True Life in Uncanny Valley, by Deb Caletti

Eleanor is obsessed with tech titan Hugo Harrison, founder of an app that allows you to rate people and the developer of Frame, an AI program.  But she's not a tech geek.  She's the illegitimate offspring of the man.  Her Mom had a relationship with Harrison years ago and Eleanor and her older sister Ros were the result.  But Harrison no longer talks to them and Mom refuses to allow Eleanor to contact him.  So, Eleanor hatches her own plan.

With a little planning and a lot of luck, she gets herself employed as a nanny in the household, taking care of her half-brother Arlo.  It's tricky to juggle stories so that neither Harrison nor her mother find out who she is and where she is working, but she mostly works that out.  But her plan to simply get to know her father better gets complicated  when she discovers that Arlo is being exploited and abused by his father.

Being a Deb Caletti novel, there's much more to the story than that.  A short list of subplots would include: an homage to Golden Age comics, a diatribe against William Moulton Marston and Aldous Huxley, a fair smattering of childcare advice, extemporizations on German etymology, an extremely toxic family, a love interest (including one botched sex scene), and a screed against social media, robotics, and artificial intelligence.  Caletti's novels are never boring!  The overall point of all of this is the attack on artificial intelligence and the way it borrows/steals its material from artists. But I found the  repulsive mother and evil elder sister (drawn straight out of Cinderella) far more compelling.  The ending is a hot mess but it's an entertaining read.