AJob
Checks London startup job pages twice a day and emails me the few worth reading.

How it works
A quick keyword check and a cheap AI model screen every new job, then a stronger one reads the ones that get through. It costs about $0.40 a day, and it runs my current job search.
One day in September
On 15 September it looked at 261 new jobs. 260 were filtered out, and one reached my inbox.