01.11.2025 aktualisiert

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Data Engineering / Machine Learning / KI Consultant

Hamburg, Deutschland
Weltweit
Dipl. Betriebwirt / Wirtschaftsinformatik (FH)
Hamburg, Deutschland
Weltweit
Dipl. Betriebwirt / Wirtschaftsinformatik (FH)

Profilanlagen

freelance_profile_marc_matt.pdf

Skills

data modelling, Google Bigquery, Apache, Apache AVRO, Tensorflowm Tableau, Python, Kubernetes, Docker, Jenkins, Machine Learning, Big Data, data systems, HAWQ, Gemfire, Hive, Talend Big Data Plattform, Nifi, RabbitMQ, Tableau, Java, Spring Boot, Apache Zeppelin, Tensorflow, DWH, agile methods, data entry, presentation layer, Apache Nifi, Perl, AVRO, Apache Spark, visualization, MySQL, Jedox, RapidMiner, Knime, Database, Uniserv, Oracle, Zoot Decision Management, OLAP, MS SQL, MS, SSAS, databases, telecommunication, SAS, CRM, datamart, Sybase IQ, instantOLAP, Programming, SQL, Map / Reduce, SAS Base, Octave, Matlab Basic knowledge, MAXDB, PostgreSQL, Pivotal HAWQ, Pivotal Gemfire, Talend, Rapid Miner, Apache Spark / PySpark, Python Pandas / Scikit, Apache Beam, Hadoop, MS Office, GenAI, AI Agents, RAG Systems, MLOps, ML Lifecycle, Databricks, Azure Databricks, LangChain, LLamaIndex

Sprachen

DeutschMutterspracheEnglischverhandlungssicherFranzösischGrundkenntnisse

Projekthistorie

MLOps / AI Architect

AstroMind Inc

Internet und Informationstechnologie

< 10 Mitarbeiter

* Designing a GenAI / ML system for document analysis and retrieval
* Setting up a RAG-Architecture and workflow for cost optimization in GenAI usage
* Used technologies: VertexAI Pipelines, Kubeflow, Pinecone, OpenAI, Python, Llama, PydanticAI

Data Engineer

Cologne Intelligence GmbH

Internet und Informationstechnologie

10-50 Mitarbeiter

Integration of Land Registry Data for the transparency
register according to the legislation
• Providing Land Registry Data to legal institutions by
providing an API
• Automation of all changes to the data
• Used technologies: OpenShift, Python, Postgres,
FastAPI, Airflow, Docker, Kubernetes, dbt

Data Engineer

RTL Data

Medien und Verlage

5000-10.000 Mitarbeiter

• Integrating new recommendation models into the
streaming feed
• Optimizing performance and usability of the
recommendation provision engine
• Aggregation and integration of user seed calculations for
real-time recommendations
• Used technologies: GCP, Python, Kubernetes, Docker,
ArgoCD, SQL, FastAPI, Bigquery, AlloyDB, Airflow
(Cloud Composer), ArgoWorkflows

Cloud Architect / Engineer

Spin - Ford Mobility

Automobil und Fahrzeugbau

500-1000 Mitarbeiter

  • Designing and establishing an ML Ops workflow
  • Operationalizing ML models for real-time use cases
  • Used technologies: GCP, Bigquery, Kubeflow, VertexAI, Airflow (Cloud Composer), Docker, Python

Data Engineer

Mediamarkt E-Commerce GmbH

Konsumgüter und Handel

>10.000 Mitarbeiter

  • Establishing a supply chain monitoring system
  • Implementing APIs to all Logistic Services Providers and transforming them for use in a companywide reporting
  • Used Technologies: GCP, Bigquery, Apache Beam, NodeJS, Airflow (Cloud Composer), Kubeflow, Docker, Python

Data Engineer

Janus AI

Internet und Informationstechnologie

10-50 Mitarbeiter

  • Redesign data centric processes for more automation and serverless environment
  • Used Technologies: AWS, Glue, Python, Spark

