Stefan Reimers

Consultant. Software Developer. Author


07/03 - 09/05

Student assistant

DBIS Group, Uni Münster
  • Software Development
  • Software Testing
  • Event / Conference Preparations
03/06 - 12/07

DWH Consultant

Informationsfabrik GmbH
  • ETL Implementation
  • Masterdata-Management
  • Data Mart Design
  • Software Testing
  • Trainings
01/08 - 07/13

Information Manager

  • DWH System Design
  • Tool Administration
  • Mart Design
  • Universe-/Report-Implementation
  • Project Coordination
06/12 - 12/14

CEO / Co-Founder

koomio / OUTRIGHT Vision GmbH
  • System Design
  • Web Frontend (Seller)
  • Android App
  • Browser Extensions
01/15 - 07/15


Explore this site
07/15 - now

CEO / Co-Founder

OneBitAhead GmbH
  • System Design
  • Frontends
  • Customer Relations
  • What to expect of me

  • Business Intelligence
  • IBM DB2 Unix/Host
  • Oracle
  • Microsoft SQL Server
  • MySQL
  • MariaDB
  • PostgreSQL
  • Data Vault
  • Entity Relationship Model
  • ETL
  • Informatica PowerCenter
  • Cognos
  • Access
  • VBA
  • Talend
  • SAS Base
  • SAS Data Integration Studio
  • SAS DI Administration
  • Business Objects
  • Android
  • Java
  • Chrome Extension
  • WebExtensions
  • PHP
  • HTML5
  • CSS
  • JavaScript
  • TypeScript
  • Grunt
  • Responsive Design
  • Web Performace Tuning
  • Webserver Administration
  • XQuery
  • XSLT
  • SQL
  • NoSQL
  • CouchDB
  • MongoDB
  • Wordpress Plugins
  • Wordpress Themes
  • Progressive Web Apps
  • PhoneGap
  • Apache Cordova
  • Hybrid Apps
  • Smart Home
  • Z-Wave
  • Zigbee
  • Beacon Implementation
  • Geolocation
  • Retail
  • Einzelhandel
  • eCommerce
  • Book reviews
  • Trainings
  • Windows
  • Unix-*


I offer my services to full extent of my portfolio,
especially on topics related to business intelligence and
web oriented infrastructures.

Business Intelligence

I offer profound knowledge on BI and practical insights.
So far I have worked in Automotive, Logistics, Finance / Risk Management.

Certificates & Trainings

Web Oriented Systems

Moving towards web software has become part of the IT strategy of many companies. To kick-off, extend and improve web infrastructures in businesses I do help with


I do onsite trainings across the country on the following topics. Lectures will be individualized based on the companies landscape (provided that information is available). Offsite trainings are possible mid-term. Send a request.

For more details see the contact information at the bottom of this page. Get in touch!

Software development

I am actively contributing to various web and mobile projects.
Also I get my hands dirty on as much new technologies as possible.

Selected Projects

(e)Commerce / Shopping software

Many of my projects focus on on-/offline commerce

More Resources

Find more information on my projects here

Built Upon Reliable Frameworks

When starting a new project it's crucial to bootstrap quickly. Therefore my projects are built upon well known frameworks and maintained libraries, such as

Web Is The Platform To Rely On

Former web oriented languages like HTML and JavaScript have long escaped your browser tab. Over the past years they have evolved quite incredibly.
Among others, here are the most notable runtime environments I use and projects I follow

What's Next?

I love to spend as much time as possible on the following topics with no postable results yet

Books & Articles

Over the past few years I wrote a couple of
books and articles for various publishers
to share knowledge

Complete List of Books


Furthermore I share my thoughts n my personal blog and the blog that is related to my books. For even more resources see my Google+ and Twitter account (links below).

Selection of German Articles

Stefan Reimers

Stefan Reimers

In der Groll 9a, 45721 Haltern am See

Phone: 03212-1058197

Mail: post @ [website-domain]

Public key for above mail address: Download file here

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Images taken from:, Bootply