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Benard Mwinzi

@benardmwinzi

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Google-certified Data Analyst with 4+ years of remote experience, specializing in Python, SQL, and Tableau.

Kenya

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What I'm looking for

I’m looking for a Data Analyst/BI role where I can deliver clean, analysis-ready datasets, protect data privacy, and turn findings into clear dashboards and reports—while helping teams make faster, better decisions.

I’m a Google-certified Data Analyst with 4+ years of experience in data management, statistical analysis, and survey data workflows. I hold a BA in Economics & Mathematics (minor in Statistics), and I bring a strong focus on rigorous data quality, privacy, and timely reporting.

In freelance projects with Upwork clients across multiple industries, I’ve managed complex datasets across 8+ projects, producing clean, analysis-ready outputs and structured M&E-style benchmarking reports. I use Python, R, SQL, and Excel to clean, transform, and validate data, and I build clear visualizations in Tableau and Power BI to help non-technical stakeholders make decisions.

I also support survey and people analytics work—mentoring recent graduates at Blossom Academy and delivering an employee attrition benchmarking report for a US-based people analytics firm. Whether I’m anonymizing sensitive data, designing ER diagrams to clarify data architecture, or writing analysis-ready reports, my goal is always the same: turn raw information into trustworthy, actionable insights.

Experience

Work history, roles, and key accomplishments

Current

Data Analyst

Current

Upwork

Jan 2021 - Present (5 years 6 months)

Managed and analyzed complex datasets across 8+ client projects, ensuring data integrity and delivering analysis-ready outputs. Produced M&E-style benchmarking reports, performed data cleaning/transformation, and created clearer visualizations for stakeholders.

Data Analysis Data Cleaning Data Reporting data transformation Data Visualization Python R SQL Excel SPSS Tableau

Data Analytics Mentor

Blossom Academy

Feb 2025 - Jun 2025 (4 months)

Provided hands-on mentorship to data analytics graduates to support their transition into independent freelance careers. Coached mentees on Upwork profile building, proposal writing, and securing first client engagements, and helped refine the mentorship curriculum.

Mentorship Data Analysis SQL Freelance Consulting Proposal Writing

Data Analyst (Contract)

Knoetic, Inc.

Oct 2023 - Jan 2024 (3 months)

Conducted employee attrition analysis for a people analytics firm using a dataset from 630 start-up respondents across the US and Europe. Delivered an Employee Attrition Benchmarking Report with Tableau/Excel visualizations and ensured data anonymization and privacy compliance.

Anonymization Data Privacy Compliance Data Visualization Tableau Excel Python Technical Writing

Data Collection Enumerator

TIFA Research Firm

Mar 2016 - Apr 2016 (1 month)

Collected and managed 2,000+ survey responses from Machakos County residents, ensuring completeness and accuracy. Applied real-time data validation to support zero-error data quality and consolidated survey data from multiple enumerators for timely reporting.

Survey Data Validation Data Consolidation Data Quality Assurance M&E Survey Support