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Protocol Software Engineer - Consensus

Sei Labs
New York CityPosted 470 days ago
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About Sei Labs

Sei Labs builds open sourced technology for the high-performance Sei Blockchain, the first parallelized EVM Layer 1 blockchain designed to scale with the industry. The unique optimizations built into Sei enable Web3 applications to reach Web2 level scale and performance, driving the mass adoption of digital assets.

Our teams are comprised of former Google, Goldman Sachs, Robinhood, Nvidia, and Databricks veterans dedicated to onboarding the next billion users onto a vibrant ecosystem of applications.

Sei Labs has raised over $30M from top investors including Jump Crypto, Multicoin Capital, Coinbase Ventures, Distributed Global, Hudson River Trading, and Flow Traders.

Check out our website and docs for more details.

Protocol Engineering at Sei Sei Labs is looking for a Protocol Engineer to lead the development of core components of the Sei Blockchain. You'll work at the forefront of blockchain infrastructure, designing and optimizing the foundational layers of a high-performance, scalable decentralized network. You'll collaborate closely with our engineering team and ecosystem partners, constantly innovating to push the boundaries of blockchain technology. If you're passionate about low-level systems design, performance optimization, and shaping the future of decentralized networks, this is a rare opportunity to make a lasting impact in Web3.

Key Responsibilities

  • Write code to build the core sei blockchain (consensus, state management, etc.)
  • Proactively identify and drive optimizations and improvements to the product.
  • Collaborate with our frontend team to fine tune our REST API to support our customers.
  • Take ownership over your work and the work of the team.

Qualifications & Requirements

  • 5+ years of infrastructure engineering experience.
  • Proven results in building or scaling Layer 1 blockchains performance.
  • A proven tech lead with experience planning and leading large projects with long-term impact on a single system or team.
  • Strong technical grasp and excellent judgment on task prioritizations.
  • Able to tackle complex engineering problems that deliver results.
  • History of creating and applying new processes and tooling to increase engineering efficiency.

About Sei Labs

Sei Labs is the core developer of Sei Network, a high-throughput Layer 1 blockchain engineered specifically for digital asset trading, DEXs, and high-frequency Web3 applications. Featuring built-in order matching engines, sub-second finality, and parallelized EVM execution (Sei v2), Sei Labs brings Wall Street-grade trading speed to decentralized finance. Built with parallelized execution and specialized consensus mechanics, Sei Network delivers sub-second transaction finality and Wall Street-grade orderbook throughput for high-frequency Web3 trading applications. Sei Labs empowers developers to launch high-performance DEXs, perpetual futures markets, and gaming protocols with native EVM compatibility and built-in matching engines. Sei's architecture optimizes orderbook liquidity, sub-second execution, and high-concurrency smart contract throughput, bringing Wall Street-grade trading infrastructure to the Web3 ecosystem.