Hello,
I am Malik, an experienced and professional embedded system designer. I am proficient in Wireless system, RF, Infrared, M2M, WLAN.
From your description of the task, it is very simple for me to design and control the DC motors from Arduino UNO.
I will suggest you to be with me online while I'll be writing Arduino code, in this way you will also learn some programming skills.
I will provide you the well written code and instruction how to connect DC motors with Arduino.
You can also skip the Motor shield and you can use LM298 Motor Driver circuit or ready module which will run 2 motors simultaneously.
To further discuss the project, you can contact me. I will be assisting you to my best.
I will be waiting for your reply.
Sincerely,
Malik