This job posting is for a User Interface Designer position at a leading digital agency in London. The agency is seeking a talented Mobile/UI designer with a passion for designing mobile apps for both gaming and social apps. Responsibilities include understanding briefs, inputting creative ideas, taking the design lead on projects from concept to completion, conducting user research, and defining information organization and screen layouts. The ideal candidate has experience producing design documentation, iterating designs based on feedback, and working with mobile, tablet, and emerging devices. While some mobile experience is required, designers with web design backgrounds will also be considered. The salary is up to £40,000 per year and the location is London.