I took the liberty of very quickly expanding kristopolous's[0] script into an unpacked Chrome extension gist.
Forked the gist and added the code here: <a href="
Copy/paste and load it in Chrome dev mode. Uses the function name `hnJobQuery` to avoid any potential conflicts.
eg
    hnJobQuery(['remote', 'python']);


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[0] <a href="
Ask HN: Who is hiring? (May 2018)