A CRM developer will often specialise in a particular CRM technology, both customising and developing CRM systems for a certain vendor or implementation partner. Freelance CRM developers are also very common, and develop customised CRM systems, tailored to their clients' requirements.
Cologne is the largest city in the German state of North Rhine-Westphalia and fourth-largest city in Germany (after Berlin, Hamburg and Munich). Economically strong, the city benefits from a large market structure, with the most important industries being insurance and media, with several clusters of media and communications firms headquartered within the city. Cologne is also home to a number of corporate headquarters and is an important hub for culture and research.