Hello.
I've just been offered a new lecturer post in a department in which I already work. A colleague of mine (male), who is also a good friend, has been offered a similar job at the same grade, but his salary is 5k greater. Technically, I was selected over him for the job I got (though he, thankfully, has been awarded a similar one).
Should I negotiate? He's been working there slightly longer than I have, but basically I suspect his starting salary was just higher.