Work experience

05/2017 - Present Data Analyst, Analytics Department, Intelen Inc, Athens

Design, develop and maintain analytics app (R Shiny) for the following purposes: data visualisation, statistical results, simulation, KPI monitoring, customer scoring & segmentation, predictive modelling, etc.
Use supervised and unsupervised machine learning methods to optimize customer experience, revenue generation and other business outcomes
Enhance customer experience building recommender systems for personalized services
Develop and automate reporting processes
Define, measure and monitor KPIs
Design new data-driven business products

07/2016 - 05/2017 Data Scientist, Credit Risk Department, ICAP Group, Athens

Prepare the thesis “Storage of Default Characterization Data”, as part of the M.Sc. in Business Analytics, Athens University of Economics and Business
Support regulatory requirements on reporting and monitoring of ICAP’s credit assessment evolution data to regulators
Support reporting to European Rating Platform (ERP/RADAR), the platform maintained by ESMA on credit rating agencies data
Design, develop and maintain statistical procedures and tools (automated and semi-automated procedures) for the monitoring of credit assessment evolution in SAS and R softwares, as well as, data management and automation activities
Business process modelling

01/2015 – 10/2015 Researcher, Telephone Research Department, Metron Analysis S.A., Athens

Participate in the conduction of various research projects in the section of the telephone survey department.

09/2014 – 06/2015 Professor of Mathematics, Freelancer, Athens

Improved a high school student’s mathematical skills by preparing him for the school exams.

Education

10/2015 - 01/2017 M.Sc. in Business Analytics, Athens University of Economics and Business

Degree with Distinction, 8.86 / 10

Field Study Project (Master Thesis) conducted in ICAP Group:
Development of automated system in R for the following activities on default characterization data:

Data cleansing, exploration and transformation
Statistical reporting and visualization
Creation of historical database and integration in optimised data schema

Part of master projects:

Data warehousing, Data management, ETL (MySQL, MemSQL, Java, R)
Statistical analyses with R using various methods, e.g. regression, classification, clustering, LASSO, PCA, Naïve Bayes, etc.
Application development using big data tools like Hadoop, Spark, Redis, MongoDB and Neo4j (Java, Scala, R)
Data Mining, Large Scale Optimization, Visual Analytics, Recommender Systems, Business Analysis

10/2008 – 09/2013 B.Sc. in Mathematics, University of Athens

Main topics of interest: Probability Theory, Operations Research, Stochastics, Statistics

Technical skills

R, Python, Base SAS, Java, Scala, MATLAB
Experience with SQL and NoSQL databases including MySQL, PostgreSQL, MemSQL Spark, Hadoop, MongoDB, Cassandra, Redis, Neo4j
Familiarity with markup languages including Markdown, HTML, XML
Data Mining, BI and Visualization tools: Pentaho, SAS Enterprise Miner, Rapid Miner, Spotfire, IBM Watson
Business Modelling tools, e.g. ARIS

Professional development

07/2018 - 08/2018 Data Scientist with Python, Datacamp Career Track

02/2018 - 03/2018 Data Scientist with R, Datacamp Career Track

02/2018 - 04/2018 R Programmer, Datacamp Career Track

02/2018 - 04/2018 Data Analyst with R, Datacamp Career Track

01/2017 - 03/2017 Mastering Software Development in R, Coursera Specialization (2 out of 5 courses completed)

Courses/Certificates:

08/2016 - 02/2017 Big Data, Coursera Specialization (5 out of 6 courses completed)

Courses/Certificates:

03/2015 - 05/2015 Analytics Edge, MIT - edX course

02/2015 - 05/2015 Introduction to Probability - The Science of Uncertainty, MIT - edX course