Leveraging my extensive experience in software development, I believe I am the perfect fit for your Flutter app submission task. Not only am I well-versed in a wide range of programming languages including Python, Java, JavaScript, and C++, but I also have solid knowledge of mobile app development. Having worked on different kinds of projects, from front-end interfaces to back-end development, I understand the importance of thoroughness and functionality, and guarantee these aspects in your project as well.
Moreover, I can confidently state that I posses the resourcefulness needed to facilitate your app's submission. My understanding of different databases such as SQL and NoSQL allows me to handle various tasks related to data management efficiently. Additionally, my grasp on cloud computing, especially in platforms like Google Cloud and AWS, equips me well to complete this particular task without any hassle.
Lastly, my expertise in Agile methodologies ensures efficient time management so that deadlines are met without compromising on quality. Choosing me means choosing reliability, excellent communication skills with non-technical stakeholders and an absolute commitment towards delivering high-quality outputs. Let's get started on turning your brilliant concept into a successful live app!