Need a UI/UX app designer

Hi UI / UX designers. My team and I are working on a very exciting project that we want to start ASAP. We need a UI/ UX designer to help us design our mobile app. I am looking for a very creative and talented designer that will be able to work closely with our lead Developer. We will be hiring this individual on a project basis for potentially up to 6 months part-time. Responsibilities will include : - Create a cohesive style guide and ensuring that a consistent design language is applied across the product - Communicate in detail designs and interactions to our developer - Gather and evaluate user requirements in collaboration with our lead developer - Illustrate design ideas using InVision, Sketch 3, Photoshop etc. - Develop UI mockups and prototypes that clearly illustrate how sites function and look like - Create original graphic designs - Identify and troubleshoot UX problems - Adhere to style standards on fonts, colors and images Our Requirements: - Proven work experience as a UI/UX Designer or similar role - Portfolio of design projects - Knowledge of wireframe tools (InVision, Zeplin) - Up-to-date knowledge of design software like Adobe Illustrator and Photoshop - Team spirit; strong communication skills to collaborate with our developer - Good time-management skills