Hannes W.-Self-employed Developer
Check rate
Experience
intermedix GmbH / CGM Deutschland AG
Rule-based software for managing, planning, and providing promotional materials in the pharmaceutical industry
High performance, high availability
Fullstack, DevOps (CI/CD)
Python, PostgreSQL, Vue.js, Typescript, Docker, Docker-Compose, Nginx
Successfully transformed old Excel-based processes into an optimized product that has been in production since 2024
Self-employed Developer
AstraZeneca
Extensive multi-domain platform
Backend for integrating patient and physician platforms, including content management, external interface integration, and login functionality
Implementation of individual frontend components
CI/CD with GitLab & Docker, rollout with Docker Compose & Nginx
Python, Flask, Redis, Postgresql, Cockpit CMS, Minio, GitlabCI, Docker, Docker-Compose, Nginx, API development, RESTful Web Services, database model design, Vue.js, TypeScript, Node.js
Development of a user-centered CMS with custom functions that manages at least 30 different websites and is still in use as of 2025
Development Project Manager / Backend Developer
Siemens AG
Extended an existing configuration engine for electrical switchgear with a RESTful API as an internal PoC for a cloud-based SaaS solution
Design and development of the RESTful API, team leadership
JavaSE, Eclipse RCP, Amazon S3, RESTful Web Services, API design
Successful proof of concept led to the development of additional products that reuse an existing configuration engine in a web-based application
Managing Director / CTO
d25.io GmbH
Built and further developed a high-performance, high-availability platform for image recognition AI as a SaaS product
AI platform based on TensorFlow/Keras
Microservice architecture in Kubernetes
Built, managed, and organized the development department
Python, Flask, Redis, Postgresql, Cassandra, Docker, Docker-Compose, Kubernetes, GitlabCI, API development, RESTful Web Services, platform and data model design, Vue.js, TypeScript
Platform for analyzing and labeling 400,000 images per minute
Liquidation due to a lack of product-market fit
Software Architect
Stoneball GmbH
Worked on an existing configuration engine for electrical switchgear, software maintenance, bug fixing, and feature implementation
JavaSE, Eclipse RCP, SAP API, API design
Spin-off with follow-up project
Software Developer / QA Lead / Project Manager
APPSfactory GmbH
Java, Android SDK, SQLite, Fiddler, JavaScript
Around 30 successful mobile app projects across various industries (automotive, media, finance, insurance, e-commerce, B2B & B2C, healthcare, transport)
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Pharmaceutical, Manufacturing, and Energy.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Project Management, Product Development, and Quality Assurance.
Skills
Application & Data
- Python, Flask, Javase
- Javascript, Typescript, Vue.Js
- Redis, Postgresql, Apache Cassandra
- Rest Web Services, Api Design
Devops
- Git, Gitlab, Gitlab Ci, Jenkins
- Docker, Docker Compose, Kubernetes
- Pycharm, Visual Studio Code
- Postman
- Aws S3
Other
- Database Model Design
- Jira, Confluence, Youtrack
- Fiddler, Soap-Ui
Watchlist
- Tensorflow, Keras
- Node.Js
- Prometheus
- Teterraform, Ansible, Iac
Languages
Education
Otto-von-Guericke University Magdeburg
Diplom-Ingenieur, Computational Visualistics · Computational Visualistics · Magdeburg, Germany
Certifications & licenses
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Hannes is based in Leipzig, Germany and can operate in on-site, hybrid, and remote work models.
Hannes speaks the following languages: German (Native), English (Advanced).
Hannes has at least 13 years of experience. During this time, Hannes has worked in at least 5 different roles and for 6 different companies. The average length of individual experience is 2 years and 1 month. Note that Hannes may not have shared all experience and actually has more experience.
Based on recent experience, Hannes would be well-suited for roles such as: Self-employed Developer, Development Project Manager / Backend Developer, Managing Director / CTO.
In recent years, Hannes has worked for intermedix GmbH / CGM Deutschland AG and AstraZeneca.
Hannes is most experienced in industries like Information Technology, Pharmaceutical, and Manufacturing. Hannes also has some experience in Energy.
Hannes is most experienced in business areas like Information Technology, Project Management, and Product Development. Hannes also has some experience in Quality Assurance.
Hannes has recently worked in industries like Pharmaceutical.
Hannes has recently worked in business areas like Information Technology and Product Development.
Hannes holds a Bachelor in Computational Visualistics from Otto-von-Guericke University Magdeburg.
Hannes has 2 certificates. These include: Itemo Professional Scrum Master and Istqb Certified Tester Foundation Level.
The availability of Hannes needs to be confirmed.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 17 Sep 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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