Open to opportunities

David Nganga

@davidnganga1

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Data analyst specializing in AI training, data quality, and actionable insights.

Kenya

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What I'm looking for

I seek a data role where I can apply AI training and data-quality expertise, work collaboratively on model improvement, and contribute to reproducible reporting and process optimisation in a growth-oriented team.

I am a detail-oriented data analyst with hands-on experience in data collection, cleaning, validation, reporting, and AI data training. I have partnered with teams to transform complex datasets into clear, reproducible insights, developed dashboards and structured documentation, and supported process improvements that improve data quality and operational efficiency.

My background includes contract AI data training, research, and annotation across multiple platforms where I designed prompts, evaluated model outputs, and established quality benchmarks. I combine strong communication and administrative support skills with practical experience in fact-checking, content review, and performance reporting to ensure reliable model and business outcomes.

Experience

Work history, roles, and key accomplishments

AI Data Trainer

OpenAI

Oct 2025 - Nov 2025 (1 month)

Analysed and evaluated AI-generated responses to improve accuracy, relevance, and safety; designed and tested structured prompts and documented findings to support continuous model improvement.

Data Annotation Prompt Engineering QA Data Analysis Documentation Model Evaluation Collaboration

Research Associate

Sama Kenya

Mar 2022 - Mar 2025 (3 years)

Conducted product and market research across e-commerce platforms, collected and cleaned large datasets, performed competitive and trend analysis, and produced structured reports to support client decision-making.

Data Collection Data Cleaning Market Research Competitive Analysis Reporting Fact Checking Documentation

Data Specialist

Sama Kenya

Jun 2021 - Feb 2022 (8 months)

Reviewed and evaluated multimodal data against quality standards, flagged sensitive content, maintained performance records, and contributed feedback to improve data quality and workflows.

Data Annotation Quality Assurance Content Moderation Reporting Record keeping

Data Specialist

CloudFactory

Jan 2021 - Apr 2021 (3 months)

Collected, cleaned, and validated datasets to ensure accuracy; analysed data to identify trends and developed dashboards and reports to communicate findings to stakeholders.

Data Cleaning Validation Data Analysis Dashboarding Reporting

Farm Supervisor

Tungo Farm

Aug 2020 - Dec 2020 (4 months)

Managed schedules, records, and daily farm operations and maintained accurate documentation of inputs, production, labour, and sales to improve operational reliability.

Operations Management Scheduling Record keeping Reporting