Graphic Designer and UX/UI Freelancer needed

New startup, need someone with graphic designing and UX/UI experience to generate mocks. Full list of work below:

Company branding graphic design and website design:
1) company logo
2) mocks for marketing website (about 3-4 pages)
3) other branding material - instagram, twitter, LinkedIn, Facebook branding (profile picture, background picture)
4) 1 or 2 coming soon flyers to be posted in social media sites

Product UI
1) UI mocks for about 3-4 workflow screens (upload file, process file, download file)