Emmanuel Sinja

Data Analyst with a background in Statistics and Programming and experience in SQL, BigQuery, Python, Excel, and Looker Studio. Skilled in data cleaning, dashboard development, ETL workflows, and KPI reporting. Experienced in analysing operational and financial data, automating reports, and turning business needs into useful insights.

Revenue Analyst - Xpress Road Rescue

(2025-09)

• Built Looker Studio dashboards to track revenue, vendor costs, profitability, service completion, and operational KPIs.
• Developed automated ETL workflows using Python, Pandas, SQL, and Apache Airflow to improve data quality and reporting.
• Optimised SQL queries and automated reports, reducing manual reporting effort by 75% and improving reporting accuracy by 30%.

Business Intelligence Analyst - Freelance

(2025-06 - 2025-08)

• Developed SQL queries and used Python and Pandas to clean, validate, and analyse datasets.
• Built dashboards and automated reports based on client requirements, helping track business performance and identify trends.

Junior Data Analyst - Safer Group

(2023-11 - 2025-06)

• Developed dashboards using Looker Studio, Tableau, and Google Sheets to monitor business KPIs and operational performance.
• Used SQL, Python, and Excel to analyse data, improve data quality, and automate recurring reports.

Delivery and Quality Assurance Lead - Statistics Without Borders

(2024-12)

Collaborate with project teams to review and ensure the quality of SWB projects, ensuring proper project methodologies are followed and overseeing the project through its entire life cycle, while contributing to ongoing quality assurance efforts within the Delivery and Quality Assurance (DQA) team.

Bachelor of Science - Statistics and Programming - Kenyatta University