(anecdotal insight here): Many people at tech companies are not software engineers. I believe they are more often to the left of the general tech workers. Tech workers can be pretty left still, but I have found to tend more libertarian/a-political.
In general though, many people employed at tech companies are young, coastal (by virtue of where they work), and work in cities. All those factors tend to skew more left.
(anecdotal insight here): Many people at tech companies are not software engineers. I believe they are more often to the left of the general tech workers. Tech workers can be pretty left still, but I have found to tend more libertarian/a-political.
In general though, many people employed at tech companies are young, coastal (by virtue of where they work), and work in cities. All those factors tend to skew more left.