Open to opportunities

Dan nyaga

@duncannyaga

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Junior data scientist skilled in Python, SQL, and actionable analytics.

Kenya

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What I'm looking for

I am looking for junior-to-mid data roles where I can apply Python, SQL, and visualization to deliver actionable insights, collaborate with cross-functional teams, and grow in machine learning and data engineering.

I am a junior data scientist with a solid foundation in statistical analysis, machine learning, and data visualization, eager to contribute to innovative technology projects.

I have practical experience annotating and refining datasets for LLMs and search engines, and I have supported content moderation and multilingual adaptation for AI systems.

My background includes supply chain analytics where I used Excel and SAP to clean data, forecast demand, and reduce stockouts by 10%, demonstrating measurable operational impact.

I hold data-focused training from Moringa School and ALX Africa, plus certifications in Data Science Math Skills and Python programming, and I bring a collaborative, detail-oriented approach to delivering actionable insights.

Experience

Work history, roles, and key accomplishments

Current

Data Annotator / Analyst

Current

Centific

Jun 2022 - Present (3 years 3 months)

Assessed and refined LLM outputs for safety and accuracy, annotated diverse datasets to improve model training, and evaluated search results and geospatial data to enhance relevance and mapping accuracy.

Data Annotation LLM Output Evaluation Data Cleaning Python SQL Geospatial analysis Quality Assurance Search Relevance

Data Analyst

Appen

Jan 2022 - Jan 2024 (2 years)

Conducted content risk assessments and cultural adaptation for multilingual datasets, collaborated with data science teams on annotation alignment, and delivered trend analyses to inform AI projects.

Content Moderation Data Annotation Data Analysis Python SQL Reporting

Supply Chain Analyst

Population Services Kenya

May 2021 - Jan 2022 (8 months)

Maintained and cleaned supply chain datasets using Excel and ERP (SAP), forecasted demand to reduce stockouts by 10%, and produced reports to inform procurement and inventory decisions.

Supply Chain Analytics Excel SAP Data Cleaning Reporting Stakeholder Management

Education

Degrees, certifications, and relevant coursework

Moringa School

Data Science Bootcamp, Data Science

2025 -

Enrolled in a Data Science bootcamp focusing on practical skills in data analysis, machine learning, and tools for applied projects.

ALX Africa

Data Analytics Certificate, Data Analytics

2024 - 2024

Completed an intensive Data Analytics bootcamp culminating in a Data Analytics Certificate.

Jomo Kenyatta University of Agriculture and Technology

Bachelor of Science, Supply Chain Management

2016 - 2021

Grade: Second Class Upper Division

Completed a Bachelor of Science in Supply Chain Management with Second Class Upper Division, covering procurement, logistics, and inventory management.