It seems like these jobs have been up for some time; have you been hiring a lot from them? Just waiting for the right person? It's been a bit difficult to raise any sort of email response related to them, at least.
For what it's worth, I've also contacted them multiple times with no followup.
I'm so sorry to hear this! Please email me at paige at serpapi.com and I'll be happy to look into this for you.
Hi! We have been hiring a lot of engineers! If you are having trouble receiving a response, feel free to email me at paige at serpapi.com and I'll be happy to look into it for you!
Hi Paige! I've dropped a mail for a junior position. Looking forward to your response!