Walter

Key Skills

Software

Lionbridge

AWS SageMaker

Anno-Mage

Top Subject Matter

Multilingual Content

AI-generated Text

Localization Domain Expertise

Top Data Types

Text

Document

Image

Top Task Types

Segmentation

Polygon

Text Generation

Question Answering

Text Summarization

Freelancer Overview

Data Annotator / AI Content Reviewer (Contract). Brings 8+ years of professional experience across legal operations, contract review, compliance, and structured analysis. Core strengths include Appen, N, and A. Education includes Bachelor of Arts, University of Nairobi (2020) and Kenya Certificate of Secondary Education, Alliance High School (2015). AI-training focus includes data types such as Text and labeling workflows including Evaluation and Rating.

Labeling Experience

Freelance Translator & Content Reviewer

Text

As a freelance translator and content reviewer, I evaluated and improved AI-generated text outputs to maintain content integrity. My responsibilities included reviewing quality and fluency to enhance readability and relevance. I localized and managed bilingual content, ensuring alignment with cultural and linguistic standards. • Conducted AI-generated output fact-checking and evaluation • Improved clarity and fluency of machine translated or generated text • Localized Chinese–English content according to context and audience • Maintained consistent quality assurance for content in NLP projects

As a freelance translator and content reviewer, I evaluated and improved AI-generated text outputs to maintain content integrity. My responsibilities included reviewing quality and fluency to enhance readability and relevance. I localized and managed bilingual content, ensuring alignment with cultural and linguistic standards. • Conducted AI-generated output fact-checking and evaluation • Improved clarity and fluency of machine translated or generated text • Localized Chinese–English content according to context and audience • Maintained consistent quality assurance for content in NLP projects

2020 - Present

Data Annotator / AI Content Reviewer (Contract)

AppenText

As a Data Annotator and AI Content Reviewer with Appen, I evaluated and ranked AI-generated responses for quality and accuracy. I applied strict annotation guidelines to label large volumes of text, assisting in the improvement of NLP models. My work included identifying linguistic and contextual errors, providing feedback to improve AI outputs. • Evaluated the quality, relevance, and accuracy of machine-generated text • Labeled and annotated substantial text datasets for AI model enhancement • Applied evaluation metrics and guidelines to ensure data consistency • Supported model improvement by identifying and communicating errors

As a Data Annotator and AI Content Reviewer with Appen, I evaluated and ranked AI-generated responses for quality and accuracy. I applied strict annotation guidelines to label large volumes of text, assisting in the improvement of NLP models. My work included identifying linguistic and contextual errors, providing feedback to improve AI outputs. • Evaluated the quality, relevance, and accuracy of machine-generated text • Labeled and annotated substantial text datasets for AI model enhancement • Applied evaluation metrics and guidelines to ensure data consistency • Supported model improvement by identifying and communicating errors

2021 - 2022

Education

Work History