Not sure X years of experience matters all that much. For example, Java dev goes to employer and adds Hadoop to her experience, then applies for other jobs for 10k more ambiently for a few months. Eventually nails one and packs her bags, and so on recursively.
Sometimes dev don't add anything at all and just go for more money because of change in condition. JS or mobile app dev is a great example. Nothing changed; they just became more demanded. Meanwhile, you can't match someones salary to the market every day of the week, so they leave.
Sometimes dev don't add anything at all and just go for more money because of change in condition. JS or mobile app dev is a great example. Nothing changed; they just became more demanded. Meanwhile, you can't match someones salary to the market every day of the week, so they leave.
From the employer side London is brutal.