"Our customers are the big trading houses and they want something that runs very quickly and very deterministically," Phillips says.
"We'll test various Twinax cables and use direct connect rather than using optical fibre, because there is a small but measurable number of nanoseconds taken to turn an electrical signal into light, transmit it down a fibre, and then turn it back into an electrical signal."
"Using agile techniques and Java, with its immensely rich testing ecosystem, was considered pretty weird," he says.
"We have quite a lot of awkward questions from potential customers about latency spikes and garbage collection."
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