Dipl.-Wirtsch.-Inform. (TU Darmstadt)

Volker Kettenbach

For more than 20 years I have been developing software passionately.

As a trained banker and studied diploma in business informatics (TU Darmstadt) my special strengths lie in:

  • Understanding of both "sides": business and technology
  • Full-Cycle-Development: from concept to implementation and operation I can offer solutions from one source
  • Experience and innovation: I offer 20 years of experience as well as an always up-to-date, practical technology know-how
  • Expertise in the field of the current trend "Data Science aka. artificial intelligence (AI), so Machine Learning and Deep Learning.
  • Enthusiastic eletronics "maker" in the field of IoT and MCU

Contact

Services

Through full-cycle and full-stack development combined with Sysop/DevOps services, IT architecture consulting and current topics from data science, I can offer you the creation of state-of-the-art individual software systems from one source. I can also support you as an enthusiastic maker in the IoT/MCU area.

Full-Stack & Full-Cycle development of apps and web applications

  • Conceptual work (business and IT concept)
  • Development according to the Scrum method
  • Frontend application development
  • Development of backend applications
  • Development as microservice architecture
  • Development "cloud-native" (Google/AWS)
A full-cycle development means that I can offer you a complete service from concept to planning and implementation up to the operation can offer a solution from one source. Full-Stack means, that you will receive from me a development of the frontend application, i.e. an app or a web application and also the corresponding backend (server components). Read the section Technology Stack to get details about the used technologies.

Data Science - Machine Learning and Deep Learning

  • Tensorflow / Keras
  • OpenCV
  • Google AutoML-Vision and Natural Language
Do you need conceptual help or advice on current data science topics?
Then get in touch with me! I will gladly help you further.

Read the section Technologiestack for details on the used technologies.

IoT Maker

  • MQTT / VerneMQ
  • Google IoT Core
  • NodeRed
  • Tasmota
As an enthusiastic maker, I use my experience in programming MCUs and MQTT systems, I bridge the gap between hardware and software development. hardware and software development.

Read the section Technologiestack for details on the used technologies.

DevOps and Sysop services

  • Container construction, operation and orchestration
  • Docker and Kubernetes
  • Google Cloud Platform
  • Linux-Server/Service enviroments
  • CI/CD setup and operation
The construction and operation of containers (according to the 12-factor method) is very important in modern Cloud environments a prerequisite for successful production. I support you and create and operate appropriate Docker or Kubenernetes landscapes for you. A special focus of my work is the Google Cloud Platform.
But also in the construction and operation of classic Linux/Unix server and service landscapes I would be happy to assist you.

Read the section Technology Stack to get details about the used technologies.

Technical and architectural consulting for Cloud, Linux and Microservices landscapes

  • Feasibility studies
  • Architecture Concepts
  • IT Concepts
  • Technology consulting
Do you need conceptual help or advice on current cloud technologies?
Then you are welcome to contact me! I will gladly help you further.

Read the section Technology Stack to get details about the used technologies.

Technology Stack

The technology stack I use:

Docker/Kubernetes

Docker, Docker-Swarm or Kubernetes as environment for container execution and orchestration

Google Cloud Platform

My preferred environment for running microservices is Google Cloud Platform with its various IaaS, PaaS and Saas offerings

Python (Flask/Django)

Python with its frameworks Flask and Django is the ideal language (not only) for the development of backend services

Angular/Ionic

For frontend development I rely on Angular (Web) or Ionic (Mobile).

Data Science

I use Tensorflow/Keras and the products of Google (AutoML)

IoT

My expertise is in ESP8266 & ESP32 MCU conneccted with MQTT to VerneMQ or Google Cloud IoT Core. I use NodeRed for programming in MQTT system.

GNU/Linux Debian/Ubuntu

GNU/Linux and especially the distributions Debian and Ubuntu provide a stable basis for Linux services

GitLab

I use the GitLab for the GIT repositories and ticket management and as CI/CD system

Technologiestack