Dear Sir/Madam,
I am interested in developing your application natively for Android and to hear more about what it involves. Firstly, let me give you a little background about myself. I am currently working as a freelance mobile developer in a digital nomad lifestyle, in the past I have worked for an Australian company and a German startup in full time positions developing mobile applications. I have over 5 years of industry experience and one year of freelance experience as a native Android developer both with personal and contracted projects. I have extensive experience with integrating different APIs across different projects (e.g. Google, Facebook, Firebase, WordPress, Spotify, Stripe etc), could you provide any API documentation or describe which technologies you need integrated, in addition do you have any screen designs to share?
I would be happy to discuss the project further with you if you are interested and to answer any questions you may have about my experience, I could give you some examples of my work and if necessary I can provide my CV for you. I look forward to hearing back from you soon.