My personal Website
10/2025 - 10/2025
Full Stack Developer. A Django-based website to present my freelance work, projects, and technical skills. The application uses SQLite for data storage and is containerized with Docker for easy deployment.
Dr. Markus Hähnel
DevOps & Cloud Engineer | Python Developer
With over 14 years of experience in software development, I specialize in cloud infrastructure, DevOps practices, and Python-based solutions.
Projects and Skills
Cloud Landing Zone & Virtual Desktop Infrastructure
Stackmeister
04/2025 - 05/2025
Cloud Engineer. Implementation of cloud infrastructure and virtual desktop solutions using Microsoft Azure.
DevOps & CI/CD on GCP
deecoob GmbH
07/2023 - 03/2025
DevOps Engineer. Implementation of DevOps practices and CI/CD pipelines on Google Cloud Platform. Deployed and managed Kubernetes clusters, implemented Infrastructure as Code with Terraform, orchestrated stream processing with Apache Kafka, and automated deployments using Helm Charts.
Compression of Sensor Data
flow.d GmbH
02/2023 - 06/2024
Data Scientist. Development of data compression algorithms for sensor data using statistical analysis, time series analysis, and deep learning techniques.
Migration to the GCP
deecoob GmbH
01/2023 - 03/2025
Architekt. Survey of the system on premises, followed by the system architecture design and project leadership for the data platform in the Google Cloud Platform. Setup of the Cloud Landing Zone and common infrastructure such as databases, Kubernetes cluster, Apache Kafka, Schema Registry etc.
Framework for Neural Network Classifiers
deecoob GmbH
11/2021 - 06/2023
Software Developer. Design and implementation of a framework for neural network classifiers using Python, FastAPI, and deep learning frameworks.
System Architecture for AWS
deecoob GmbH
11/2021 - 12/2022
Architect. Design and implementation of cloud system architecture on Amazon Web Services (AWS). Architected scalable cloud-native solutions with focus on reliability, security, and cost optimization.
Web-Crawler for Diagnostic Trouble Codes
FSD - Zentrale Stelle
07/2020 - 10/2021
Data Engineer. Development of a web crawler for mining diagnostic trouble codes (DTCs) from various automotive data sources. Implementation included data extraction, parsing, and storage in relational databases.
Migration to GitLab & Kubernetes
FSD - Zentrale Stelle
07/2020 - 10/2021
DevOps Engineer. Migration of infrastructure and applications to GitLab and Kubernetes. Implemented CI/CD pipelines, containerized applications with Docker and Helm Charts, and orchestrated microservices using gRPC and Protocol Buffers.
Lecturer for Linux
University of cooperative education Dresden
05/2019 - 07/2019
Teaching Linux administration, Docker, and Git to students.
Development of a preprocessing library
flow.d GmbH
04/2019 - 09/2020
Software Developer & Data Scientist. Development of a library for flexible preprocessing of time series data for the transportation type detection by an AI model.
Structuring and Analysis of 24 Million Time Series
Dresden University of Technology
12/2015 - 06/2019
PhD research on structuring and analyzing 24 million time series using machine learning algorithms, big data technologies, and statistical analysis. Involved software architecture, data center operations, and information visualization.
Development of Laboratory Software
Helmholtz-Zentrum Dresden-Rossendorf (HZDR)
06/2014 - 11/2015
Software developer. Development of Python-based laboratory software with UI to control and run automated experiments.
Lecturing Python
Technische Universität Dresden
10/2013 - 03/2014
Teaching Python programming, statistical data analysis, and modeling & simulation to university students.
Software developer. Development of Evaluation Software
Institute for Applied Photophysics (IAPP) - TU Dresden
10/2012 - 03/2013
Development of Python-based evaluation software with UI and information visualization for analyzing experimental data at the Institute for Applied Photophysics.
Administration of Network Infrastructure and Servers
Studentenwerk Dresden Wohnheim
10/2011 - 10/2015
Netzwork administrator. Network and server administration for student housing, including database management, helpdesk support, and web development with PHP, Perl, and WordPress.
Certifications
Google Cloud Professional Architect
Google Cloud
September 2024 - October 2026
ID: 5bbd523d-cae5-41d1-9d43-4a84557ddbc0
VerifyProfessional Scrum Master I (PSM I)
Scrum.org
April 2020
ID: 525494
VerifyProfessional Scrum Product Owner I (PSPO I)
Scrum.org
April 2020
ID: 525868
VerifyQuality Officer TÜV
TÜV
June 2020
ID: 3240922