Open to opportunities

Collins Langat

@collinslangat2

Message

I am a data analyst turning raw data into actionable business insights.

Kenya

Message

What I'm looking for

I seek a collaborative data role where I turn complex datasets into actionable insights, build dashboards and models (Python, Excel, Power BI), and grow technically while contributing to data-driven investment or operational decisions.

I am a data professional with a B.Sc. in Mathematics–Statistics from the University of Nairobi who turns raw data into meaningful, decision-ready insights.

I have completed focused trainings in Python, SAS, and data engineering, and I use tools like R, SPSS, SQL, Excel and Power BI to perform EDA, time-series analysis and statistical testing.

In practice I have worked as a junior data analyst and as a customer satisfaction associate where I built interactive dashboards, automated Excel workflows and used Power Query & Power Pivot to consolidate metrics, improving reporting efficiency by up to 40%. I publish projects and articles on Medium and GitHub and regularly attend analytics meetups.

I collaborate well in teams, communicate complex findings clearly, and am driven to apply analytical thinking to inform investment and operational decisions while continuing to grow my technical expertise.

Experience

Work history, roles, and key accomplishments

Customer Satisfaction Associate

Ecom Services Limited

Jan 2024 - Jan 2025 (1 year)

Managed master Excel files and designed interactive dashboards to track customer service metrics, integrating Power Query and Power Pivot for consolidated analysis. Automated Excel workflows, improving data entry and reporting efficiency by up to 40%.

Excel Power Query Power Pivot Dashboarding Reporting Data Management Automation)

Junior Data Analyst

KNBS

Jan 2022 - Present (3 years 7 months)

Validated and analyzed survey data for the Kenya Demographic and Health Survey and compiled population projections for Bomet County. Performed extensive Excel-based data entry, editing, and NASSEP V sample frame updates to maintain the bureau's databases.

Excel Data Validation Time Series Analysis Data Entry Sample Frame Management SPSS Data Cleaning

Education

Degrees, certifications, and relevant coursework

University of Nairobi

Bachelor of Science, Mathematics and Statistics

2019 - 2023

Grade: Second Upper Division

Activities and societies: Relevant modules: numerical analysis, complex analysis, research project, time series analysis, hypothesis testing. Workshops/certifications: Denaco Analytics – Foundational Data Science with SAS (June 2023); Lux Tech Academy/Data Science East Africa – Data science and engineering with Python (April 2023); Mathematics Association of Nairobi University (M.A.N.U) Data Analytics training (April 2022) covering Python, Advanced Excel, R, SPSS, SQL.

Completed a Bachelor of Science in Mathematics and Statistics (Second Upper Division) at the University of Nairobi, focusing on numerical analysis, complex analysis, time series analysis, hypothesis testing and a mathematics research project, 2019–2023.