Dear, client.
Nice to meet you.
I am a mobile developer who has a strong skill of web server development.
As an web server expert, I am very interested in working for your project and have developed many apps before, so have the rich experience in this field.
I need your idea, then it will be implemented by me.
As my experience, I am not afraid of any web server development, and also I have experience to built taxi like uber,
so full experience of geolocation, iOS mapkit, google map api, payment integration, real-time chatting with nearby friend, matching interest and so on.
I'd be more than happy to offer my service, so feel free to contact me for an interview.
I look forward to hearing from you.
Best regards.