What programming language you would use to build systems for financial services with high fault-tolerance, concurrency and, secure model to transfer your money? Choose one: Rust, Erlang/Elixir or Go.

Imagine that you needs to build a critical module (100,000K reqs/seg) of a transaction system to make ACH/TEF/SPEI (Direct deposit of your money,Payments from businesses to vendors and suppliers, moving money from your brick-and-mortar bank to your online bank). Considering only technical aspects and that you have a small good team of four senior devs, what programming language you would recommend for this case: Rust, Erlang/Elixir or Go?

Because this make sense? The latest technologies that supports Cloud Native, Artificial Intelligence/Machine Learning, Blockchain, Crypto Assets/Crypto Currency, IoT has come to stay and innovate our lives and, those technologies has fit with the main value and principle of innovation: User-centring business model using Best Practices, DevOps and Agile Culture in the all innovation process.

Currently, the big-banks, neo-banks or fintechs needs to delivery solutions for all people generations very fastly based in innovators business models with a incredible user experience.

To deliver the best user experience with secure software in financial services, is critical build solutions of high fault-tolerance, concurrency, secure and compliance models to transfer your money through all customers channels: mobile, web and desktop.

Thanks for your comments guys.

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