Automotive CAN Ethernet Communication software

We are looking for an expert individual that has history of working with Automotive CAN and Ethernet networks. This individual will be required to build us a software that we can use for flashing Engine control module on new and older vehicles. We are working mostly with latest KWP2000 and UDS protocols for of the flashing. At this point, we already have all the needed UDS commands for flashing the firmware, so the only thing that we need now is for an individual to build a communication software that will implement and execute these commands as well as hardware for flashing. Also we already have a basic communication program that lets us send the commands directly to the modules and we can send the source to the Freelancer to accelerate the working process. The final MASTER software: 1) Be able to communicate with the vehicle on both Ethernet or CAN networks (Ethernet is used on new-er vehicles while direct CAN is used on slightly older) 2) Be able to write and read the engine control module data/calibration and perform all the needed tasks 3) Be able to en-crypt our modified data hex file that will be distributed to our customers The final Slave/Customer software and hardware. The hardware will need to contain a CAN and Ethernet to USB communication Chips as well as protected processor chip with at least 6mb of memory. 1) Be able to communicate with the vehicle on both Ethernet or CAN networks (Ethernet is used on new-er vehicles while direct CAN is used on slightly older) 2) Be able to de-crypt the modified file during writing. The slave/end user hardware will need to have firmware built in such a way where a work flow is similar to this: A) End user loads encrypted firmware into a flashing program B) The program sends Encrypted firmware to the device C) Device loads the encrypted firmware into the internal protected memory. D) Device's firmware De-Crypts the encrypted file before/during writing E) Device's firmware corrects the checksum of DeCrypted file with Infineon Tricore MEDC17 checksum algorythm. F) Device writes the DECRYPTED and CORRECTED firmware to the ECU 3) Be able to read original firmware on some ECUs Please only apply if you have direct knowledge required for this project as we do not want this project to be outsourced for multiple parties.