Marcus Denison - AI Platform Engineer

Q: Where is Marcus based?

Marcus is based in Hamburg, Germany .

Q: What languages does Marcus speak?

Marcus speaks the following languages: German (Advanced), English (Advanced) .

Q: How many years of experience does Marcus have?

Marcus has at least 14 years of experience. During this time, Marcus has worked in at least 8 different roles and for 8 different companies . The average length of individual experience is 1 year and 1 month . Note that Marcus may not have shared all experience and actually has more experience.

Q: What is Marcus's latest experience?

Marcus's most recent position is AI Platform Engineer at DER SPIEGEL GmbH & Co. KG .

Q: What companies has Marcus worked for in recent years?

In recent years, Marcus has worked for DER SPIEGEL GmbH & Co. KG , Siemens Mobility GmbH , TAOD Consulting GmbH , and Adtriba GmbH .

Q: Which industries is Marcus most experienced in?

Marcus is most experienced in industries like Information Technology (IT) , Advertising , Media, and Entertainment and Publishing . Marcus also has some experience in Banking and Finance , Automotive , and Manufacturing .

Q: Which business areas is Marcus most experienced in?

Marcus is most experienced in business areas like Information Technology (IT) , Product Development , and Business Intelligence . Marcus also has some experience in Marketing and Project Management .

Q: Which industries has Marcus worked in recently?

Marcus has recently worked in industries like Media, Entertainment and Publishing , Information Technology (IT) , and Advertising .

Q: Which business areas has Marcus worked in recently?

Marcus has recently worked in business areas like Information Technology (IT) , Product Development , and Business Intelligence .

Recommended expert

Hamburg, Germany

Experience

Apr 2025 - Present

1 year

Hamburg, Germany

AI Platform Engineer

DER SPIEGEL GmbH & Co. KG

Feature development on the recommendation system
Introduction of Azure Databricks
Technologies: Python, Azure, Databricks, PostgreSQL, PGVector, Embeddings, Terraform, CI/CD, API

Mar 2024 - Jul 2024

5 months

Berlin, 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 months

Hamburg, Germany

Data Platform Engineer

DER SPIEGEL GmbH & Co. KG

Providing APIs to perform 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 months

Hamburg, Germany

Data Platform Engineer

DER SPIEGEL GmbH & Co. KG

Connecting Adobe Privacy APIs to the central GDPR service
Technologies: Java, Quarkus, Python, SQL, Git, GDPR, ETL, CI/CD, Kubernetes, API

Mar 2023 - Nov 2023

9 months

Hamburg, 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 in-house Jenkins build system for better 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 months

Cologne, Germany

Data Integration Engineer

TAOD Consulting GmbH

Comprehensive analysis of the existing API infrastructure, identifying strengths and areas for improvement
Communicating API challenges to technical and non-technical stakeholders
Advising on RESTful principles to improve technical understanding and API development
Developing a standardized style guide for future API development to ensure consistent best practices
Technologies: RESTful, API

May 2022 - Mar 2023

11 months

AI Data Platform Engineer

Siemens Mobility GmbH

Developing and implementing cloud solutions on AWS and OCI with automated data pipelines, ETL jobs, and structured artifact management for ML workflows
Designing and building modern API solutions for ML and AI data services from planning to implementation, including code refactoring and a CI/CD framework with GitLab
Automating data pipelines by integrating an experiment tracking system for comprehensive monitoring and performance optimization of ML experiments
Designing the architecture for NLP solutions with seamless component integration for optimal performance and scalability
Implementing an NLP application with RESTful architecture and a user-friendly interface by consistently following coding standards
Setting up 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 months

Head of Engineering

Adtriba GmbH

Leading an international development team (8 people) in creating customer-focused SaaS products
Providing strategic technology consulting and technical support across the company
Coordinating collaboration between internal teams and external partners
Successfully delivering several customer-critical product features that directly impacted company growth
Technologies: Java, Python, SQL, Spring Boot, AWS, Redshift, Git, Scrum, DSGVO, GDPR, Terraform, ETL, CI/CD, API

