Marcus D.
AI Platform Engineer
Experience
Apr 2025 - Present
9 monthsHamburg, Germany
AI Platform Engineer
DER SPIEGEL GmbH & Co. KG
- Feature development for the recommendation system
- Introduction of Azure Databricks
- Technologies: Python, Azure, Databricks, PostgreSQL, PGVector, Embeddings, Terraform, CI/CD, API
Mar 2024 - Jul 2024
5 monthsBerlin, Germany
AI Platform Engineer
Siemens Mobility GmbH
- Implementation of a chatbot based on internal data and the OpenAI API
- Technologies: AWS, Python, Langchain, OpenAI, Git, Terraform, ETL, CI/CD, API
Feb 2024 - Mar 2025
1 year 2 monthsHamburg, Germany
Data Platform Engineer
DER SPIEGEL GmbH & Co. KG
- Provided APIs to carry out GDPR-compliant deletions in the data warehouse
- Various data integrations and feature developments around the data warehouse
- Technologies: AWS, Redshift, Lambda, SNS, Git, Python, Airflow, Terraform, ETL, CI/CD, API
Nov 2023 - Feb 2024
4 monthsHamburg, Germany
Data Platform Engineer
DER SPIEGEL GmbH & Co. KG
- Integrated Adobe Privacy APIs with the central GDPR service
- Technologies: Java, Quarkus, Python, SQL, Git, GDPR, ETL, CI/CD, Kubernetes, API
Mar 2023 - Nov 2023
9 monthsHamburg, Germany
Data Platform Engineer
DER SPIEGEL GmbH & Co. KG
- Reduced deployment times from 30-120 minutes to a maximum of 5 minutes by integrating Airflow orchestration and AWS ECS Fargate
- Improved code efficiency and maintainability through extensive refactoring, testing, and removal of redundant components
- Optimized build processes by migrating from AWS CodeBuild to an internal Jenkins build system for improved deployment efficiency
- Implemented seamless data integration from the data warehouse to Amazon SageMaker for accurate KPI predictions and data-driven decisions
- Technologies: Airflow, AWS ECS Fargate, Jenkins, Amazon SageMaker, AWS CodeBuild, GDPR, Python, Terraform, ETL, CI/CD, API
Sep 2022 - Dec 2022
4 monthsCologne, Germany
Data Integration Engineer
TAOD Consulting GmbH
- Comprehensive analysis of the existing API infrastructure identifying strengths and areas for improvement
- Stakeholder communication about API challenges to technical and non-technical audiences
- Technical consulting on RESTful principles to improve technical understanding and API development
- Development of a standardized style guide for future API development to ensure consistent best practices
- Technologies: RESTful, API
May 2022 - Mar 2023
11 monthsAI Data Platform Engineer
Siemens Mobility GmbH
- Design and implementation of cloud solutions on AWS and OCI with automated data pipelines, ETL jobs, and structured artifact management for ML workflows
- Design and development of modern API solutions for ML and AI data services from planning to implementation, including code refactoring and a CI/CD framework with GitLab
- Automation of data pipelines by integrating an experiment tracking system for comprehensive monitoring and performance optimization of ML experiments
- Architecture design for NLP solutions with seamless component integration for optimal performance and scalability
- Implementation of an NLP application with a RESTful architecture and user-friendly interface by consistently following coding standards
- Setup of efficient CI/CD workflows on GitLab to reduce development cycles and increase project agility
- Technologies: Python, Airflow, FastAPI, AWS, Git, GitLab, Haystack, Streamlit, NLP, Terraform, ETL, CI/CD, API
Jul 2021 - Mar 2022
9 monthsHead of Engineering
Adtriba GmbH
- Led an international development team (8 people) in building customer-oriented SaaS products
- Strategic technology consulting and technical support for all business areas
- Coordination of collaboration between internal teams and external partners
- Successful delivery of multiple customer-critical product features with direct impact on company growth
- Technologies: Java, Python, SQL, Spring Boot, AWS, Redshift, Git, Scrum, GDPR, Terraform, ETL, CI/CD, API
Mar 2020 - Jun 2021
1 year 4 monthsLead Engineer
Adtriba GmbH
- Complete redevelopment of the customer-facing software architecture (frontend, backend, DevOps)
- Improved system performance and scalability by 40% through technical overhaul
- Strategic recruiting and building of the frontend team
- Implementation of DevSecOps practices for optimized deployment processes
- Technologies: Java, Python, SQL, Spring Boot, AWS, Redshift, Git, Scrum, GDPR, Terraform, ETL, API
Dec 2018 - Feb 2020
1 year 3 monthsSenior Data Engineer
Emetriq GmbH
- Development and expansion of an innovative cross-device network for extended data reach
- Technologies: Scala, Java, Python, SQL, AWS, Git, Scrum, GDPR, IAB TCF, CI/CD
Sep 2017 - Nov 2018
1 year 3 monthsSoftware Engineer
Moovel Group GmbH
- Development and maintenance of the central authentication/authorization service for a multimodal mobility app
- Technologies: Scala, Java, Python, SQL, AWS, Git, Scrum, GDPR, OKR
Jan 2015 - Aug 2017
2 years 8 monthsSoftware Engineer
InnoGames GmbH
- Development of a CRM campaign tool to increase player engagement
- Technologies: Scala, Java, PHP, SQL, Git, Angular, Scrum, CI/CD
May 2012 - Dec 2014
2 years 8 monthsSoftware Engineer
Digitec GmbH
- Development of a trading and yield curve modeling tool for the finance sector
- Technologies: Scala, Java, JavaFX, Git, Scrum
Summary
- Empathy-First Lead Engineer
- 15 years of experience
- 3 years self-employed
Listen, understand, solve! For people and products alike.
International team enablement through empathy and bilingual communication (DE/EN)
Languages
German
NativeEnglish
NativeEducation
Mar 2024 - Present
FOM University of Applied Sciences for Economics & Management
Master of Science · Cyber Security Management · Essen, Germany
Sep 2008 - Mar 2012
Schmalkalden University of Applied Sciences
Bachelor of Science · Computer Science · Schmalkalden, Germany
Certifications & licenses
Astronomer Certification for Apache Airflow 3 Fundamentals
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