Requesting Info - Ship Planner Job

I am a container ship 2nd mate from India looking for a Ship Planner Job. I am not able to find enough info from internet. Can anyone help me like how to go about for a ship planner job? is there any courses for this? Some say 2nd mate experience in container ships is enough or a Degree in Shipping field. I have done my B.Sc Nautical Science. Please let me know if you have any info regarding this.