Open to opportunities

MaryJoy Kinyua

@maryjoykinyua

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BI Developer and Data Analyst with expertise in SQL and Python.

Kenya

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What I'm looking for

I am looking for a role that fosters innovation, encourages professional growth, and allows me to leverage my data skills to drive impactful business decisions.

I am a dedicated BI Developer and Data Analyst with a strong passion for leveraging data to drive business decisions. With expertise in SQL, Python, Power BI, and Tableau, I have successfully delivered comprehensive BI reports that have improved reporting efficiency by 40%. My experience includes building ETL pipelines that ensure 99.5% data accuracy and creating interactive dashboards that have boosted operational efficiency by 15%.

In my current role at Equity Bank Limited, I have developed and optimized complex SQL queries, automated performance dashboard creation, and trained staff on data literacy. My commitment to enhancing data-driven decision-making is evident in my ability to transform raw data into compelling visual stories that influence strategic business decisions. I thrive in environments that challenge me to innovate and optimize processes, and I am passionate about continuous learning and professional growth.

Experience

Work history, roles, and key accomplishments

Current

Data and Analytics | BI Developer

Current

Equity Bank Limited

Oct 2023 - Present (1 year 7 months)

Developed and optimized complex SQL queries and stored procedures, improving data retrieval efficiency by 40% and ensuring timely ETL of large datasets. Built end-to-end data pipelines using ODI, Python, and PowerBI, supporting real-time decision-making for senior leadership. Automated performance dashboard creation, reducing manual reporting time by 60% and enhancing KPI tracking efficiency acros

SQL ODI Python Power BI Data Analysis ETL Data Visualization Reporting

Business Intelligence Developer

E&M Technologies

Jan 2022 - Oct 2023 (1 year 9 months)

Delivered 30+ comprehensive business intelligence reports across 6 departments, enabling data-driven decision-making and improving reporting efficiency by 40%. Designed and implemented 10+ ETL pipelines using Talend Open Studio, integrating data from Oracle and Excel into MariaDB, ensuring 99.5% data accuracy. Applied advanced data visualization techniques in PowerBI and Tableau, uncovering key bu

Business Intelligence ETL Oracle MariaDB Power BI Tableau Python Data Visualization SQL

Education

Degrees, certifications, and relevant coursework

Jomo Kenyatta University of Agriculture and Technology

BSc, Actuarial Science

2017 - 2022

Studied Actuarial Science, gaining a strong foundation in statistical analysis, probability, and financial mathematics. Developed skills in data analysis and modeling relevant to risk assessment and financial forecasting.