IDevio - Designer for Branding Needed

We are close to our product launch and have began preperations for our brand. We are looking for a designer to create a unique identity for the company. We require the following branding.

- Logo Design
This is to be used on our website, stationary and product

- Business Card
Generic business card design for our employees using the logo

- Letterhead
Word document letterhead

- Envelope (Varies Sizes)
Our branding on an several sizes of envelope

All these will be sent to a printers so need to be designed so we can simply had the files over to the printers.

We are looking for the same design throughout. It needs to fit in well with our app design and colour scheme. Screenshot of a view of our app design has been attatched. As you can see, we will be replacing the current logo we have on the app.

Please reply with a bid and portfolio. Candidate under taking this task will require a portfolio.

The design and creativity of the person needs to be sleak, professional, fresh and fun. The candidate with the portfolio that matches our vision the closest will be awarded the job.