Edit short videos

I have 7 short videos (about 15sec ea) which need simple editing (e.g. better light etc. But all in all there is not much editing to do at all!) and you need to add my logo at the start of each video. I need them as a file you can easily upload onto youtube. I have a lot more videos to be made in future so if you do a good job you will be rehired for all to come!!! Please find attached sample logo and sample video.