[aldarn]

I was speaking mostly in the context of startups. For instance, more established companies have greater resources to hire more junior devs at a lower salary point and train them up. They also usually have a higher ceiling for top end salaries (team leads, various flavours of management, architects or niche skills depending on sector).

Hard to say what you should be expecting as i'm not sure how long you've been developing. If you can demonstrate your ability (i.e. pass technical interviews) and have about a years experience or more I would imagine you could get £30k or more fairly easily, startup or not.