Joseph Gordon-Mensah

Work History

Upwork

01.2023 - Current

Built a customer attrition random forest model that improved monthly retention significantly for clients likely to opt-out
Optimized machine learning pipelines and computational resources deployment strategies resulting in reduced processing times.
Automated repetitive tasks using scripting languages such as Python or R, saving time during the analytical process significantly.
Translated business requirements into data-driven solutions, providing value-added insights that directly contributed to the organization''s strategic goals.
Conducted feature engineering efforts to enhance model performance by creating new relevant variables from raw input data sources.
Cleaned transformed, and analyzed large datasets to uncover hidden trends and patterns for actionable insights.
Participated actively in interdisciplinary teams'' work integrating domain knowledge from marketing, sales or finance departments into the analytical process.
Optimized business processes for increased efficiency through detailed data analysis and visualization tools.

Boston Consulting Group

11.2023 - 12.2023

Completed a customer churn analysis for BCGX Analytics, demonstrating advanced data analytics skills, identifying essential client data and outlining a strategic investigation approach
Achieved an 85% accuracy rate in predicting customer churn
Conducted efficient data analysis using Python, including Pandas and NumPy
Employed data visualization techniques for insightful trend interpretation
Finished the engineering and optimization of a random forest model
Fulfilled a concise executive summary for the Associate Director, delivering actionable insights for informed decision-making based on the analysis.
Streamlined data collection processes by implementing efficient data mining techniques.
Optimized SQL queries for faster processing times, increasing overall productivity within the team.
Conducted thorough data validation and cleanup, ensuring accuracy and reliability of datasets used for analysis.
Enhanced data visualization capabilities for better decision-making with the use of advanced BI tools.

British Airways

10.2023 - 11.2023

Utilized advanced data analytics techniques including word clouds, to extract and analyze sentiment from customer reviews sourced from Skytraxx.com
Leveraged insights to inform strategic decision-making and enhance customer satisfaction initiatives at British Airways
Demonstrated proficiency in data mining and sentiment analysis to drive actionable business outcomes
Increased Customer satisfaction significantly by 20% with insights
Applied data mining expertise to extract actionable insights, enhancing service quality by 20%
Developed a predictive model aimed at comprehending the determinants influencing purchasing behavior.
Maintained documentation of all experiments performed including methodology used, results obtained along with their interpretation ensuring reproducibility at any given point of time.
Presented findings through clear visualizations and reports, facilitating effective communication with non-technical team members.