1. Please mention your nature of job? because that might allow other potential companies in Qatar to come in picture.
2. The best option is to fly from London to Doha, reach to their office and have first hand feed back. In case of failure, you would have the chance to speak with a few other similar companies in Doha, who are always on the look out for potential professionals.
3. If the name of company is known, then it is possible for us to give the alternative contact numbers of their HR and boss offices.