They are useless in the sense that practical programming knowledge and expertise carry far more weight than a printed (or even online) certificate.
However, they still can be useful as a credential on your resume or linkedin (as complementary to your github projects, for example).
They also have use as a motivational factor to boost your self-esteem (engineers suffer a lot with impostor syndrome!). You can have a personal habit or resolution of earning one each month or quarter to motivate yourself.
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Imho I think certificates are useless, they're just as fun as the stickers I put on my laptop
They are useless in the sense that practical programming knowledge and expertise carry far more weight than a printed (or even online) certificate.
However, they still can be useful as a credential on your resume or linkedin (as complementary to your github projects, for example).
They also have use as a motivational factor to boost your self-esteem (engineers suffer a lot with impostor syndrome!). You can have a personal habit or resolution of earning one each month or quarter to motivate yourself.