Working on all sorts of internal tools that help selling and supporting our Product, f.e. Website, Knowledgebase, CMS, Shop System, etc.

Also I'm an educator and mentor for trainees and new employees.

Senior Fullstack Developer

Providing custom monitoring solutions, data dashboards and visualization for customers from various industries.

Fullstack Developer

My first startup attempt, providing a easy-to-use music recording interface for the web.

CEO & Software Engineer

Developing new apps and plugins for Open-Xchange App Suite
Maintaining, restructuring and enlarging the documentation

Intern

Maintanance, support and development of a report archive software Maintanance and development for the corresponding Microsoft SQL Servers 
Writing SHELL scripts for UNIX servers and scheduling them with APX systems

Backend Developer

2.5 years of apprenticeship for graduating as 'Computer Science Expert For System Integration'
Worked for:
T-Mobile WIFI Hotspot 2nd Level Support, Project Railnet (monitoring WIFI hotspots)
Deutsche Telekom Netzproduktion': developing an user interface
Telekom Training Center: networking & programming training (teacher & student),
Used Technologies: Cisco, RHEL, Windows, TCL, Bash, Javascript, PHP, HTML, CSS, C, C++

Vocational Training

In the past 5 years, I used Django in various projects to fit customers needs and deliver a great product in the end, always using the framework's "batteries included". The past 3 years I was maintaining and developing Paessler's (see: paessler.com) inhouse CMS, which is also based on Django. Throughout these years, I became very familiar with many sides of this technology.

Wrote several apps with Vue already. It's my favorite SPA framework, as it's both flexible and pre structured. No. 1 feature are surely the single file components. The big community is also great to have, that really accelerates everyone's workflow.

I started using javascript on my first private web projects when I was 13 years old already. But the real understanding came many years later when I had my apprenticeship at Deutsche Telekom. I learned about theory of programming and after worked on some internal tools for land line line testing. I helped developing new platforms, maintaining the software and training other trainees in programming and continuing the developement.
After the apprenticeship I worked for different companies developing all kinds of solutions for internal tools, products to ship to customers and online plattforms.
I worked with many other languages teaching and applying but Javascript is most certainly my mother tongue and most favorite of all of them.

I got crazy about jQuery from the very beginning, because it suddenly made Javascript very handy. I really liked these easy selectors and all the convient methods. I still like writing jQuery code for prototyping and small projects. (for example www.uritup.de ) 
For serious projects who need good structure there are better frameworks if you ask me.
But using jQuery is still a very nice way to write reliable, easy and understandable code.

While developing web applications HTML and CSS were always the tool and corner stone for building a good user experience. So depending on the project from XHTML to HTML5 and basic CSS to advanced LESS markup, I used all kinds of ways to build the plattforms I had in mind or customers asked for.
I started at early age to develop web sites just out of curiosity and of course the first technologies who came across my way were HTML and CSS, so I became familiar with it very soon. Actually mastering and understanding all the markup and definitions took some more time, projects and theoretical learning of course.

In the past years I was maintaining several services using Docker as standardized development environment for the applications. After about 2 years experience, I also prepared a couple of applications to deploy them to kubernetes using almost the same docker images as in development and staging. Great tool, solid technology.

I've been using Gitlab as CI/CD tool for a couple of years now and am very happy to have moved from jenkins, buildbot, travis, etc.

Used Ubuntu for many projects when there's no serverless structure available. In the last 3 years, it was the basis for most docker images I build.

Used Flask for several application realizing REST interfaces for our backend.
There are a lot of solutions for common problems/tasks, so it can get very handy and convient using flask.

Developed several RESTful backend applications with it.
It's quick, it's handy, it's fun.
Fan of npm though, makes dependency handling very easy, way more concrete to work with than bower.

I started working with AngularJS for a university project and got hooked on it from the very beginning, because it finally gives javascript fans the structure, performance and scalablity they need for building large, maintable and reliable plattforms.
Eversince I started writing in Angular I'm using it in as many projects as possible, because it brings great advantages, especially for long term projects

Worked a lot with PHP during my time at phoenix group and for privat projects.
Used it both as an offline scripting language for string processing and an online technology for dynamically generating HTML Documents.
Can be very handy for some use cases, although meanwhile I prefer working with javascript based applications

Personal details

Mark S.

Summary

Technical skills

Work Experience