Open to opportunities

Denis Njeru

@denisnjeru

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Data and business analyst driving data-driven decisions with BI, statistics, and predictive models.

Kenya

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What I'm looking for

I seek a collaborative, growth-focused role where I can apply BI, statistical modelling, and predictive analytics to drive strategic decisions and operational improvements.

I am a results-driven Data and Business Analyst with strong expertise in statistical software (R, SPSS, Stata), programming (Python, SQL), and data visualization using Power BI and Excel. I translate complex datasets into actionable insights and build interactive dashboards and predictive models that improve operational performance and strategic planning.

My experience spans senior analyst roles, freelancing, and AI data annotation, where I have built financial and SQL-based models, implemented machine learning solutions, and increased efficiencies across agricultural, supply chain, and e-commerce projects. Key achievements include improving prediction accuracy by 25%, raising farmer productivity by 15%, and reducing manual reporting time by 70% through automation.

I collaborate effectively with cross-functional and senior management teams to integrate analytics into decision-making and process improvements. I am seeking to contribute to a dynamic organization where my analytical rigor, statistical background, and BI expertise can drive measurable business impact.

Experience

Work history, roles, and key accomplishments

Current

Senior Data Analyst

Current

Sandpro Ltd

Apr 2025 - Present (11 months)

Leading data analysis initiatives to optimize flower production and supply chain, building Power BI dashboards and predictive models to improve forecasting and cost control.

Power BI SQL Excel Python predictive modeling Data Visualization Forecasting Supply Chain Analytics

Current

AI Data Annotator

Current

Various Platforms

Jan 2022 - Present (4 years 2 months)

Annotated and validated diverse datasets for AI/ML training, maintaining high labeling accuracy and providing quality feedback to improve model performance over 3+ years.

Data Annotation & QA NLP Computer Vision Python Data Labeling Quality Assurance Model Evaluation

Professional Freelancer

Easy Superiors

Jun 2023 - Mar 2025 (1 year 9 months)

Delivered data analysis and custom statistical models for clients, creating dashboards and A/B tests that improved prediction accuracy by ~25% and conversion rates by 15%.

Power BI Tableau Python SPSS R A B Testing Statistical Modeling Data Visualization

Junior Statistician

Embu County Government

Jun 2022 - May 2024 (1 year 11 months)

Performed data analysis and developed automated Power BI reports that increased operational efficiency by 15% and reduced manual reporting time by 70%.

Power BI Excel predictive modeling Machine Learning Data Cleaning Statistical Analysis

Data Analyst

ACDI/VOCA

Apr 2022 - Dec 2023 (1 year 8 months)

Analyzed agricultural value chains and built Power BI dashboards, applying statistical methods and ML to increase farmer productivity by 15% and program efficiency by 20%.

Power BI SPSS Stata Python SQL Statistical Analysis Machine Learning

Credit Officer

Premier Credit Guarantees

Dec 2021 - Dec 2023 (2 years)

Conducted loan assessments and financial advisory, maintaining credit records and implementing risk mitigation strategies to improve repayment rates.

Credit Analysis Financial Analysis Risk Assessment Customer Advisory & Compliance Financial Modelling Excel

Deputy Presiding Officer

Independent Electoral and Boundaries Commission

Aug 2022 - Sep 2022 (1 month)

Managed polling station operations and led polling clerks, ensuring compliance with electoral laws and accurate vote counting during the election period.

Team Leadership Operations Management Regulatory Compliance Vote Counting

Enumerator

Kenya National Bureau of Statistics

Jul 2022 - Aug 2022 (1 month)

Conducted household interviews using digital tools to collect accurate census data while maintaining confidentiality and data integrity.

Data Integrity Interviewing Field Operations Data Entry

Intern

Embu County Government

Feb 2022 - May 2022 (3 months)

Assisted in data collection and analysis, built Excel and Power BI dashboards for performance tracking, and conducted demographic analyses to inform public health initiatives.

Excel Power BI Data Collection Reporting