Data Engineer

Emma Sleep GmbH

Konsumgüter und Handel

500-1000 Mitarbeiter

  • Redesign Data Entry to DWH for serverless scalable Real-Time updates
  • Project management for implementing proposed change of architecture
  • Used Technologies: AWS, Kinesis, Fargate, Docker, Python, Glue, Redshift

Head of Data Engineering / Machine Learning

Surfmedia GmbH
* Responsible for a team of six, including personnel
development
* Architecture of the Big Data / Data Lake systems,
including tool selection and data modelling
* Project management of data- / machine learning
projects
* Responsible for the technology roadmap and
advancement of all affected data systems
* Conception of data pipelines and model selection for the
development of Recommendation Engines and fraud
recognition systems in a real time environment
* Used technologies: HortonWorks Data Platform, Pivotal
HAWQ, Pivotal Gemfire, Hive, Talend Big Data
Plattform, Apache Nifi, RabbitMQ, Tableau, Java,
Apache AVRO, Spring Boot, Apache Spark, Apache
Zeppelin, Python, Tensorflow

Lead of Business Intelligence / DWH

Surfmedia GmbH
* Coordination and priorisation of all tasks concerning the
team using agile methods




* Responsible for six collegues
* Conceptual design and development of a RealTime-
DWH (Data Lake / lambda architecture) to provide a
single source of truth for the whole group.
* Data modelling from data entry, using a push service, to
the presentation layer of the Data Lake.
* Used technologies: HortonWorks Data Platform, Pivotal
HAWQ, Pivotal Gemfire, Hive, Talend Big Data
Plattform, Apache Nifi, RabbitMQ, Tableau, Java, Perl,
Apache AVRO, Spring Boot, Apache Spark, Apache
Zeppelin, Python

Business Intelligence Analyst

Surfmedia GmbH
* Conceptual design, development and operation of a
DWH for the company group consisting of five
companies.
* Conceptual design, chosing and introduction of a selfservice
BI system (reporting and visualization)
* Developing a model for predicting orders.
* Customer analysis to optimize revenue in a social
network.
* Used technologies: MySQL, Perl, Python, Tableau,
Jedox, RapidMiner, Knime

Database Consultant

EOS Information Services GmbH
* Conceptual design, development and operation of a
DWH for a Decision Enginge for risk management
* Conceptual design of processes for risk management
* Conception and development of a process for
manageging addresses using Perl and Uniserv.
* Operation and configuration of a high availability system
for checking addresses, bank details and duplicates
* Used technologies: Perl, Oracle, Uniserv, Zoot Decision
Management, Java

Datawarehousing Consultant

Key-Work Consulting GmbH
* Migration of the sales reporting for a mailorder company
* Development of a statistical model to optimize sales
planning of a mailoder company
* Development of a statistical model for a dynamic
shipping schedule.
* Conception, development and operation of OLAP cubes




* Used technologies: MS SQL, MS SSAS, Python,
RapidMiner, FastStats

Senior CRM Analyst

1&1 Internet AG
* Conceptual design and development of a customer
datamart for CRM analysis.
* Customer segmentation / up- and crossselling potential
analysis
* Used technologies: MS SQL, MS SSAS, Sybase IQ

Lead of Business Intelligence Consumer Products

1&1 Internet AG
* Coordination and priorisation of all tasks of the BI team
* Conception and development of KPI reports for the
board of directors.
* Analysis of cusomter structures and churn prediction
* Design and development of data marts.
* Used technologies: Perl, Java, Sybase IQ, instantOLAP

Business Intelligence Analyst

1&1 Internet AG
* Design and development of an automated reporting
system for customer and contract inventory, as well as
internet usage and customer behaviour
* Integration of all customer concerning usage data of the
company websites into the DWH
* Coordination of all tasks between management and
development departments
* Analysis of ongoing new and existing customer




campaigns
* Used technologies: Perl, Java, Sybase IQ, instantOlap

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