Sei Labs

Monaco Trading - Lead Quantitative Developer

Lead Quantitative Developer

Lead role designing and implementing risk engines and margining systems; 6+ years in systematic trading/quant-dev; proficient in Rust; cross-asset crypto and traditional assets.

Talent Acquisition Specialist

1–4 years sourcing talent; web3/crypto experience a must; strong written communication; fast-paced startup mindset.

Backend Software Engineer - Incubations

Backend Software Engineer

3+ years full-stack with backend focus; 1+ year Web3 with production Solidity; Go or TypeScript; SQL/NoSQL; AWS/Terraform.

Fullstack Software Engineer - Incubations

Fullstack Software Engineer

3+ years full-stack development with backend/API focus; 1+ year Web3 with production Solidity contracts; proficiency in Go or Typescript; experience with SQL/NoSQL databases; experience with AWS and Terraform.

Protocol Software Engineer - Consensus

Protocol Engineer

5+ years infrastructure engineering; experience building or scaling Layer 1 blockchains; proven tech lead capable of planning and leading large projects; strong prioritization and problem-solving; ability to drive engineering efficiency.

Title	Location	Date
Monaco Trading - Lead Quantitative Developer Full Time · 6+ YOE New York City, New York, United States · Hybrid	New York City, New York, United States Hybrid	Mar 16, 2026
Talent Acquisition Specialist Full Time · 1+ YOE New York, New York, United States · Hybrid	New York, New York, United States Hybrid	Jan 11, 2026
Backend Software Engineer - Incubations Full Time · 3+ YOE New York City, New York, United States · Hybrid	New York City, New York, United States Hybrid	Jan 8, 2026
Fullstack Software Engineer - Incubations Full Time · 3+ YOE New York City, New York, United States · Hybrid	New York City, New York, United States Hybrid	Jan 8, 2026
Protocol Software Engineer - Consensus Full Time · 5+ YOE New York, New York, United States · Hybrid	New York, New York, United States Hybrid	May 27, 2025

Activities	blockchain protocol developmentopen source software engineeringdecentralized infrastructure provisionsmart contract platform operationblockchain ecosystem support
Headquarters	US
Industries	BlockchainFintech
Name	Sei Labs
Employees	100
Type	Private
Tagline	Develops high-performance Layer 1 blockchain technology for digital assets.
Founded	2,021
Website	sei.io
Latest Funding Round	Series B
Latest Funding Year	2,023
Latest Funding Amount	30,000,000
Latest Investors	Jump CryptoMulticoin Capital

Sei Labs

About Sei Labs