If you trust enough your money to third party services

I am wondering about expenses you make to need investors. Can you describe what for you need money? Hosting, servers, advertising campaigns? Please be more clear

What do you mean by "decentralised exchange"? Please explain.

I agree with others here. Definitely, you should go your own node. It's even better not because you'll be independant, but also from development side. I worked on numerous projects, dealing with crypto daemons and should say, that some forks (ltc, doge, etc.) have same rpc api. So your code may be easily reused. Moreover you can create rpc wrapper, or use an existing one, like 'easybitcoinphp' if you use php to deal with multiple of them. If you have any further questions, consider pm me or wright here, I may advice

I am software dev with experience in web app, linux, coins api. I can make some of your projects, preferably web direction. Price and details we may discuss in PM if interested

I am software developer with experience in web applications, may do fullstack job for you, concerning website/web wallet. PM if interested

Why do you need linux dev if your server is windows? Correct me if Im wrong, may be I missunderstood you

There are plenty fin. Instruments, not yet or only partially implemented: short selling, options, futures, warrants, etc.. And by options I mean no way these binary casino-like shit. Would be nice to see that.

I am a software developer and can make this gateway for you from scratch.
Depending on your site and your wishes the prices  may vary. Min is about 400 usd ( incl bitcoin wallet configuration). Your wallet will be independant and will receive payment directly. Payment after completion. PM if interested.

I couldn't find a decent poker project.
I know there was Seal with clubs, however they had to close. Than they opened again, but had fewer online, cause of loss of android client. A lot of people liked it. Its simplicity, rather fast withdraws, phone client made them decent income. Think over it. You may search their topic here on 'talk'

I see here about 6 pages, including (home, auth, order creation, history, support and admin order list/order approved) Everything depends on their difficulty, ex support may be chat, maybe only email form. there's  no difficulty with api. Exchange rate is delivered up to your choice, which exchange to use. Currencies list up to you, as well as cryptocurrencies.

The minimum price for a work is 600 usd.
If you wish me to configure cryptocurrencies I will take additional 25 dollars each daemon.
Maximum deadline is month (i have kind a lot of work now)
You pay after work is done, part by part. If you want details PM me.

Do you mean something like "cloud mining", when you say "hosting"? I mean, what sort of service do you offer? Is it investing in your equipment to get percent of profit from mining?

What are the requirements for website backend developers? Are they full stack? Which technologies do you use? I am very interested in above mentioned position.

Correct me if I am wrong, but verification is must for those exchanges, where it is possible to deposit/withdraw, using bank accounts directly. Consider Russian based exchanges, like yobit (not the best one though), where account setup is very easy. The disadvantage of this approach is necessity to work with online payment systems, like OKpay, yandex money, etc... which have sometimes rather large fees. So everything is relative. We have to choose between ease, anonymous but risky exchange or user-unfriendly but regulated one

It's rather wide question. It requires experience, so you should try. Invest not more, than you are afraid to loose. Pay attention to important things like current coin supply, daily volume, market capacity. Study your potential altcoin, you are going to buy. Check if it is premined (may lead to unpredictable fall), etc. You will find out set of your own rules in future.