Simona Mladenova

Data Engineer at Holiday Extras
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Contact Information
us****@****om
(386) 825-5501
Location
Greece, GR
Languages
  • English Full professional proficiency
  • Greek Native or bilingual proficiency
  • Bulgarian Native or bilingual proficiency

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Credentials

  • Cloud Data Engineering
    Duke University
    Apr, 2022
    - Sep, 2024
  • Apache Airflow
    Marc Lamberti
    Jan, 2022
    - Sep, 2024
  • Advanced SQL Server Masterclass For Data Analysis
    Udemy
    Oct, 2021
    - Sep, 2024
  • Apache Spark - Hands On with Big Data
    Sundog Education
    Apr, 2021
    - Sep, 2024
  • Natural Language Processing with Classification and Vector Spaces
    deeplearning.ai
    Jan, 2021
    - Sep, 2024
  • Machine Learning: Python In Data Science
    Udemy
    Oct, 2020
    - Sep, 2024

Experience

  • Holiday Extras
    • United Kingdom
    • Travel Arrangements
    • 300 - 400 Employee
    • Data Engineer
      • Dec 2021 - Present

      • Migrate on-premise databases to the cloud • Test driven development of custom Airflow DAG Factories/Operators and libraries • Develop, enhance and maintain ETL/ELT and CI/CD pipelines • Building transformations, scripts and migrations to multiple specifications and standards • Monitoring data streams & ensuring that all automated tasks are running smoothly Stack: Google Cloud Platform, Airflow, SQL, Python, Looker, dbt • Migrate on-premise databases to the cloud • Test driven development of custom Airflow DAG Factories/Operators and libraries • Develop, enhance and maintain ETL/ELT and CI/CD pipelines • Building transformations, scripts and migrations to multiple specifications and standards • Monitoring data streams & ensuring that all automated tasks are running smoothly Stack: Google Cloud Platform, Airflow, SQL, Python, Looker, dbt

  • Optasia
    • United Arab Emirates
    • Financial Services
    • 100 - 200 Employee
    • Big Data Engineer
      • Mar 2021 - Dec 2021

      • Designing and maintaining ETL pipelines • Developing and maintaining libraries for batch processing & ingestion of large volumes of data • Analyzing the structure of data to resolve data issues • Developing and automating data tools for data scientists and BI • Automate manual processes and optimize data delivery • Developing data analytics tools for data management Stack: Apache Spark, Apache Hadoop, MapR, HBase, Apache Airflow, Jenkins, Scala, Python, PostgreSQL. • Designing and maintaining ETL pipelines • Developing and maintaining libraries for batch processing & ingestion of large volumes of data • Analyzing the structure of data to resolve data issues • Developing and automating data tools for data scientists and BI • Automate manual processes and optimize data delivery • Developing data analytics tools for data management Stack: Apache Spark, Apache Hadoop, MapR, HBase, Apache Airflow, Jenkins, Scala, Python, PostgreSQL.

  • Agroknow
    • Greece
    • IT Services and IT Consulting
    • 1 - 100 Employee
    • Data Engineer / Backend Engineer
      • Apr 2020 - Mar 2021

      • Data crawling, enhancing and warehousing • Python back-end development on data analytics APIs • API Integration. Unit and functional testing • Integrating ML models Stack: Python, Elasticsearch, MongoDB, MLflow, Airflow • Data crawling, enhancing and warehousing • Python back-end development on data analytics APIs • API Integration. Unit and functional testing • Integrating ML models Stack: Python, Elasticsearch, MongoDB, MLflow, Airflow

Education

  • University of West Attica
    MSci, Informatics and Computer Engineering
    2016 - 2021

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