It is spam in my opinion too. I’m not clicking on any links that were in the email, but some recipients might view such emails as job opportunities.
The service’s approach is too vulgar for my taste, but it is a very creative idea regardless: they have access to credible, high quality data through a person’s heatmap and FOSS contributions, that are publicly available which they’ve used to appeal to employer. The employee gets to choose from field tested, high quality coders and the ciders get tailor made job offers that come searching for them, quite ingenious IMO.
I wonder what other creative ideas can be derived from forges and the data they hold, and I wonder how they’d translate to the fedi.