Joylynn Mumbi Ngari

About

Operations data professional with 3+ years of experience collecting, validating, and reporting on logistics and supply chain data. Skilled in building dashboards, running quality checks, and supporting management decisions through accurate operational reporting.

Experience

• Senior Business Intelligence Analyst
  Phoenyx Logistics
  Feb 2025 – Present
• BI Analyst
  Siginon Logistics
  May 2024 – Aug 2024
• Data Analyst — Operations Assistant
  Mar 2023 – Aug 2023

Education

• Data Analysis Certificate
  ALX Africa
  Data Analysis · Oct 2025 – Feb 2026
• Diploma
  Kenya School of Revenue Administration
  Customs Administration · Sep 2019 – Nov 2022

Skills

• SQL
• Power BI
• Tableau
• Data entry
• Power Query
• VLOOKUP
• Data validation
• Database Management
• Data Governance
• Excel
• Data Reconciliation
• Data Cleansing
• Data Quality Assurance
• Zapier
• Power Automate
• Dashboard Design
• Ad Hoc Reporting
• PivotTables
• XLOOKUP
• joins
• Ctes

Courses & certifications

• Data Analysis Certificate · ALX Africa · 2026