Sei Labs builds open-source blockchain infrastructure centered on Sei Network, a Layer 1 chain focused on high-performance transaction processing. The tech stack—Solidity, Go, Rust, TypeScript, plus EVM and Ethereum primitives—reflects a mature blockchain engineering org. Active hiring across 26 roles with engineering-heavy composition (13 engineers, mostly mid/senior level) points to continued infrastructure scaling and incubation work, while simultaneous focus on DeFi, real-world assets, and consensus protocol improvements suggests the team is broadening beyond pure performance into ecosystem breadth.
Sei Labs operates as a research and development lab building blockchain infrastructure and ecosystem products around Sei Network, a Layer 1 chain optimized for performance. The company serves developers and projects in the Web3 ecosystem, with active work spanning core blockchain components, dApp frameworks, mobile-first applications, and strategic ecosystem initiatives. Current focus areas include consensus protocol improvements, scalability enhancements, and bridging crypto infrastructure with traditional finance use cases. The org is structured around engineering, product, design, and go-to-market functions, with headquarters in San Francisco.
Sei Labs uses Solidity, Go, Rust, and TypeScript across its stack, alongside AWS, Terraform, Ethereum Virtual Machine, and REST APIs. SQL and NoSQL handle data layers.
Sei Labs is based in San Francisco, CA and currently hiring in the United States.
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