Hello.
I have read your requirement and I am very interested in this job. Seems to be an interesting work and good opportunity to show my skills to work with you in future as well. I'm a professional developer with over 6 years having rich experience with Ruby on Rails, React.js, HTML, CSS, Javascript and MySQL, so that I can bring your idea to live and you can reach the goal absolutely with me. I am confident that you will be completely satisfied with the quality, timeliness, and professionalism of my work. Now, I have enough time to work for your project and I'm ready to go with you. Usually, I would provide long term support on the work I did. Looking forward your contacting. Hope I could awake you interest in me.
Thanks for your attention.