Hi,4 year experience in developing native android apps and now in iOS too with flutter and using Dart language without any bug. Also, best in, Google App Engine, Firebase, SQL, Google Cloud Storage, Git, REST Api, project management, communication & customer services, WebRTC on different protocols, as well as frontend website design and all type of CMS based website.I as a single developer having many skills, I worked as a startup, founder. During this period, I discovered a lot of ways and skills,SpecialtiesChatbot Development with Google Dialogue Flow, Dart with Flutter, HTML5, CSS3, Bootstrap, C++, JavaScript, SQL, Git, Project management, Typography, Proposal Writing, Python, Accounting, Social media Strategy and marketing, Recruitment.ChatBot DeveloperUsing Google Dialogue Flow in Chatbot development,I worked with many customers for their website, software and with social media.• complete their fulfillment• webhook• Implement API(s)• Cloud Computing • using Now it is fast era and customers need immediate response, so a chatbot is best to handle customers. i develop, test, maintain, do fulfillment, and maintain all the phases. In My previous work, my chatbot enables to have a call and answers, booking appointments, management every work as I assigned.WebRTCDuring COVID-19 when almost there was/is lockdown in the world, I worked huge for companies, so they work online to interact their employees, students in real way without adding any plugin using HTML5 Libraries, JavaScript code with 100% satisfaction. I have a lot of experience in Audio, Video conference streaming and transcoding in FFmpeg. The buyers have to inform me about protocols before work.I developed many applications, webinars, dating sites, health sites for professional during these crises.My skills are RTMP, HLS, WebRTC, AWS media server, jisti, Wowza, Red5 etc.Mobile App Development;in this experience, I have a v good experience in UI/UX using Figma before developing apps with java.• UI experience• Social media integration• Firebase• GIT , GitHub• Applying APIs• Unit Testing• Push notification• Payment integration• Effective combination with server and synchronization as well as cache data , so it works fast and for better analytics.I use dart language for flutter for cross OS developments in a single coding. Became I use Google dialogue flow, so I came to know google technology flutter and have experience.Social Media marketing.Because I get startup, so I make strategies and best in social media marketing.