AWS IoT Based Telemetry Web Application Development

We have some Bluetooth Low Energy connection based sensors and a third party AWS GreenGrass enabled gateway. We are looking for a developer to create a telemetry web application based on AWS services. We will complete gateway firmware by ourselves. Main tasks include: - Create frontend user portal (we will provide UI design) - Enable device management for user such as gateway register and provisioning, API calls to send commands to IoT Core for sensor searching, sensor connection (we will cover the communication part between IoT core and gateway), etc - Take data from IoT Core and feed to frontend dashboard. User should be able to customize dashboard (add/remove gadgets, move and resize gadgets). Gadgets include real time gauge, time-series plot, time-series table, etc - Create a service module to allow user to set up actions based on events. Events include sensor disconnection, sensor reading out of tolerance and so on. Actions include sending a notification email, sending sms and so on - Deploy backend application on AWS or use serverless structure - Setup user sign up, sign in and subscription - 2 levels of user roles need to be implemented (admin user to manage gateways, sensors, dashboards, read-only user to only view dashboards shared by admin user) - Manage relevant AWS services Requirements: - Good knowledge of AWS services - Understanding of IoT work flow - MERN or MEAN or Django with Python preferable If you are interested, please create a proposal file to include: - Tools to be used (AWS services, front-end language/framework, back-end language/framework, database, etc) - Briefly explain reason for each selected tool - Tools cost - Total development cost and hours - Lead time - Some basic information about yourself 1) Link 3-5 of your best related work samples, a demo account or demo video would be helpful 2) How long have you been working in software development 3) Are you working individually or under a company 4) Do you have any coding related degree, if so list it 5) List your strong skills in software development 6) Rate your English level from 0 to 10 7) Will you be available for weekly online audio/video meeting 8) Do you have development experience with other platforms