Learn Data Skills
Beta
Konstantinos Klappas

Konstantinos Klappas

Data Scientist

ASD

Technologies

My Portfolio Highlights

My New Course

Introduction to Python

Analytical daredevil, fearlessly diving into the abyss of data complexity.

My Work

Take a look at my latest work.

course

Introduction to R

course

Introduction to Python

course

Intermediate Python

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.

Hellas Direct | Jul 2024 - Present

Business Intelligence Analyst - Operations

• Constructed a claims forecasting model utilizing machine learning algorithms, improving prediction accuracy by 18% compared to previous statistical methods, and reducing overestimation of expenses. • Collaborated with cross-functional teams to identify areas for process improvement, leading to the implementation of new workflows that increased operational efficiency by 15%. • Streamlined and automated the extraction, transformation, and loading (ETL) processes for Power BI reports, reducing data refresh times by 60% and ensuring data accuracy across all operational dashboards
Show More

Public Group | Apr 2023 - Jun 2024

Data Scientist

• Managed the development and maintenance of forecasting models, improving the accuracy of predictions by 8 % and reducing the risk of supply chain disruptions and operational inefficiencies. • Conducted detailed analysis of supply chain data to identify costsaving opportunities, resulting in the implementation of initiatives that reduced operational expenses by 40.000 e annually. • Created easy-to-understand training materials and delivered training sessions to the operations team on how to use the new tools and reporting systems, supporting 20+ employees

Public Group | May 2022 - Apr 2023

Junior Reporting Analyst

• Building data-driven insights with Power BI, collaborating with Commercial, Supply Chain, CRM, and Finance departments. • Developing SQL skills and using Microsoft SQL Server to generate reports and analyze data. • Streamlining report management and accessibility through maintenance of Power BI Report Server and Microsoft Report Builder for paginated reports. • Expanding knowledge in DAX and tools like DAX Studio and Tabular Editor to enhance data analysis and maintain OLAP Cube usage and performance. • Making an impact through automation of report processes, improving communication with suppliers, and efficiency for the Commercial department. • Delivering insightful and automated email reports for the Supply Chain and Retail Network departments, helping drive their daily success.

Estia Media Investments S.A | Sep 2020 - May 2022

Data Analyst

• Building premises databases • Created a Newspaper Distribution Program using MS Access • Monthly presentation of distribution and sales results to Stakeholders

Estia Media Investments S.A | Sep 2020 - Mar 2021

Assistant To Human Resources Director

• Payroll • Labor Law Advisor • Hiring and Dismissing Staff

Estia Media Investments S.A | May 2019 - Sep 2020

Executive Assistant

• Distribution, Sales and Financial Events Analyst • Facility Maintenance Supervisor • Secretarial Services

Greek Army | Sep 2017 - Jun 2018

Private

Worked as a secretary for the First Office of 441 ABYY military base. Date of dismissal : 18th of June 2018

Elliniki Metafrastiki Etairia | Aug 2017 - May 2018

Translator

Replicated flow, style and overall meaning of original texts.

Katerina Leventi's Law Office | Oct 2016 - Jul 2017

Secretary

• Scheduled appointments and conducted follow-up calls to clients. • Handled daily scheduling tasks and provided administrative support for the entire office.

ELEPAP -Rehabilitation for The Disabled | Feb 2015 - Jan 2016

Accounting Intern

• Analyzed account information and reconciled financial discrepancies to maintain records integrity and compliance. • Applied principles of accounting to analyze financial information and prepare financial reports.

My Education

Take a look at my formal education

Master of Science - MS, Data Science and Machine Learning  · (JulyHellenic Open University | 2024
Master of Business Administration - MBA, Accounting  · (September 2018 - JulyNational & Kapodistrian University of Athens | 2020
Bachelor's degree, EconomicsNational & Kapodistrian University of Athens | 2017

Powered by

  • Work
  • Courses
  • Experience
  • Education
  • Create Your Data Portfolio for Free