Eszter Stephen-Bujtor
Data Analyst | IT Service Quality | Project & Process Manager
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I am an experienced business operations professional, specializing in data analytics, quality assurance, and project & process management.
My mission is to provide exceptional quality service to my clients and I will not settle for less.
I am committed to using my skills to help your organization uncover meaningful insights from your data.
I am a genuine quality-minded person; accurate, organized, and extremely detail-oriented with a drive for excellence.
My core values are dedication and reliability.
In my projects, I always go the extra mile and take the initiative proactively.
Get in touch at eszter.bujtor@gmail.com
My Recent Projects
In this data exploration and visualization project, I used worldwide COVID-19 infection and death data and COVID-19 vaccination records stored in Excel.
Utilized SQL queries to extract data from 2 different tables to provide insights into the progression of the disease from when it was first recorded in 2020 to 4/30/2021.
Used JOIN clause to combine records from the two datasets and to query them.
By applying SQL VIEWS, I created virtual tables for data visualization in Tableau.
In Tableau, I created the following visual insights:
Comparison of infection, death, and vaccination rates globally and in Hungary (my home country)
Effect of vaccinations on infection and death rates globally and in Hungary
Top 10 countries with highest infection and death rates
Total number of infected and deceased people since the beginning of the epidemic to 4/30/2021 and the death rate of COVID-19.
I used two CSV flat data documents that I imported directly to Power BI to create a visual dashboard using Employee and Department data of a company. I also had to establish a relationship between the two imported datasets before I built the required visuals.
In this project, I built a visual dashboard using Employee and Department data of a company. Initially, I imported two CSV flat documents into an SQL Database and then created an SQL Direct Query command using an SQL Join clause. Finally, I used the created Direct Query to connect the data to Power BI and developed the required visuals.
Two CSV flat files were the input in this project to build a visual dashboard using Employee and Department data of a company. I imported the CSV documents into an SQL Database and used Power BI's SQL Server Database Import function to connect to the data to develop the visuals.
In this project, I created a data analysis visual dashboard using the Sales data of a company. I applied data import from Excel into Power BI and data transformation in Power BI to display the right currency values. I used various charts to create a visual dashboard of the Sales data.
In this project, I built a data analysis report using Sales data for a company. I applied Excel statistical methods, calculations using formulas and Pivot Tables, slicers, and conditional formatting.
KPI Delivery and Business Efficiency project at Safe Electric / RGII (Ireland)
(2017)
In this project, I aggregated the quarterly KPI performance report to CRU (Commission for Regulation of Utilities) and improved the report quality. The challenge entailed more than 100 KPI requirements, some of which we could not report, or our reports were inaccurate. I investigated the problematic KPI metrics and found ways to report them consistently and accurately. I used SAP Crystal reports and Excel to generate the KPI metrics from the database. At the end of the project, we achieved a 95 % completion rate and accuracy in the report, with significant performance improvements in two main KPIs. Additionally, I compiled a reporting manual to ensure future reports maintain consistency.
Training and Education
Certifications
ISO 9001:2015 Lead Auditor
ISO 20000 Lead Auditor
ITIL Intermediate V3 Continual Service Improvement
ITIL Intermediate V3 Service Operation
ITIL Foundation V3
Prince2 Foundation
Education
Eötvös Lóránd University - Budapest, Hungary
Master’s Degree - Profession of German Language and Literature
Bachelor’s Degree - German Teacher
Professional Development Activities
In 2024, I completed a 14-week Data Analytics training at Goodwill University (Goodwill Industries of the Southern Piedmont), enhancing my skills in advanced Excel, SQL, Power BI, Tableau, and Python.
In 2018, I completed the Effective People Management training organized by DCM Learning in Dublin, Ireland.
In 2017, when working in an Assistant Quality Manager position, I received an additional assignment to lead the KPI Delivery and Business Efficiency project.
In 2015, I completed a Process Management training at Vincotte International Hungary.
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