Open to opportunities

Vivian Sara

@viviansara

Message

Detail-oriented AI Data Trainer and Data Labeler delivering high-quality datasets for ML model training.

Kenya

Message

What I'm looking for

I’m looking to grow in AI data operations—dataset collection, labeling, and QA—where I can apply strict guideline adherence, privacy/PII redaction, and high-accuracy verification to consistently deliver high-quality training data.

I’m a detail-oriented AI Data Contributor focused on data labeling and dataset collection for advanced machine learning models. Since June 2025, I’ve executed large-scale data sourcing and curation for computer vision and natural language processing, achieving 98%+ project acceptance rates through rigorous Quality Assurance (QA) and self-checks.

I also combine technical precision with strong operational communication: I enforce strict data privacy and data security, including identifying and redacting Personally Identifiable Information (PII) before submission. Previously, as a Social Media Manager & Digital Content Specialist, I managed cross-platform inquiries, optimized digital content, and documented operational metrics and user interactions in CRM for internal reporting.

Experience

Work history, roles, and key accomplishments

Current

AI Data Trainer & Collector

Current

OpenTrain AI

Jun 2025 - Present (1 year)

Executed large-scale computer vision and NLP dataset collection and curation for machine learning model training across multiple crowdsourcing platforms, achieving 98%+ quality approval through rigorous QA and self-checks. Sourced and formatted non-synthetic English text and labeled/organized image data while enforcing data governance, including PII identification and redaction.

Text Annotation Data Quality Assurance Data Curation QA Data Governance

Volunteer & Club Member

YoungLife Club

Jan 2022 - Jan 2025 (3 years)

Volunteered as a club member with YoungLife Club, supporting club activities and participation from 2022 through 2025.

Volunteering Team Support Community Engagement Communication Event Participation Reliability

Social Media Manager

Eazistey Company Kenya

Jan 2024 - Dec 2024 (11 months)

Managed cross-platform digital content and inquiries, maintaining brand voice and tracking performance metrics. Captured and optimized high-resolution property visuals with descriptive captions and recorded operational metrics and user interaction histories in a CRM for internal reporting.

Social Media Management Digital Content Creation Performance Metrics

Branding and Customer Experience Lead

AIESEC

Aug 2023 - Dec 2023 (4 months)

Led branding and customer experience efforts for AIESEC in Chuka University, coordinating team activities and customer-facing experience initiatives. Supported volunteer deliverables between August and December 2023.

Team Leadership Branding Customer Experience Communication Campaign Coordination