Sei Labs
Monaco - Founding Engineer
Monaco is a crypto-native research and development group building high-performance infrastructure for open financial systems on the Sei Network. We’re a small, senior team operating at the intersection of TradFi speed and DeFi composability. If you thrive in fast-moving environments, write production-grade code, and have opinions about blockspace and market structure, we’d love to meet you.
What You'll Do
Contribute to the core engineering efforts behind Monaco’s CLOB (Central Limit Order Book), supporting both spot trading and perpetual futures trading instruments.
Build and optimize low-latency trading infrastructure, with both on and offchain nuances.
Lead the smart contract development for Monaco’s EVM-based perpetuals product (Solidity).
Improve performance of order matching systems with a strong focus on latency and reliability.
Ship production code for Monaco v1 and lead explorations into v2 architecture with the Sei Labs.
Who You Are
3+ years of engineering experience, building low latency trading systems, ideally across both TradFi and DeFi stacks.
Have worked at or adjacent to HFT firms (e.g., Citadel, Cubist, AQR, Jump, HRT) or were part of early engineering teams at CLOB protocols/perp DEXs (like dYdX, Hyperliquid, Vertex).
Bring experience in Rust and Solidity, with the ability to navigate low-level systems and smart contracts.
Have built or traded DeFi strategies and understand the nuances of institutional users, market structure, performance optimization, and gas fees.
Must be based in NYC or willing to relocate.
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What You'll Do
Contribute to the core engineering efforts behind Monaco’s CLOB (Central Limit Order Book), supporting both spot trading and perpetual futures trading instruments.
Build and optimize low-latency trading infrastructure, with both on and offchain nuances.
Lead the smart contract development for Monaco’s EVM-based perpetuals product (Solidity).
Improve performance of order matching systems with a strong focus on latency and reliability.
Ship production code for Monaco v1 and lead explorations into v2 architecture with the Sei Labs.
Who You Are
3+ years of engineering experience, building low latency trading systems, ideally across both TradFi and DeFi stacks.
Have worked at or adjacent to HFT firms (e.g., Citadel, Cubist, AQR, Jump, HRT) or were part of early engineering teams at CLOB protocols/perp DEXs (like dYdX, Hyperliquid, Vertex).
Bring experience in Rust and Solidity, with the ability to navigate low-level systems and smart contracts.
Have built or traded DeFi strategies and understand the nuances of institutional users, market structure, performance optimization, and gas fees.
Must be based in NYC or willing to relocate.
#J-18808-Ljbffr