Marc Matt
Freelance Data Specialist
Experience
Jul 2024 - Present
11 months Germany
Freelance Data Specialist
BrightlySoftware - A Siemens Company
- Migration of customer data from a private cloud to AWS
- Optimizing data transformation jobs and migration from Talend to AWS Glue
- Automation of all migration steps
- Used technologies: AWS, Python, Lambda, CloudFormation, SQLServer, AWS Stepfunctions, Glue, PySpark
Oct 2022 - Jun 2024
1 year 9 months Germany
Freelance Data Specialist
RTL Data
- 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
Jul 2022 - Sep 2022
3 months Germany
Freelance Data Specialist
Boldmetrics Inc
- Redesign Data Entry into DWH for serverless scalable real-time updates
- Design of data architecture for DWH
- Used Technologies: AWS, Python, SQL, Kinesis Firehose, Redshift, MS SQL, dbt
Dec 2021 - Jul 2022
8 months Germany
Freelance Data Specialist
Spin - Tier Mobility
- 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, SQL, Flask, dbt
Jun 2021 - Nov 2021
6 months Germany
Freelance Data Specialist
Mediamarkt E-Commerce GmbH
- 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), Docker, Python, SQL, Flask
Mar 2021 - Jun 2021
4 months Germany
Freelance Data Specialist
Janus AI
- Redesign data centric processes for more automation and serverless environment
- Used Technologies: AWS, Glue, Python, PySpark, SQL
Feb 2021 - Apr 2021
3 months Germany
Freelance Data Specialist
Emma Sleep GmbH
- 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, SQL, Python, Glue, Redshift
Aug 2018 - Jan 2021
2 years 6 months Germany
Data Engineering
Engel & Völkers Technology GmbH
- Architecture of a Data Platform, including tool selection and data modelling
- Implementing a Data Platform and integrating all available data source (internal / external)
- Conception and implementation of CI/CD pipeline for the Data Platform
- Modelling property value prediction for real time application
- Used Technologies: Google Bigquery, Apache Beam, Apache AVRO, Python, Kubernetes, Docker, Jenkins, Tensorflow, SQL, Flask
Jan 2016 - Jul 2018
1 year 7 months Hamburg, Germany
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, SQL
Oct 2014 - Dec 2016
2 years 3 months Hamburg, Germany
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, SQL
Mar 2012 - Sep 2014
2 years 7 months Hamburg, Germany
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 self-service 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, SQL
Nov 2010 - Feb 2012
1 year 4 months Hamburg, Germany
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, SQL
Oct 2009 - Oct 2010
1 year 1 month Karlsruhe, Germany
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, SQL
Oct 2008 - Sep 2009
1 year Stuttgart, Germany
Databasemanagement
Coxulto Marketing Solutions GmbH
- Target group determination and selection
- Affinityanalysis
- Addressmanagement and duplicates check
- Administration and operation of the address database
- Conception, development and operation of sales databases for telecommunication companies
- Used technologies: SAS, MS SQL, MS SSAS, Perl, SQL
Jun 2008 - Sep 2008
4 months Karlsruhe, Germany
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, SQL
Apr 2007 - Jun 2008
1 year 3 months Karlsruhe, Germany
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, SQL
Mar 2003 - Apr 2007
4 years 2 months Karlsruhe, Germany
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, SQL
Languages
German
Native
English
Advanced
French
Elementary
Japanese
Elementary
Education
Sep 1998 - Feb 2003
Fachhochschule für Wirtschaft und Gestaltung, Pforzheim
Dipl. Betriebswirt Wirtschaftsinformatik (MBA) · Betriebswirt Wirtschaftsinformatik · Pforzheim, Germany
Oct 1995 - Jun 1998
Goethe Gymnasium, Gaggenau
Abitur · Gaggenau, Germany
Certifications & licenses
Business English Certificate Vantage
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