As this is your First Step to be associated with LEICA be sure to discuss who you are? You’re Skills, Goals, Interests, and why you are the Best in the Interview.You need to talk lot about you project and more specifically about your process followed in your project (Agile or scrum). You may get questions related to your explanation. There is a small coding test (written) to identify how you are good at coding. Post that you will be assigned to do some modifications in the UI design which you have shared already. you will be granted a enough time to do the changes. So more than 60% of the questions will be asked from UI design and the rest about c# coding and about your project/Agile framework. If your results are good then there will be a telephonic HR interview a week later or may be in a two week of time.