Rust Engineer, Trading Infrastructure

Write the hot path. Decoders, streams and transaction routing where microseconds show up in the product and in customer results.

NoLimitNodes parses over a thousand typed events from thirty-seven Solana programs in real time. HyperliquidRPC serves RPC with a 4.2ms median and archives hundreds of millions of events a day. The code that does this is mostly Rust, and it is the part of the stack where performance work pays off immediately.

This role sits in that hot path. You will write and tune decoders, stream processors and routing logic, measure everything, and watch your improvements show up in customer-facing latency numbers the same week.

What you will do Build and maintain high-throughput decoders and stream processors in Rust

Profile and optimise the hot path: allocation, serialisation, network and syscall behaviour

Keep parsers current as on-chain programs upgrade and layouts change

Design schemas and protocols that stay stable while the data underneath moves

Build backpressure, replay and recovery mechanics that survive real traffic

Own benchmarks and regression tests so performance does not rot quietly

Work with infrastructure engineers on placement, networking and capacity

What we are looking for Strong Rust, or deep systems experience in C or C++ with real interest in moving to Rust

Experience with concurrent, latency-sensitive or high-throughput systems

Comfort with profilers, flame graphs and reading what the machine is actually doing

Good instincts for binary formats, serialisation and protocol design

Honest engineering habits: benchmarks before claims, tests before refactors

Able to work from our Toronto office part of the week

Nice to have Familiarity with Solana internals: accounts, instructions, Geyser, Yellowstone gRPC

Experience in trading systems, market data or MEV-adjacent work

Time spent with io_uring, zero-copy techniques or kernel-bypass networking

Experience running the things you build, not just writing them

Who you are You find a 20 percent latency win genuinely exciting

You measure first and optimise second

You read other people's code to learn, not just to review

You want your work to have a number attached to it

You are comfortable being on call for the systems you build

How we hire 1 Intro call with an engineer, about 30 minutes

2 Short take-home assignment involving real decoded Solana data

3 Technical conversation about your assignment, performance work and past systems

4 Conversation with the founders

5 Offer

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