Mehmet Ş.

Data Engineer

Mehmet is a skilled Data Engineer with five years of experience in Turkey's finance, telecommunications, and e-commerce sectors.

He has consistently demonstrated his ability to design and implement high-performance data processing systems that handle large-scale data efficiently.

One of Mehmet's most notable achievements is the creation of a Java-based application that identifies order items eligible for free shipping promotions. This system processes order events from Kafka, interacts with the Rise Simulate Apply service via API calls, and outputs the API responses to a separate Kafka topic, ensuring accurate and streamlined data handling.

In addition to his technical accomplishments, Mehmet is deeply passionate about the gaming industry. He is eager to expand his knowledge of gaming metrics and analytics to contribute to improving player experiences.

Main expertise

  • Apache Kafka
    Apache Kafka 4 years
  • BigQuery
    BigQuery 4 years
  • CSV 4 years

Other skills

  • Apache Airflow
    Apache Airflow 1 years
  • Apache Spark
    Apache Spark 1 years
Mehmet

Mehmet Ş.

Turkey

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Selected experience

Employment

  • Data Engineer

    Doping Hafıza - 10 months

    • Created and maintained ETL pipelines using PySpark and AWS Glue.

    • Worked with Apache Iceberg tables in the data lakehouse.

    • Deployed and scheduled workflows with AWS Managed Airflow (MWAA).

    • Loaded fact and dimension tables from the data lakehouse into Amazon Redshift.

    • Assisted in documenting new tables, columns, and data transformations.

    • Integrated AWS Glue Docker development environment to enable efficient local development and testing of Spark jobs.

    Technologies:

    • Technologies:
    • Python Python
    • SQL SQL
    • ETL ETL
    • AWS Glue AWS Glue
    • PySpark PySpark

  • DWH Developer

    Trendyol Group - 5 years 11 months

    • Extracted data from various data sources(PostgreSQL, MSSQL Server, Couchbase DB, SAP Hana, Kafka, APIs, Web Pages) by using internally developed data ingestion tools, cdc tools, Kafka Connect and Python scripts;
    • Developed ELT processes on Vertica;
    • Developed ELT processes on BigQuery;
    • Migrated Vertica ELT processes to BigQuery;
    • Developed Python scripts for automating internal processes;
    • Developed Java programs to move data in and out of Kafka (Developed SMTs for Kafka Connect, developed Kafka Streams programs);
    • Maintained Kafka Connect clusters;
    • Supported other teams for query performance tuning, data access etc;
    • Made small proof of concepts for open source tools like Apache Airflow, Azkaban, Prefect;
    • Contributed to internal data infrastructure codebase.

    Technologies:

    • Technologies:
    • ELT

  • BI Consultant

    I2I Systems - 1 year 3 months

    • Developed ETL processes via Ab Initio (Acquire>It, MDW);
    • Developed Bash scripts;
    • Developed PL/SQL procedures;
    • Developed Excel VBA programs for automating UC4 flow creation processes;
    • Supported testing and reconciliation processes Volkswagen Doğuş Finans DWH Project;
    • Created SSIS packages for ETL processes;
    • Developed SQL stored procedures.

    Technologies:

    • Technologies:
    • SQL SQL
    • SSIS SSIS
    • AB Initio AB Initio
    • ETL ETL

Education

  • BSc.Industrial Engineering (%30 English Program)

    Yıldız Technical University · 2011 - 2016

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