Front-office investment banking. Quant dev, risk, algo trading, low latency, etc. Lead dev can make 100-130k base + substantial bonus. At small hedge funds it's possible to get carry which obviously means the sky is the limit.
Contracts rates are generally in the £500-£1000/day range.
Interesting, thanks.
As someone who works in the field above (but not as a dev) I'd agree.
There is also a leap in salaries depending on which side of the business/IT dividing line you sit.