He wants to bring in a person to take his place in a ribaa-based investment bank account to save himself

No File Exists
Check below answers in case you are looking for other related questions:
He gave his car to someone to sell it and buy a newer model for him. Is this riba?
Borrowing from the bank to buy a house

No File Exists
Related Answers:
Ruling on using the returns on investment certificates for postgraduate education
Stipulating a penalty for late payment in purchase by instalment
Doesn't want to repay riba but also doesn't want to give a bad impression
He gave his car to someone to sell it and buy a newer model for him. Is this riba?
Borrowing from the bank to buy a house

Recommended answers for you:
Ruling on piercing women’s ears
Ruling on dealing with mortgages in a non-Muslim country
Minimum distance of travel at which it is permissible not to fast and to shorten prayers
The etiquette of eating, with detailed evidence
The benefits of drinking camel urine