He works as an accountant in a company where he writes down the calculations for ribaa

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Check below answers in case you are looking for other related questions:
Working in auditing offices when there is riba in the companies’ accounts
Working in an audit firm reviewing accounts which involve riba, insurance and taxes

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Related Answers:
Riba is haraam for the one who takes it and the one who pays it, and it is haraam to help with it in any way whatsoever
Ruling on working as an accountant in companies, institutions and factories
Ruling on studying accountancy and working as an accountant in various companies and organizations
Working in auditing offices when there is riba in the companies’ accounts
Working in an audit firm reviewing accounts which involve riba, insurance and taxes

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