Hi,
Your project looks very interesting for me. I am advanced user of Altium Designer PCB CAD tool, passionate for designing smart tiny devices, as is yours. I have designed a plenty of low-power devices, including those that measures the distance, so I am sure I will be fluent with your project. I am familiar with lots of microcontroller architectures thus able to select the optimal fit for the project. I would like you to give me a chance to show you that my skills are not only in a words. As an engineer, I offer you clean, precise work.
I am sure you would be satisfied with my work.
Best regards,
Igor