I think also it is against the Data Protection Act 2018 (? - IANAL):
49 Right not to be subject to automated decision-making
..(1) A controller may not take a significant decision based solely on automated processing unless that decision is required or authorised by law.
..(2) A decision is a “significant decision” for the purpose of this section if, in relation to a data subject, it—
....(a)produces an adverse legal effect concerning the data subject, or
....(b)significantly affects the data subject.
I'd say that being rejected automatically for a job before being seen by a human would be a significant decision.
https://www.legislation.gov.uk/ukpga/2018/12/pdfs/ukpga_2018...