// Data_Analytics_Portfolio

Periklis
Andrianos

Junior Data Analyst Software Engineering Student Retail Gaming Expert

Applied Mathematics foundation meets business intuition. Turning raw data into actionable insights using Python, SQL, Power BI and Excel. Focused on data storytelling, business impact, and real-world analytics projects.

Download_CV ↓ View_Projects → View_GitHub →
Periklis Andrianos
6
Data Projects
4+
Tools used
BSc
Applied Mathematics
IT
Professional Diploma

// About_Me

From numbers
to insights


I am a Junior Data Analyst with a solid foundation in Applied Mathematics and practical expertise in SQL, Python and Power BI.
I combine analytical rigor with business experience gained through years in the retail gaming industry.

Currently pursuing a degree in Software Engineering to bridge the gap between data analysis and technical implementation — enabling me to not just find insights, but build the pipelines and tools around them.

My entrepreneurial background means I always think about what the business impact actually is — not just what the data says, but what to do about it.

Present
Software Engineering Student
Vocational Training Center — Piraeus
2012-Present
Math Tutor | Self-employed
Salamina, Attica
2013-2025
Business Manager | Allwyn agency
Salamina, Attica
2012-2021
Math Teacher | SPOUDASTIRIO M.E.
Salamina, Attica
2005-2012
Applied Mathematics
University of Crete — Greece

// Toolkit

Skills, tools & certifications

The technologies and methodologies I use to turn raw data into business value.

Tools
Python75%
SQL(MySQL)80%
Power BI65%
MS Excel85%
R50%
Skills
Pandas / NumPy80%
Joins / CTEs / Views70%
Matplotlib / Seaborn65%
Pivot Tables / Charts / Dashboards90%
Business Intelligence75%
Certifications
IBM Data Analyst Professional Certificate Coursera / View Credential
PCEP | Certified Entry-Level Python Programmer Python Institute / View Credential
SQL Intermediate HackerRank / View Credential

// My_Work

Featured Projects

End-to-end data projects from analysis to visualization — all available on GitHub.

OPAP Store Analysis

Python · SQL · Power BI

Betting Store Analysis & Insights

Combining my 12 years of experience as an OPAP agency owner I extract real data and created an end-to-end pipeline that answers critical business questions.

SQL Python PowerBI
View on GitHub →
SQL E-commerce Analysis

SQL · Data Engineering

E-commerce RDB for Stakeholders

Designing and analyzing an e-commerce database using SQL. Data generated with AI prompt. It includes database schema creation, data insertion, and analytical queries. The final stage has VIEWS for 5 different stakeholders roles.

MySQL CTEs Views
View on GitHub →
EuroLeague Analysis In Progress

Python · Sports Analytics

EuroLeague Analysis

Statistical analysis of EuroLeague basketball data — player performance, team metrics, and predictive modeling.

API SQLite Pandas Seaborn
View on GitHub →
Python Stock Market Simulator

Python · GUI · Visualization

Stock Market Simulator

A desktop stock market simulator built with Python, featuring a graphical user interface (GUI), CSV-based data logging and real-time visualization with Matplotlib.

Python Tkinter Matplotlib
View on GitHub →
Excel E-Commerce Dashboard

MS Excel · EDA · Dashboard

E-Commerce Dashboard

Interactive Excel dashboard with pivot tables, dynamic charts, and slicers to explore e-commerce KPIs at a glance.

Excel Pivot Tables Slicers
View on GitHub →
R Project

R · Analytics

Sales Data Analysis in R

This project analyzes sales data for 3 products over time. The goal is to clean the dataset, handle missing values, and extract key business insights using R.

R dplyr ggplot2
View on GitHub →

// Contact

Let's connect

Open to collaborations, data projects, and opportunities in analytics or software development.

Location
Salamina, Athens — Greece
Phone
+30 698 377 0592
Email
periandrianos@gmail.com