Ehsan Meisami

BI Developer

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Düsseldorf, Germany

Experience

Aug 2024 - Present
1 year 6 months
Düsseldorf, Germany

BI Developer

Telecommunications Infrastructure

  • Gather and analyze requirements in close collaboration with business units to develop data-driven solutions and scalable PowerBI reporting infrastructures.
  • Perform detailed debugging and optimize existing semantic and data models to ensure a robust data architecture, high data quality, and improved PowerBI reporting.
  • Design and implement scalable ETL processes for data preparation and integration.
  • Create a wiki for table and view descriptions as well as PowerBI PowerQuery and KPI documentation to ensure a consistent understanding of data structures and metrics.
Dec 2022 - Sep 2024
1 year 10 months
Münster, Germany

Analytics

E-commerce for Beverages

  • Implemented and managed ETL pipelines in Databricks notebooks (Delta Live Tables) using Delta Lake to cleanse raw data and provide it in the gold layer for consistent, high-quality analytics.
  • Developed a Kafka-based real-time streaming pipeline to capture vehicle telemetry data in the Databricks Unity Catalog.
  • Optimized and automated data pipelines with dbt to ensure consistent data quality and efficient data delivery.
Jul 2021 - Nov 2022
1 year 5 months
Berlin, Germany

Business Intelligence

Wholesale Marketplace Platform

  • Led the end-to-end integration of Google Analytics data in Google Cloud Platform, including data extraction, cleansing, and pipeline development to support analyses in BigTable.
  • Assisted product managers with ad-hoc SQL analyses and monitored KPIs for new app releases based on Google Analytics data via Tableau dashboards.
  • Developed and automated a data pipeline in Google BigQuery for real-time customer classification.
Oct 2019 - Sep 2020
1 year
Düsseldorf, Germany

Supply Chain Analyst

International Online Grocery Delivery Service

  • Developed analytical tools and dynamic Tableau dashboards integrated with Snowflake to optimize and manage daily supply chain processes.
  • Used Snowflake and Python scripts with Pandas and Numpy for data processing to automate data flows, ensure data quality, and optimize analysis workflows.
  • Designed and implemented Tableau dashboards with Snowflake to support daily fulfillment operations, focusing on improving operational efficiency and tracking process productivity.

Summary

Data engineer and PowerBI expert with a Master of Science in Data Science and over 5 years of experience developing and maintaining data pipelines, creating PowerBI and Tableau dashboards, building robust semantic models in close collaboration with business teams, optimizing ETL processes, and managing complex data infrastructures.

Skills

  • Database Management: Databricks (Delta Lake), Kafka, Snowflake, Microsoft Azure, Google Cloud, Postgresql
  • Data Visualization: Powerbi (Dax, Tabular Editor, Alm, Dax Studio), Tableau, Looker, Matplotlib
  • Programming Languages: Python (Pandas, Numpy, Jupyter Notebooks), (Spark) Sql, Pyspark (Apache Spark)
  • Project Management And Agile Methods: Scrum, Jira, Confluence, Azure Devops, Git, Github

Languages

German
Native
English
Advanced
Persian
Advanced

Education

Sep 2020 - Aug 2022

Universidade Nova de Lisboa – Information Management School

MSc Data Science · Data Science · Lisbon, Portugal · Cum Laude

Sep 2015 - Dec 2018

Maastricht University – School of Business and Economics

BSc International Business · International Business · Maastricht, Netherlands

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