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(Senior) Rust Engineer – High Performance Trading Infrastructure (CLOBS)

Overview
XO Market is building Conviction Markets, a new category of prediction markets that blends trading, social feeds, and belief-driven UX.

We're looking for a Rust engineer who enjoys building high-performance backend systems, trading infrastructure, APIs, and scalable services. Experience with exchanges, financial systems, market making, prediction markets, or blockchain infrastructure is a strong plus but not required.

What You'll Work On

- Improve the core order processing and trade execution system

- Design and develop backend services in Rust

- Optimize critical paths for microsecond-level latency

- Design memory-efficient data structures for order queues and market state

- Build high-throughput pipelines for order entry, trade events, and market data

- Implement real-time streaming infrastructure for market updates

- Build safeguards: rate limits, circuit breakers, and manipulation protection

- Profile and optimize performance across CPU, memory, and network layers

- Collaborate with research teams experimenting with novel market mechanics

Technical Challenges

You will be working on problems such as:

- Rewriting backend services in Rust.

- Designing lock-free or low-contention data structures

- Maintaining under heavy concurrency

- Building low-latency event pipelines

- Optimizing memory allocation and cache efficiency

- Designing systems that remain predictable under burst load

Requirements

- 5+ years of experience building high-performance backend or systems software

- Strong knowledge of concurrency and low-latency architecture

- Experience with Rust language

- Experience building real-time systems where latency and determinism matter

- Deep understanding of data structures and algorithmic performance

- Comfort profiling and optimizing systems at the CPU and memory level - You already utilize in AI in the best way possible to ship high quality products fast.

Strong Plus - Experience working with Solidity

- Experience building trading systems or exchange infrastructure

- Background in algorithmic trading or market microstructure

- Experience optimizing network stacks or message queues

- Experience with high-frequency trading environments

What We Value

- Clear thinking about systems under load

- People who enjoy solving difficult infrastructure problems

- Pragmatism over academic perfection

Apply now:

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Expected base income (per month, USD)