Hello,
I am a Master's in Robotics student with experience in ROS, Gazebo, Python, MATLAB, C++ and ubuntu linux. I have read your project details carefully and I can design ROS and Gazebo environment for you in which a mobile robot will navigate autonomously and will be moving through the environment avoiding all obstacles. I will deliver you all the required Python, ROS, Gazebo and C++ files. I hope you will like my work.
Thank you very much.