Billernest Maina
@billernestmaina
Geospatial Data Scientist turning spatial data into actionable insights for measurable impact.
What I'm looking for
I’m a Geospatial Data Scientist with expertise in GIS, spatial analysis, field data collection, and remote sensing. I turn complex geospatial and non-spatial datasets into actionable insights that strengthen decision-making.
I’ve supported large-scale programs through data verification, electronic data collection (ODK-based systems), GPS mapping, and rigorous data-quality audits across multiple counties. I collaborate with multidisciplinary teams and translate field findings into clear technical summaries and reports for program improvement.
In my recent work, I built and analyzed datasets of 50,000+ records using SQL, Python, Excel, and PowerBI to identify funding gaps, service coverage trends, and equity issues. I also develop interactive performance-monitoring dashboards for near-real-time learning and apply machine learning techniques (regression, classification, NLP, and unsupervised learning) through my current Data Science studies.
Experience
Work history, roles, and key accomplishments
Technical & Research Analyst
Clinton Health Access Initiatives (CHAI)
Dec 2024 - Dec 2025 (1 year)
Supported field-based monitoring and implementation research for the national CHIS program across 10+ counties to strengthen community-level disease surveillance and reporting. Conducted data verification and routine quality audits, using ODK-based electronic data collection to submit high-quality quantitative data to centralized servers.
Data & Research Analyst
Development Initiatives (UK)
Mar 2023 - Sep 2024 (1 year 6 months)
Conducted mixed-methods implementation research combining 50,000+ record quantitative datasets with stakeholder interviews and field validation to assess health and social-sector program performance. Built and analyzed datasets in SQL, Python, Excel, and Power BI, developing interactive performance monitoring dashboards for near-real-time learning.
Freelance Consultant
Freelance
Jan 2019 - Sep 2023 (4 years 8 months)
Provided product and development support by documenting customer feedback and requests and contributing to speech work across multiple dialects and accents. Implemented process and quality improvements to reduce handling time and improved output through workflow optimization and technical writing.
Motor Vehicle Electrician Intern
Kenyatta University
May 2023 - Jul 2023 (2 months)
Diagnosed and repaired automotive electrical systems by installing and troubleshooting components including alternators, starter motors, wiring, horns, lights, and turn signals. Performed maintenance on battery and charging systems, inspected electrical connections, and replaced relays, fuses, and circuit breakers.
Geospatial Data Analyst
Water Resources Authority
Jul 2017 - Sep 2017 (2 months)
Collected spatial data from field stations and created maps, performing analysis of streamflow and water quality data. Updated monthly water resources registers and produced Lake Naivasha–Nakuru sub-region maps using ArcGIS 10.5, including data entry of RGS discharge, rainfall, and evaporation.
Education
Degrees, certifications, and relevant coursework
ALX Africa
Data Science Program, Data Science
2025 -
Built end-to-end data analysis workflows using Python, SQL, Power BI, and Google Sheets. Cleaned, prepared, and analyzed datasets, designed MySQL databases for analytics, and applied machine learning models for regression, classification, NLP, and unsupervised learning.
Kenya Christian Industrial Training Institute (KCITI)
Motor Vehicle Electrician (MVE), Motor Vehicle Electrical Systems
Studied and practiced diagnosing and repairing automotive electrical systems. Installed and troubleshot wiring and components such as alternators, starters, alarms, horns, lights, and performed testing and maintenance on batteries and charging systems.
Egerton University, Njoro-Main Campus
Bachelor of Science (B.Sc.), Geography
2014 - 2018
Earned a B.Sc. in Geography. Covered core geography studies during undergraduate coursework.
Miramar International College
Business Management Certificate, Business Management
Completed training in business management, including identifying market opportunities, challenges, and associated risks. Developed skills in planning timelines and budgets, conducting market research, and analyzing agricultural-industry trends to support business decisions.
ALX Africa
Data Analysis Program, Data Analysis
Analyzed and visualized complex datasets using Excel, Power BI, and Python to generate actionable insights. Built and queried relational databases with MySQL, designed datasets and dashboards, and applied data cleaning and transformation techniques.
Kiburu Boys High School
Kenya Certificate of Secondary Education (KCSE), Secondary Education
2011 - 2013
Completed secondary education leading to the Kenya Certificate of Secondary Education (KCSE).
Availability
Location
Authorized to work in
Job categories
Skills
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