annotation and semantic segmentation projects for autonomous vehicles. I ensured that annotated data consistently met strict QA benchmarks and accuracy standards. My role also included evaluating search engine results for improved algorithmic relevance and categorization. • Executed high-volume image segmentation tasks for computer vision datasets. • Applied strict quality control measures, consistently surpassing project QA requirements. • Supported machine learning teams with well-labeled data for autonomous vehicles and AI algorithms. • Utilized Appen’s proprietary software tools for efficient annotation workflow.

As a Data Annotation Specialist at Appen, I contributed to large-scale image annotation and semantic segmentation projects for autonomous vehicles. I ensured that annotated data consistently met strict QA benchmarks and accuracy standards. My role also included evaluating search engine results for improved algorithmic relevance and categorization. • Executed high-volume image segmentation tasks for computer vision datasets. • Applied strict quality control measures, consistently surpassing project QA requirements. • Supported machine learning teams with well-labeled data for autonomous vehicles and AI algorithms. • Utilized Appen’s proprietary software tools for efficient annotation workflow.

2026 - 2026

AI Content Annotator | Atlas Capture

TextRLHF

As an AI Content Annotator at Atlas Capture, I specialized in RLHF tasks by ranking and rewriting AI-generated text to improve language model performance. I assessed and adjusted model outputs to align with safety, factual, and persona requirements. My responsibilities included identifying hallucinations and ensuring unbiased content in LLM outputs. • Evaluated and ranked AI responses to enhance LLM safety and factual accuracy. • Rewrote AI-generated text to refine tone and meet persona guidelines. • Flagged problematic content including bias and hallucinations. • Contributed to linguistically nuanced analysis of AI models using internal proprietary software.

As an AI Content Annotator at Atlas Capture, I specialized in RLHF tasks by ranking and rewriting AI-generated text to improve language model performance. I assessed and adjusted model outputs to align with safety, factual, and persona requirements. My responsibilities included identifying hallucinations and ensuring unbiased content in LLM outputs. • Evaluated and ranked AI responses to enhance LLM safety and factual accuracy. • Rewrote AI-generated text to refine tone and meet persona guidelines. • Flagged problematic content including bias and hallucinations. • Contributed to linguistically nuanced analysis of AI models using internal proprietary software.

2025 - 2025

Education

Work History