Hi,
I am an Electronics and computer science engineer, I have experience working with various prototyping boards, Raspberry Pi, Arduino, mbed (ARM proto board)... as well as developing custom PCBs, you can find some of my projects on my portfolio.
Related to the project, I worked with mavlink when I had to customize ardusub (child of ardupilot) project to a client, this project uses Mavlink. I couldn't understand what you're looking to do exactly, would love to talk to you and see if there is fit.
I pride myself on ensuring that the customer is satisfied with the quality of the work and strive to sustain good communication and complete the project (5-star reviews/ 100% completion rate)
Looking forward to working with you.
Regards,
Nabil