Konstantina Mavrodimitraki

Work experience

• Senior Solutions Architect - Team Lead Sep 2022 - Present
  Amazon Web Services (AWS)

  Helping customers navigate their cloud journey and design robust cloud platforms that deliver value to end-users.

  • Working backwards with customers to architect and implement scalable cloud solutions using AWS services
  • Leading technical discussions and providing guidance on cloud best practices, data analytics, and machine learning implementations
  • AWS Community Guardian supporting local AWS communities by providing technical guidance, mentoring, and fostering knowledge sharing within the AWS ecosystem

  Skills: AWS Services, Cloud Architecture, Data Analytics, Machine Learning, Team Leadership

• Team Lead Data Engineer Mar 2020 - Jul 2022
  INTRASOFT International

  Led data engineering teams across multiple projects, focusing on building scalable data platforms and ETL solutions. Responsible for team leadership, technical architecture decisions, and client engagement.

  • Big Data Analytics Project (Morocco Telecom): Led the data engineering team for a telecommunications company's analytics platform. Created end-to-end ETL flows using Impala and Spark, with data ingestion through Bash, Sqoop and Spark jobs. Implemented scheduling via Apache Airflow and Cron jobs.

  • ValueBoard Credit Risk Solution (WEMETRIX): Developed ETL flows in Python using Pandas library. Implemented dimension modeling in PostgreSQL as data landing area, with final data structure in MongoDB accessed through NodeJS API. Built on Multi-tenancy Architecture using Azure Cloud platform.

  Skills: Apache Spark, Impala, Python, Pandas, PostgreSQL, MongoDB, NodeJS, Apache Airflow, Azure Cloud, Big Data Analytics, Team Leadership

• Senior BI/ETL Engineer Feb 2019 - Mar 2020
  TRASYS GREECE

  Participated in the migration project of the DWH of ECHA (European Chemical Agency) from OWB (Oracle Warehouse Builder) to ODI (Oracle Data Integrator).

  • Responsible for ETL operations, data analysis and performance tuning tasks in Oracle 11g and Oracle 12c

  • Creation of scripts in Python when needed for data processing and automation tasks

  Skills: Oracle Database, Oracle Data Integrator (ODI), Oracle Warehouse Builder (OWB), ETL, Python, Performance Tuning

• Senior BI Engineer Jan 2017 - Feb 2019
  UniSystems

  Responsible for Business Intelligence activities including analysis and development of ETL processes. Outsourced to OTE working on the biggest database in Greece, in the Data Warehouse of fixed telephony.

  Skills: PL/SQL, Oracle Warehouse Builder, SAP Business Objects, Data Warehousing, ETL

• Senior Consultant Aug 2012 - Dec 2016
  Oracle Financial Services Software

  Analysis & Development of ETL processes and financial reports. Extensive international travel working with foreign banks across Europe and Middle East including Bank Audi of Lebanon, Intesa Sanpaolo Bank Albania, Cyprus Development Bank.

  Skills: PL/SQL, OBIEE, BI Publisher, FLEXCUBE, Financial Reporting, ETL, Dimensional Modeling

• Automation Engineer Nov 2011 - Aug 2012
  Siemens Enterprise Networks

  Development of automation testing scripts and handling configuration and deployments.

  Skills: Java, TestNG Framework, Automation Testing, Configuration Management

• Software Engineer Feb 2010 - Nov 2011
  Velti

  Software development using Java and various frameworks. Responsible for deployments, automation and configuration.

  Skills: Java, Spring Framework, Flex, Software Development, Deployment Automation