As ever, there’s some very strange advice on here.
I’ve been on both sides of the table in pretty much the most corporate global sector there is – and nobody has ever told me what to wear when either attending or conducting an interview. If we are interviewing on a specific “dress down” Friday we will inform the attendee of that, but I’ve never seen anyone actually tell an applicant what to wear for an interview. View it as an unspoken test of your judgement.
Even if an applicant was informed it was dress down friday (or a “casual” office), if an applicant turned up dressed casually (jeans, T-shirt), it would probably be perceived negatively by the majority of interviewers, either consciously or subconsciously.
My view is to default to a suit for an office job, unless you’ve got a specific reason not to (as mentioned above). For the role you describe, I would say that chinos/shirt/shoes and possibly some sort of jacket is a good call. The upper end of smart casual.