Dear sir!
I have seen your posted job on Freelancer and I feel very much interested to work with you. I have read the things that you want. I consider myself perfect match for this job because I am working as ----a Web Developer---- since the last four years.
I have studied in Computer Science and I can assure you that my skills will not let you down. I have learnt almost all the languages such as the languages such as --------HTML, CSS, JS, PHP, ASP, JSP------- etc. and gathered some excellent skills on Web Developing.
I believe that what will take me far from my competitors is my experience. I have been working as a web developer for the last four years and have proved myself many times. You can search work histories and their ratings to be sure. Beside that I have worked on some mobile projects too by using Objective-C and Swift.
I am confident that I can be a good employee for you because I know what you want. You can have a check on my profile, Portfolio, Work History and Feedbacks to satisfy your needs. I can assure you that I will do my best to do your job.
Please check my work review kindly.
regards.