Freelancer profile translated to English.

Description

Designing Data Platforms that Power Decisions

With7 years of experience**, I specialize in developing scalable **data platformsandanalytics architecturesfor integrating heterogeneous data sources. With in-depth experience indata technologiesand **data modeling**, I transform complex datasets into actionable insights, bridging business requirements with technical implementation to create robust and future-proof solutions.

Languages

English
Native or bilingual
French
Native or bilingual
German
Fluent

Workplace preferences

Can work on-site

Wiernsheim (up to 50km)

Sony Europe B.V., Zweigniederlassung Deutschland
Senior Data Engineer / Data Platform
TECH
January 2025 - December 2025 (11 months)
Berlin, Germany
Further development and scaling of an existing analytics platformbased on Azure (ADLS) and Databricks for integrating additional data sources and use cases.
Development of new ETL/ELT pipelines (Databricks, Python, SQL, Spark)for connecting and processing heterogeneous data sources (Amazon AMC API, CRM, SAP BW, Excel).
Optimization and expansion of the existing data architecturewithin a Medallion structure (Bronze/Silver/Gold) to improve data quality, performance, and maintainability.
Implementation of analytical data models (Data Vault & Star Schema) for providing consistent and performant data for reporting and analysis.
Development and expansion of Power BIsolutions, including executive dashboards and reporting tools for management, marketing, and sales to enhance KPI transparency and decision-making processes.
Implementation of data quality and monitoring mechanismsto ensure reliable and traceable data.
Close collaboration with business departments and stakeholdersto implement new data-driven requirements and use cases.

Tools: Azure, Databricks (Python, SQL, Spark), Delta Lake, SAP BW, Excel, Amazon AMC API, Azure Data Lake, Power Automate, Git, R-Script, Power BI, DAX, Dataflows, Power Query
Python & SQL Data Pipelines Microsoft Power BI Databricks & Spark Data Engineering Microsoft Azure
Mercedes-Benz Tech Motion GmbH
Data Engineer
AUTOMOBILE
October 2021 - December 2024 (3 years and 2 months)
Leinfelden-Echterdingen, Germany
Further development and stabilization of an existing data platformthrough migration and optimization of data integration processes (e.g., from SAP Data Services to Apache NiFi).
Development and optimization of ETL/ELT processesfor integrating heterogeneous data sources (SAP S/4 HANA, APIs, Kafka, MQSeries) into a scalable data architecture.
Contribution to architecture and data modeling(e.g., Data Vault) for structured data integration and historization.
Building a multi-layered data architecture (Bronze/Silver/Gold)to support analytics and machine learning use cases.
Implementation of monitoring and data quality mechanismsto ensure stable and reliable data flows.
Support in the development and optimization of APIsfor providing data to internal systems and applications.
Collaboration in an interdisciplinary, agile team(architects, data engineers, data scientists, business departments) to implement data-driven solutions.

Tools: MS Azure, Databricks, Apache Nifi, SAP Data Services, Apache Spark, Apache Kafka, REST-API, SOAP, MQSeries, Delta Lake, SAP S/4 HANA, MS SQL, ADLS, Tableau, Postman, Prometheus, Grafana, Java, Python, C#, VBA, SQL, Visual Studio, Eclipse, Github, Git, Agile, Kanban, Scrum, Jira, Confluence
MS Azure Databricks Apache NiFi SAP Data Services SAP S/4HANA
Mait Germany GmbH
ThingWorx Architect & IoT Consultant
MECHANICAL ENGINEERING
October 2018 - September 2021 (2 years and 11 months)
Bochum, Germany
Concept and development of an IoT-based platformfor integrating and processing machine data in industrial systems (ThingWorx, Windchill, Teamcenter).
Implementation of data integration and streamingprocesses (e.g., MQTT) for transmitting and processing real-time data from machines to analysis and visualization systems.
Development and integration of APIsfor connecting external systems and ensuring consistent data flows.
Creation of dashboards and visualization solutionsfor real-time monitoring and analysis of industrial processes.
Optimization of system architecture and data flowsto improve performance, stability, and maintainability.
Technical consulting and support for development teamsin the areas of architecture, integration, and best practices

Tools: ThingWorx, Vuforia Studio, PTC Windchill PLM, PTC Creo illustrate,
PTC Kepware KepServerEX, Siemens PLM Teamcenter, abas ERP, IntelliJ IDEA,
Eclipse, Agile, Kanban, Scrum, Git, PostgreSQL, influxDB, SQL, Python, Java, Javascript, MQTT
ThingWorx JavaScript Windchill

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B.Sc. Computer Engineering
University of Duisburg-Essen

Hermann Wegad Djampou

Senior Data Platform Engineer

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