This course aims to give life scientists, bioinformaticians, and other scientists with some experience in programming and scripting an understanding of the underlying principles of software development, design, and programming. The course aims to strengthen the understanding of more advanced programming concepts, ability to produce more reusable scripts through modular programming and to enable a better understanding of how to evaluate a script or programs performance. We will cover an introduction to Algorithms and Data structures, Programming Paradigms especially structured and object oriented programming and to give a overview of other paradigms like functional programming. Modular development and (code) reusability, testing and optimisation. The modules will cover theory with bridging practical examples and applications to enhance the theoretical understanding of the principles.