Constructor Software Engineer interview questions

Recruiter reached out to me without providing a job description. After I asked for it, she provided it. Then she asked for time slots and my email (why won't they use a dedicated service?). And finally, she asked for my CV pdf so she could upload it into their ATS (but why? she could download it from LinkedIn). That was when I decided to not proceed any further, If they cannot organise HR work, why would they organise CS work?..