Dear employer.
I am Gang Lee, developer .
I've just read your job posting and I'm very interested.
I'm a certificated freelancer with almost 1000 good reviews from clients.
I'm a Good C, C++,c#,Object-C, Video Streaming, OpenCV, Math, java,SQL, Swift, php,php framework Algorithm expert.
I m quite well experienced in these jobs.
I want to service for you continuously.
Thanks.