Hi, my name is Pavle and I am exactly the guy you are looking for. I have more than 3 years of experience in crafting unique, user friendly UIs. I have experience working with various tools like Adobe XD, Photoshop, Sketch as well as with online mocking and UI designing tools like Marvel, InVision, Balsamiq and more. Beside all of that I am proficient in creating web site/apps and mobile apps using latest tools and programming languages like HTML5, CSS3 (Bootstrap, Foundation, SCSS), JavaScript (React, Angular, Vue) and so on... I have backend experience too, in Python (Django) and JavaScript (Node, Meteor). Check out link below it is a website for cake making business based in Chicago that I built in past.
Cheers!