For infrastructure-oriented research projects such as information services and virtual research environments, competence in software development and operation is increasingly becoming a factor of success. These are not necessarily the main skills of researchers. They need advice and support, the provision of which is an essential task of the information infrastructure. Professional software development and operation thus support and enable research and innovation. With e-Research SaaS we deliberately resort to proven procedures and standards in order to provide reliable, practicable and maintenance-friendly systems as efficiently and cost-effectively as possible.