Mar 2020 - Jun 2021

1 year 4 months

Lead Engineer

Adtriba GmbH

Complete redevelopment of the customer-focused software architecture (frontend, backend, DevOps)
Improving system performance and scalability by 40% through technical rework
Strategically recruiting and building the frontend team
Implementing DevSecOps practices for optimized deployment processes
Technologies: Java, Python, SQL, Spring Boot, AWS, Redshift, Git, Scrum, DSGVO, GDPR, Terraform, ETL, API

Dec 2018 - Feb 2020

1 year 3 months

Senior Data Engineer

Emetriq GmbH

Developing and expanding an innovative cross-device network for extended data reach
Technologies: Scala, Java, Python, SQL, AWS, Git, Scrum, DSGVO, GDPR, IAB TCF, CI/CD

Sep 2017 - Nov 2018

1 year 3 months

Software 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 months

Software 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 months

Software Engineer

Digitec GmbH

Development of a trading and yield curve modeling tool for the financial sector
Technologies: Scala, Java, JavaFX, Git, Scrum

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (5 years), Advertising (3.5 years), Media and Entertainment (3 years), Banking and Finance (2.5 years), Automotive (2 years), and Manufacturing (0.5 years).

Information Technology

Advertising

Media and Entertainment

Banking and Finance

Automotive

Manufacturing

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (11 years), Product Development (7.5 years), Business Intelligence (3 years), Marketing (2.5 years), and Project Management (0.5 years).

Information Technology

Product Development

Business Intelligence

Marketing

Project Management

Summary

Empathy-First Lead Engineer • 15 years of experience • 3 years self-employed Listen, understand, solve! For people and products alike.

Languages

German

Advanced

English

Advanced

Education

Mar 2024 - Present

FOM Hochschule für Oekonomie & Management

Master of Science, Cyber Security Management · Cyber Security Management · Germany

Sep 2008 - Mar 2012

Fachhochschule Schmalkalden

Bachelor of Science, Computer Science · Computer Science · Schmalkalden, Germany

Certifications & licenses

Astronomer Certification For Apache Airflow 3 Fundamentals

Profile

Created

September 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Marcus based?

Marcus is based in Hamburg, Germany.

What languages does Marcus speak?

Marcus speaks the following languages: German (Advanced), English (Advanced).

How many years of experience does Marcus have?

Marcus has at least 14 years of experience. During this time, Marcus has worked in at least 8 different roles and for 8 different companies. The average length of individual experience is 1 year and 1 month. Note that Marcus may not have shared all experience and actually has more experience.

What roles would Marcus be best suited for?

Based on recent experience, Marcus would be well-suited for roles such as: AI Platform Engineer, Data Platform Engineer, Data Integration Engineer.

What is Marcus's latest experience?

Marcus's most recent position is AI Platform Engineer at DER SPIEGEL GmbH & Co. KG.

What companies has Marcus worked for in recent years?

In recent years, Marcus has worked for DER SPIEGEL GmbH & Co. KG, Siemens Mobility GmbH, TAOD Consulting GmbH, and Adtriba GmbH.

Which industries is Marcus most experienced in?

Marcus is most experienced in industries like Information Technology (IT), Advertising, Media, and Entertainment and Publishing. Marcus also has some experience in Banking and Finance, Automotive, and Manufacturing.

Which business areas is Marcus most experienced in?

Marcus is most experienced in business areas like Information Technology (IT), Product Development, and Business Intelligence. Marcus also has some experience in Marketing and Project Management.

Which industries has Marcus worked in recently?

Marcus has recently worked in industries like Media, Entertainment and Publishing, Information Technology (IT), and Advertising.

Which business areas has Marcus worked in recently?

Marcus has recently worked in business areas like Information Technology (IT), Product Development, and Business Intelligence.

What is Marcus's education?

Marcus holds a Master in Cyber Security Management from FOM Hochschule für Oekonomie & Management and a Bachelor in Computer Science from Fachhochschule Schmalkalden.

Does Marcus have any certificates?

Marcus has 1 certificate: Astronomer Certification For Apache Airflow 3 Fundamentals.

What is the availability of Marcus?

Marcus is immediately available for suitable projects.

What is the rate of Marcus?

Marcus's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.