Custom Firmware Hack/Install - Utilising 4G LTE Modems

Hi there, We have a custom firmware product for our wifi solution that we currently install successfully on wired in, TP-Link WR841n routers. We use Open WRT to install our firmware onto the TP Link modems so will need to use a similar method, (Open WRT, DD-WRT etc) so experience using this software is a must. We are wanting to take our product a step further, and install our custom firmware onto Huawei E5776 4g LTE Sim Card routers. This will take a very skilled developer who understands what we are trying to achieve. We are looking for a skilled dynamic developer, to be available to contact us during NZT business hours (9am - 6pm) via Skype to help us with ongoing development of this product. Please send us through any wireless/router/modem hacking experience that you may have in this field. We are building a development team to work on this product so if your skills are up to standard we may have an ongoing position for you in deploying Firmware to these modems. Please Answer: Can you work with us to our business hours? Have you worked with custom firmware before? Do you have DD-WRT/OpenWRT experience? Do you have any questions for us? Thanks for reading.