Yale’s career survey unfortunately does not show by-major results.
https://ocs.yale.edu/contact-ocs/statistics-reports#toc3
[url=https://ocs.yale.edu/sites/default/files/files/OCS%20Stats%20pages/Final%20Class%20of%202018%20Report%20(6%20months)(1).pdf]https://ocs.yale.edu/sites/default/files/files/OCS%20Stats%20pages/Final%20Class%20of%202018%20Report%20(6%20months)(1).pdf[/url]
However, it does look like 3.9% of 2018 graduates took engineering jobs (versus 6.1% of degrees were in engineering, according to https://nces.ed.gov/collegenavigator/?q=yale&s=all&id=130794#programs ). Regarding CS, it looks like 4.8% of graduates went into software jobs, versus 5.7% of degrees in CS.
The traditional Ivy League job destinations of finance and consulting were the biggest job destinations at 15.4% and 13.4%. It is likely that at least some Yale engineering and CS graduates go there instead of engineering and software jobs.