Dear Sir,
I am interested in your project.
I'm senior Java, Spring boot, Angular, php, python developer.
I assure, I will do my best to work with you on your project to present the best possible outcome for you and your customers. I will also do my best to correct any area of work where quality comes into question, I want to have pride in my service to your company and the final product provided.
I look forward to working with you.
Thanks & Regards