There are higher chances of meeting a tooth fairy riding an unicorn, heading to a leprechauns pool party, than finding a quant in Eastern Europe. Not saying they are mythical creatures, but the probability of finding one is lower than simultaneously meeting all the creatures enumerated earlier in the exact pool party context. I know since I'm one of them
I worked for 10 years in finance here and quit 2 years ago for a 50% raise outside finance. Bonus no IP contracts over the stuff I do by myself AT HOME and didn't interest my finance employer the least bit anyways, unless if they prove to be profitable of course. So right now I'm still doing R&D after the day job outside finance, developed my own backtesting system and running live what I pan out on an Interactive Brokers account, again with an auto-trading engine written by myself (same code that runs in backtests). Published my trading engine on GitHub, except for the business logic which is loaded at runtime, unless I somehow fucked up some git push and committed that code too. Not much problem so far anyways since obscurity is security sometimes
I trade options, always fully systematic. Speculation, arbitrage and I'm considering market making but with 2-3 hours per day after 10-12 of day job, plus a family that demands my attention at least sometimes, that's an endeavor I'd rather be doing when I can go full time on this, on my own savings. Worst case some 4 years from now, best case some 1 and a half.
Finance jobs in the area are very rarefied, with quant demand non-existent or at most some "can I haz teh formula" guy who can copy the formula into the code without mixing up the signs. Head tester is the guy who after 5 years of training on the job does interiorize the idea that when volatility shows 1 million, there's probably something wrong in the system. I had guys in IT technical interviews asking me "what's a quant" and HR ladies panicking after I tried to carry an informed conversation on the product they were working on "so you build a platform for trading equity swaps" and the reaction "who told you that?! we're an ISO-8293 certified confidentiality level company, you should not have known anything about the product or client.. no job, no job, get out".
And outside the area (London that is), the whole system is generally a far OTM options selling scheme where my side of the suckers think it's a bargain price to pay (just some small amount of time spent interviewing) for a VERY CONSISTENT WIN at the end, only they neglect to factor in the probability (Dunning Kruger bias) and think they're like at least 50%... what 50%... 90% likely to get the job. Used to be some one in 10k a few years ago, now with the credentialist arms race (20 years head trader at Deutche Bank can't find a job) you have far greater chances of winning the lottery than passing those interviews.
So those who can (like me) better focus on what this business is all about, making money by trading on their own account.