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Eleftherios Diamantidis

Eleftherios Diamantidis

Master Student

Tilburg University


Data enthusiast, turning information into intelligence with a smile.

My Work

Take a look at my latest work.


Exploring NYC Public School Test Result Scores


Investigating Netflix Movies


Case Study: Analyzing Customer Churn in Excel


My Certifications

These are the industry credentials that I’ve earned.

Other Certificates

Python Introduction to Python

Python Intermediate Python

Python Writing Efficient Python Code

Python Python Data Science Toolbox-Part 1

Python Python Data Science Toolbox-Part 2

Python Python Fundamentals

Python Data Manipulation with pandas

Python Joining Data with pandas

R Introduction to R

R Intermediate R

R Introduction to Writing Functions in R

R Object-Oriented Programming with S3 and R6 in R

Excel Introduction to Excel

Excel Data Preparation in Excel

Excel Data Visualization in Excel

R R Programming

Excel Data Analysis in Excel

Excel Case Study-Analyzing Customer Churn in Excel

Python Introduction to Statistics in Python

R Writing Efficient R Code

DataCamp Course Completion

Take a look at all the courses I’ve completed on DataCamp.

My Work Experience

Where I've interned and worked during my career.

Formula Investment Household LTD - Royal Jordanian Airlines | Aug 2022 - Present

Accountant Assistant

• Registration of documents in an accounting platform (PBS Prosvasis) and connection to myData • Compilation of Financial Statements • Creation of E3 Tax Returns, Periodic VAT Returns
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Simbiosis | Nov 2021 - Jul 2023

Consultant, Economist

• Drafting and monitoring of business investment plans in the local LEADER program in North Evia. Study, design and development of a techno-economic study for the viability of the business. • Application for support to the "Businesses affected by the pandemic and natural disasters" program in Evia. • Application for support and application for payment of aid to the program "Grant to aid self-employed lawyers for the purchase of electronic equipment." • Application for support to the "Investments in Winemaking Enterprises" program • Management of websites and posts on OEF websites in the context of the communication promotion of the 2021-2022 work program of OEF • Website construction in a WordPress environment and design. Connection with google analytics, creation of social media. Annual maintenance and control for the smooth operation of the site, update to the theme and plugins as well as the php versions of the Server

My Education

Take a look at my formal education

Pre-Master in Data Science and SocietyTilburg University | 2024
Bachelor in Banking and Financial ManagementUniversity of Piraeus | 2022

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