Looking for an experienced AWS IoT developer/architect

We are looking for a freelancer with extensive experience with the AWS IoT platform and the MQM approach. Specially how to set up the AWS IoT so it can handle many devices/things efficiently and automatically. This is separated task that we consider an initial task. If successful there could be a long-term relationship to be involved in building a the rest of our IoT platform. Here follows a short description of this task. We have devices on a meshed RF network. The communicate with the AWS cloud via gateways. Mesh network topology assumes several accessible gateways. Device will select most suitable gateway, and then connect to it. However, in case if gateway lost connection with AWS IoT, or malfunction, or some radio noise and RF-channel errors, the device can select another gateway, and continue communications with it. So, there is no predefined gateway for mesh device. We should provide easy bulk installation scenarios where security and identity check are important. The platform should manage different device types that may require different sets of application configuration. The initial task concerns Device Management and specifically the following: - Device Registering - Security & Identity - Device Provisioning New devices are powerup in the field and they automatically send out a registration request to our AWS IoT platform. The registration request contains at least the Device ID but also information about the type of device. Propose procedure for doing a registration and authentication in the AWS IoT platform? Explain in detail your proposal. If it is deviates from standard methods provided by AWS IoT services, then be sure to explain why you chose that. Also explain about security. Next if registration step was successful then we may need to retrieve static information about the device (for example hardware/software version, manufacturerID etc). Other basic static information must be added at some point, for example coordinates, address, asset reference etc. We also need to configure the device with application configuration (for example setpoint, alarm limits, calendar data, heartbeat time etc). Describe different cases of installation scenarios and how they are generally done in AWS IoT. This task will include implementing this part of Device Management. We will provide gateways and device simulation tool for this task, So, to summarize this initial task: Freelancer should propose Device Management including the part described above. It may require input from an AWS IoT architect. Anyway, when we come to an understanding what should be done you need to provide a fix price for this part. In the next on-going project, there will be based on an hourly rate. The technical details (protocols, payload limits, call protocols, etc) will be provided when needed. When replying please describe your experience with AWS IoT. Describe reference projects. In the projects details above we have written that the freelancer should propose a solution for the Device Management task. Just so we know that you have some experience please describe briefly about device managment in AWS IoT.