Freelance Software Developer

11/2020 – 7/2021

* Bootstrapped a full team of software developers
* Lead the team of junior developers to create a multi-million dollar fullstack marketing application
* Researched and applied all major architectural decisions for the SaaS platform
* Took all modern team management responsibilities

Clojure as backend language.

Kubernetes, Mariadb, React (JavaScript library)

6/2020 – 8/2020

* Added a user permission concept based on Stripe.com payments to an existing app
* Provided coaching (pair programming) for the local developers

Kubernetes, React (JavaScript library), Typescript

10/2019 – 12/2020

* Created a front end for administrating iOS application content using React/Redux and TypeScript in a test-driven development workflow.
* Created a UI/UX concept to enhance the clients' work experience by carefully (agile) re-iteration of proven solutions.
* Managed all aspects of continuous integration and delivery including build pipelines (GitHub) and deployment on custom Kubernetes clusters.
* Provided third level support for important clients and special uses of the application in press-demo environments.
* Supported the design and implementation of the API.
* Integrated third-party services like DeepL for automatic translation and Mapbox for direction/routing.

Angular, Java (allg.), Spring Framework, Typescript

9/2017 – 10/2019

* Developed an application and corresponding front-end framework for software-asset-management, saving the customers millions of euros in license costs
* Managed and co-developed the continuous integration and operations of the Kubernetescluster running the app
* Built the infrastructure that allowes hundreds of millions of data records to be processed
* Implemented new agile team workflows in the company wide SAFE (Scaled Agile Framework) to improve comunication and team-synergies.
* Managed parts of the agile development process, supporting the product owner and larger clients.
* Researched and implemented novel ways to optimize license costs for Office365 with linear solving algorithms.

Docker, JavaScript, Kubernetes, React (JavaScript library)

1/2011 – 10/2017

* Created and managed poster websites for multiple small businesses
* Built custom PHP-based customer relationship management applications (small business)
* Published several open-source plugins for the CMS used at the time

CSS (Cascading Style Sheet), HTML5, JavaScript, PHP