Christodoulos Santorinaios
I am a Data engineer with 5 years of experience implementing IT solutions. Able to effectively communicate solutions to technical and non-technical stakeholders by leveraging sales experience. Contributed in large-scale banking and insurance projects. Participated in Horizon 2020 projects with a total budget of more than €25 million. Performed ETL on millions of records collected from databases, web scraping, APIs, and spreadsheets. Migrated company’s ticketing system to Jira, resulting in a 40% productivity improvement. Taught 30+ students in the field of data analytics.
Experience
Data Engineer
- Worked in large-scale bank and insurance projects, reconciling data across hundreds of tables in IBM Db2, MS SQL Server, Azure SQL and legacy systems like AS/400, IBM IIAS(Netezza)
- Contributed to Azure Cloud migration activities, managed data integration, workflows and analytics using tools such as Azure Data Factory, Databricks, Synapse and Apache Airflow
Software Developer/Consultant - Researcher
- Participated in various H2020 projects
- Prepared deliverables and conducted quality control on documents
- Developed application in .NET framework according to customer requirements
Software Consultant
- Provided installation, setup, configuration and consulting services to Maritime ERP projects
- Trained customers to gain the most out of their personalized solution
- Provided product and customer support and performed testing and documentation of the company’s Maritime ERP software
- Prepared reports and dashboards in PowerBi to visualize and extract insights from data coming from various sources(SQL Server, web services)
- Setup and configured cloud Jira solution and migrated company’s custom ticketing system
IT Support Engineer @ Computer Operations Department
- Configured hardware, devices and software to set up workstations for employees and meteorological stations
- Used virtual environments with customized meteorological software for computer operation purposes
- Retrieved meteorological data from relational databases and developed user-oriented web pages using front-end languages
Sales Agent
- Responded to customer requests for products and services and promoted available energy solutions
Sales Agent
- Promoted available energy solutions and services to customers based on their needs
- Surpassed sales goals by 15% and achieved highest sales performance in the team for January 2017
Education
Athens University of Economics and Business
Grade: 7.5/10 "Very Good"
University of Patras
Grade: 6.63/10 "Very Good"
Arsakeio School in Psychiko
Grade: 19.0/20 “Excellent”
Skills
Projects
Tic Tac Toe
Simple tic tac toe game that the user can choose how many rows and columns will be in his board.
Python, Tkinter
leChocolat Website
Website for a fictional chocolate company. Created as a project on GFOSS' Web Design & Web Developent course.
HTML, CSS, JavaScript, Bootstrap
Guess the color
Color guessing game based on RGB values! Created as a project on Udemy's Web Development Bootcamp course
HTML, JavaScript
Reverse Polish Notation Calculator
RPN Calculator created as part of the Object-Oriented Programming course at the Electrical & Computer Engineering department of the Univeristy of Patras.
Java
Ecelerometer
Step counter Android app created as part of my thesis.
Java, Android
Covid Visualizer
Covid Visualizer application based on the SIR model
Python, Tkinter
Interests
When I'm not working on the latest projects, I enjoy spending most of my time exploring the nature, free climbing and going for long walks. I, also, love taking photographs of the places i visit and make fond memories by meeting new and interesting people and getting to know different cultures.
When I stay in, i like being on top of everything technology related, blog about interesting tech solve coding and math riddles and playing the occasional video game to blow some steam off. I'm, also, active in various forums in order to exchange ideas and have a broader understanding of the IT field.
Lately I am into running and hopefully I'll be able to run my first marathon soon enough.
Certifications
Honors
July 2020
Winners Selected for Foundations Course | Microsoft Azure Machine Learning Scholarship
Udacity
Got selected to participate in the Foundations Course for the Microsoft Azure Machine Learning Scholarship organized by Udacity and Microsoft. In this course, I learned how to use Microsoft Azure Services for solving complex problems using Machine Learning. I deployed various models on the cloud, used both supervised and unsupervised learning techniques and automated processes via pipelines. In addition, many of the potential implications and challenges posed by ML and AI were discussed, as well as principles for building responsible AI. Also, participated in the Slack Community where i learned a lot as i had the chance to communicate with people with different backgrounds, share knowledge, solve problems and have fun.
June 2020
TechLabs #codeathome Bootcamp Challenge Winner
TechLabs
Worked as part of an indisciplinary team to create a guide for the corona virus pandemic. On our "Covid-Master" platform the user gains easy access to straightforward information about the current precautionary measures, local regulations and relevant health information. My task as a team member was to give the user an overview of the situation with various visualizations. To accomplish that i used different data science tools, mainly Python packages(pandas, seaborn, folium) and created detailed plots and choropleth maps. It was a really enriching experience being part of this project as i got to work with people from various countries with different backgrounds (UX design, web development) and used multiple tools to brainstorm and collaborate(Mural, Figma, Slack).
April 2020
Project Future, Powered by ReGeneration Academy, Finalist | Data & Decision Sciences
Code.Hub
I was among the 7% of people selected from a pool of 3500 candidates after a process involving resume filtering, a game-based assessment and a live assessment/interview. This program gave me the chance to train on Data Science and acquire solid experience on a variety of programming languages and tools (Python, SQL, Microsoft PowerBi, Microsoft SQL Server, ETL). For the capstone project we analysed transactions' data and we were asked to make predictions about the users' plan, cluster them based on heuristic and machine learning techniques and use our creativity to predict customer churn and offer solutions to reduce it.
February 2010
Python Project Award, Introduction to Python course
Electrical and Computer Engineering Department, University of Patras, Greece
For this project our team created a python game using the PyGame Python library. It was a really fun experience working on this and the result was rewarding as we were one of the teams to get an award and have the chance to present in front of a big audience.