Elance, odesk, or else which is best ??

Mostafa,

Remember, Using odesk is essentially hiring a contractor. So you just treat it as a business in the sense of doing the basic steps to look at whom you hiring.

Things like feedback , Their Portfolio, what qualifications they have, However various factors will need to be looked at more closely depending on the job. For example software development and so on.

So, from looking at the applicant and selecting the ones you fill meet your requirements, You should invite them to the interview process.

Their are even a set of questions odesk provide you, so should ideally make sure you ask all relevant questions and anything you wish to know about the contractor before starting and ideally - that they can do the specified job. You have the option and i would say strongly consider speaking with them via phone ( Skype also and is free) this is another great way to clarify the project or task. This last thing you want it - is the something that is not what you wanted. Information lost in translation along the way!

There maybe some scenario's where the contractor does not fulfill the spec's of the project. So you can refine the contract and create milestones. Also i like to set a fixed budget opposed to hourly rate. This also ensures - you are covered if things go pear shaped and the project is not completed as agreed. They are excellent contractors on odesk, but like anything there are always a few bad apples.

However, Just think of it like this, When you went for a job interview. From the job application to the job interview - the process. Just apply it in the same way.

Hope this Help

Ali Chowdhry