How to become a licensed math teacher to teach abroad


I hold a masters degree in computer science .I am a citizen of India but graduated from NJIT(USA). For the past one year i have been working as a math tutor. I am self employed. I would love to teach math abroad but do i need to have a proper certification or license to secure a job. if yes can you please let me know, "how to secure it".

Any advice or suggestions from anyone around the world is appreciated.

Thank you

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