Will try to be vague.
Have a newish colleague, he came from a similar role so was pretty familiar with the role in our place, has had no issue in learning the slight differences and doesn't struggle with the role.
It has become apparent that he dislikes me. He won't look at me and barely speaks to me. If he has to it's short answers and the tone is very different to how he speaks to others. Our jobs mean we have to work closely together. I have done nothing but try to make him feel welcome.
We are supposed to communicate with each other as to what we are doing so we can split the work. He does sod all and I'm trying to pick up the slack. He works more hours than me but I probably do 3x the amount of work he does. If we are approached and asked if one of us can do something, he will look away so I have to offer. A colleague made a joke about this to us as he noticed it and he basically admitted that is what he was doing. As a result I'm doing a lot whilst he is doing I don't know what.
There are certain things we are both supposed to do, he just doesn't do them, I have to do them as they need doing. One time I offered to show him how to do something and he told me he had already been shown, and has never done this since.
There is a job that needs doing every day or it builds up. I have worked really hard in getting the massive backlog cleared and it was told to us that we need to do it each day. He barely does it. One day I knew he wasn't doing work as he was messing about on his computer, I suggested (nicely, as in 'if you are stuck for something to do' as I knew there was nothing in our email inbox) there is quite a lot of this job that needs doing and I got a snippy reply that he did it yesterday and wasn't doing it today. I had to do it again as I don't want it building up.
On Friday our boss said there is something that needs doing this Wednesday and wanted to know who wanted to do it. I've done it a few times recently and shown him how to do it and don't want to look like I'm jumping in so I hesitated. Boss looked at colleague who just looked back and said nothing. Boss said he looks like he doesn't want to do it so I said I guess I'll have to.
I have mentioned in conversation to my boss that he clearly doesn't like me as he is noticeably 'off' and I feel like I'm walking on eggshells. I've also said that it feels like I'm doing the job alone and there are times where I can't work out what he is doing. Today I was asked to spend a day doing something only I can do, which I'm happy to do, and our other work was building up. Colleague was doing something that wasn't urgent and taking forever to do something that takes me 2 minutes. I mentioned to him that there was a lot of work in the email inbox and I got a snippy reply. Thankfully boss overheard and intervened by checking what I was doing then directed him to what needed doing (which is what I said to him was building up). Boss has told us before we are to communicate with each other over the work so I've not been overstepping by directing him to what needs doing when I'm doing something else.
I'm getting frustrated by this. It has been noticed and I've out right said some things but there seems to be a reluctance to do anything about it.
I'm happy to do any of the jobs at work, I enjoy my role and I work with great people. This one person is making me feel tense and I'm getting fed up with having to try and do everything else that he just won't do and gets snippy when I try and suggest what we are each going to do. Friday's example really wound me up as he literally sat there and looked at my boss, refusing to do it, knowing I would.
Does this need formally addressing or do I suck it up and just accept that he is going to coast through his job?