- Build and maintain data pipelines on Snowflake, improving ETL processes for analytics and product teams.
- Model and serve data through GoodData for reporting and dashboards.
- Ensure clean, reliable, well-tested data with SQL and Python across the platform.
Data Engineer @ Mobility46
Georgios
Malandrakis
I build data pipelines and keep data clean, reliable and ready for analytics and product teams. // Snowflake · GoodData · SQL · Python
8.89/10Degree GPA
88%Best model accuracy
2Professional data roles
10+Tools & technologies
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About
I'm a Data Engineer at Mobility46, working with Snowflake, GoodData, SQL and Python to build data pipelines, improve ETL processes, and keep data clean and reliable for analytics and product teams.
Previously I spent a year as a Junior Data Analyst at Douleutaras / YourHero, building interactive Tableau dashboards, analyzing key performance metrics, and working with cross-functional teams to support data-driven decisions — sharpening how I translate complex data into actionable insight.
I graduated from the Athens University of Economics and Business in Management Science & Technology (Software and Data Analysis), with a foundation in data analysis, machine learning and business intelligence — and an Erasmus+ semester at Stockholm University along the way.
Outside tech I'm a football referee — which keeps my decision-making and composure under pressure sharp. I'm driven by using data to solve real problems, and keen to keep growing in data engineering and analytics.
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Experience
Mobility46
Remote · Greece
Data Engineer
11/2025 – Present
Douleutaras (YourHero)
Cholargos, Athens
Junior Data Analyst
12/2024 – 11/2025
- Built and maintained interactive Tableau dashboards to support business decisions.
- Led the PostHog implementation, migrating product tracking from Google Analytics.
- Built AI-powered workflows with n8n and LangChain to generate Salesforce task summaries, streamlining Ops reporting.
- Automated processes (cashback history, supply analysis) with Python and Google Apps Script.
- Wrote complex SQL to extract, transform and validate business-critical data.
Athens Football Clubs Association
Hellenic Football Federation
Category Four Development Referee
11/2021 – Present
Quick decision-making, clear communication and composure under pressure.
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Skills
Data Engineering
- Snowflake
- ETL / pipelines
- Data modeling
- SQL
- Python
BI & Analytics
- GoodData
- Tableau
- Power BI
- PostHog
- RapidMiner
ML & Data
- Pandas
- Scikit-learn
- Matplotlib
- Seaborn
Databases
- Snowflake
- MySQL
- SQL Server
Languages
- Python
- SQL
- Java
- JavaScript
- HTML / CSS
Automation & Tools
- n8n
- LangChain
- Google Apps Script
- GitHub · Jupyter
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Education
Athens University of Economics & Business
Athens, Greece
B.Sc. Management Science & Technology — Software & Data Analysis
10/2020 – 02/2025
- Average grade: 8.89 / 10
- Key courses: Database Management Systems · Business Intelligence & Big Data Analytics · Business Analytics & Personalization · Applied Software Engineering · Big Data Management Systems
Stockholm University
Stockholm, Sweden
Erasmus+ — Stockholm Business School
01/2023 – 06/2023
Exchange semester — international perspective and collaboration.
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Projects
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IMDb Movies — Analysis & Predictive Modeling
Business Intelligence & Big Data Analytics
SQL ETL into a star schema; an 88% accuracy rating-prediction classifier; association-rule mining; and Power BI visualizations on IMDb data.
Exploring Airbnb Athens — Data Analysis
Applied Machine Learning
Analyzed pricing trends, availability and room distribution across neighborhoods in Python; built interactive maps and data-driven recommendations for hosts and investors.
Roget's Thesaurus — Word Embeddings
Applied Machine Learning
Clustering and supervised learning to classify words using Roget's Thesaurus and modern word embeddings; compared unsupervised vs. supervised methods against thesaurus categories.
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Awards & Distinctions
- 20201st Place — "The Great Moment for Education", Eurobank — highest mark in the general Greek national examinations, 4th High School of Nea Ionia.
- 20173rd Round, Panhellenic Mathematics Competition (Hellenic Mathematical Society).
- 20173rd Place, Panhellenic Student Competition "Lysias" — knowledge & search-engine management.
Volunteering — Member & adult member of the Scouts of Perissos (2010–2022): teamwork, leadership and communication through years of scouting initiatives.
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Get in touch
Open to data engineering roles and freelance — pipelines, analytics, dashboards. The fastest way to reach me is email or LinkedIn.