As an experienced Full Stack developer with a comprehensive understanding of Arduino systems, I am confident I can deliver above and beyond your expectations for the Arduino Milk ATM Machine project. Throughout my 6+ years in the industry, I have built a strong foundation in JavaScript and Python - critical for effective utilization of Arduino systems and mechanical engineering concepts. This experience extends to services like REST APIs with Python/Django Rest framework and node/express which will be key in implementing mobile payment systems like e-wallets and QR codes.
Moreover, my knowledge and skillset well align with your project requirements. I can not only build the machine to dispense both cups and bottles up to 1 litre but also develop a user-friendly interface leveraging tools such as GraphQL, Swigger API. My experience with various databases including PostgreSQL, MySQL/MongoDB will be invaluable in ensuring your project performs optimally.
To top it all off, my skills in 3D Modelling and Solidworks equip me to design a robust and efficient milk ATM machine. Therefore, by choosing me for this project, you can rest assured your requirements will be met professionally, efficiently, and within the agreed-upon timelines. I look forward to hearing from you!